/**
 * Main stylesheet for Зеро Стек (zero-stack.pro)
 * Единый стиль с portal.zero-stack.pro — тема задаётся в theme-portal.css
 */

@import url('theme-portal.css');

/* ===== Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 217, 255, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 80% 70%, rgba(0, 102, 255, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 50% 50%, rgba(124, 58, 237, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundPulse 8s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 60px rgba(0, 217, 255, 0.3);
    position: relative;
    display: inline-block;
}

h2 {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 700;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

h3 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
    display: inline-block;
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

a:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

a:hover::after {
    width: 100%;
}

code {
    font-family: var(--font-mono);
    background: var(--color-bg-card);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
    border: 1px solid var(--color-border);
}

pre {
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

pre code {
    background: none;
    padding: 0;
    border: none;
}

/* ===== Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ===== Header & Navigation ===== */
.header {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 217, 255, 0.1);
    border-bottom-color: rgba(0, 217, 255, 0.2);
}

.header.scrolled::before {
    opacity: 0.5;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    transition: transform var(--transition-base);
    position: relative;
    font-family: var(--font-mono);
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: translateZ(0) scale(1.05);
}

.logo:hover::after {
    transform: scaleX(1);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.8125rem;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-glow);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::before {
    transform: scaleX(1);
}

.nav-link.active {
    color: var(--color-accent-primary);
}

.nav-link.active::before {
    transform: scaleX(1);
}

.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: transform var(--transition-base);
    position: relative;
    z-index: 1001;
}

.mobile-menu-button:hover {
    transform: scale(1.1);
}

.mobile-menu-button:active {
    transform: scale(0.95);
}

@media (max-width: 767px) {
    .mobile-menu-button {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--spacing-2xl) var(--spacing-md);
        border-top: 1px solid var(--color-border);
        transform: translateX(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
        justify-content: center;
        gap: var(--spacing-lg);
        backdrop-filter: blur(20px);
    }
    
    .nav-menu.open {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 1.125rem;
        padding: var(--spacing-sm) 0;
    }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), color var(--transition-base);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.8125rem;
    white-space: nowrap;
    will-change: transform;
    transform: translateZ(0);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s ease-out;
    pointer-events: none;
}

.btn:active::before {
    transform: translate(-50%, -50%) scale(1);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 20px rgba(0, 217, 255, 0.4), 0 0 0 1px rgba(0, 217, 255, 0.2);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover {
    transform: translateZ(0) translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 217, 255, 0.6), 0 0 0 1px rgba(0, 217, 255, 0.3);
    filter: brightness(1.15);
}

.btn-primary:hover::after {
    width: 300px;
    height: 300px;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--color-accent-primary);
    border: 2px solid var(--color-accent-primary);
    box-shadow: 0 0 0 rgba(0, 217, 255, 0);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left var(--transition-base);
    z-index: -1;
}

.btn-secondary:hover {
    background: var(--color-accent-primary);
    color: var(--color-text-inverse);
    transform: translateZ(0) translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 217, 255, 0.5);
    border-color: var(--color-accent-primary);
}

.btn-secondary:hover::before {
    left: 0;
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===== Cards ===== */
.card {
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.9) 0%, rgba(32, 32, 48, 0.9) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    display: flex;
    flex-direction: column;
    min-height: 100%;
    height: 100%;
    will-change: transform;
    transform: translateZ(0);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.6);
}

.card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.15) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
    animation: cardGlow 3s ease-in-out infinite;
}

@keyframes cardGlow {
    0%, 100% {
        opacity: 0;
    }
    50% {
        opacity: 0.1;
    }
}

.card:hover {
    transform: translateZ(0) translateY(-12px) scale(1.02);
    border-color: rgba(0, 217, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 217, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    background: linear-gradient(135deg, rgba(32, 32, 48, 0.95) 0%, rgba(40, 40, 60, 0.95) 100%);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover::after {
    opacity: 1;
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    display: block;
    transition: all var(--transition-base);
    filter: drop-shadow(0 0 15px rgba(0, 217, 255, 0.4));
    flex-shrink: 0;
    will-change: transform;
    position: relative;
    z-index: 1;
    animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.card h3 {
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    min-height: 0;
    line-height: 1.3;
    transition: color var(--transition-base);
}

.card h3 a {
    color: inherit;
    text-decoration: none;
    transition: all var(--transition-base);
}

.card:hover h3 {
    color: var(--color-accent-primary);
    text-shadow: 0 0 15px rgba(0, 217, 255, 0.4);
}

.card:hover h3 a {
    color: var(--color-accent-primary);
}

.card p {
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    word-wrap: break-word;
    word-break: break-word;
    line-height: 1.6;
    margin-bottom: 0;
    min-height: 0;
    max-height: calc(1.6em * 4);
    /* Fallback for browsers that don't support line-clamp */
    max-height: 6.4em;
    transition: color var(--transition-base);
}

.card:hover p {
    color: var(--color-text-primary);
}

/* Fallback for browsers without webkit-line-clamp support */
@supports not (-webkit-line-clamp: 4) {
    .card p {
        max-height: 6.4em;
        overflow: hidden;
        position: relative;
    }
    
    .card p::after {
        content: '...';
        position: absolute;
        bottom: 0;
        right: 0;
        background: var(--gradient-card);
        padding-left: 0.5em;
    }
}

.card:hover .card-icon {
    transform: scale(1.2) rotate(8deg) translateY(-3px);
    filter: drop-shadow(0 0 30px rgba(0, 217, 255, 0.8));
    animation: iconPulse 0.6s ease-in-out;
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1.2) rotate(8deg) translateY(-3px);
    }
    50% {
        transform: scale(1.3) rotate(8deg) translateY(-5px);
    }
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    padding-bottom: calc(var(--spacing-3xl) + var(--spacing-2xl));
    margin-bottom: 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--gradient-dark);
    isolation: isolate;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(0, 217, 255, 0.2) 0%, transparent 60%),
        radial-gradient(circle at 70% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 50% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
    pointer-events: none;
    animation: heroPulse 6s ease-in-out infinite;
    z-index: -1;
}

@keyframes heroPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 217, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 217, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    opacity: 0.6;
    animation: gridMove 20s linear infinite;
    z-index: -1;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(60px, 60px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out;
    text-shadow: 0 0 60px rgba(0, 217, 255, 0.4), 0 0 100px rgba(0, 102, 255, 0.2);
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
    line-height: 1.6;
}

.hero-platform {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-link {
    color: var(--color-accent-primary);
    transition: all var(--transition-base);
    position: relative;
    text-decoration: none;
    display: inline-block;
    font-weight: 500;
}

.hero-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.hero-link:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 15px rgba(0, 217, 255, 0.6);
}

.hero-link:hover::after {
    width: 100%;
}

.hero-platform-link {
    color: var(--color-accent-primary);
    transition: all var(--transition-base);
    position: relative;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
}

.hero-platform-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.6);
}

.hero-platform-link:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 20px rgba(0, 217, 255, 0.7);
}

.hero-platform-link:hover::after {
    width: 100%;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
    margin-top: var(--spacing-lg);
}

/* ===== Sections ===== */
.section {
    padding: var(--spacing-2xl) 0;
    position: relative;
    isolation: isolate;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 217, 255, 0.02) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* Дополнительный отступ для первой секции после Hero */
.hero + .section {
    padding-top: calc(var(--spacing-3xl) + var(--spacing-xl));
    margin-top: 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    display: inline-block;
    width: 100%;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.6);
    animation: titleUnderline 2s ease-in-out infinite;
}

@keyframes titleUnderline {
    0%, 100% {
        width: 120px;
        opacity: 1;
    }
    50% {
        width: 150px;
        opacity: 0.8;
    }
}

/* ===== Grid ===== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
    align-items: stretch;
}

.grid-1 {
    grid-template-columns: 1fr;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===== Project Card ===== */
.project-card {
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.9) 0%, rgba(32, 32, 48, 0.9) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    will-change: transform;
    transform: translateZ(0);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    z-index: 1;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 240px;
    background: var(--color-bg-card);
}

.project-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    filter: brightness(0.9);
    will-change: transform;
    transform: translateZ(0);
}

.project-card:hover .project-card-image {
    transform: translateZ(0) scale(1.15);
    filter: brightness(1);
}

.project-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.project-card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    font-weight: 600;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    min-height: 0;
}

.project-card-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    line-height: 1.6;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    word-wrap: break-word;
    word-break: break-word;
    min-height: 0;
    max-height: calc(1.6em * 3);
    /* Fallback */
    max-height: 4.8em;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    background: rgba(0, 217, 255, 0.12);
    color: var(--color-accent-primary);
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid rgba(0, 217, 255, 0.3);
    transition: all var(--transition-base);
    font-family: var(--font-mono);
    will-change: transform;
    box-shadow: 0 2px 8px rgba(0, 217, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.tag:hover {
    background: rgba(0, 217, 255, 0.25);
    border-color: var(--color-accent-primary);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.5);
}

.tag:hover::before {
    left: 100%;
}

.project-card-link {
    margin-top: auto;
    color: var(--color-accent-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.project-card-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.project-card-link:hover {
    gap: var(--spacing-sm);
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.project-card-link:hover::after {
    width: 100%;
}

.project-card-actions {
    margin-top: auto;
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
    flex-shrink: 0;
}

.project-card-link-demo {
    color: var(--color-accent-tertiary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: color var(--transition-base), gap var(--transition-base);
}

.project-card-link-demo:hover {
    gap: var(--spacing-sm);
    color: var(--color-accent-secondary);
}

.project-card:hover {
    transform: translateZ(0) translateY(-8px) scale(1.02);
    border-color: rgba(0, 217, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 217, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ===== Demo Block ===== */
.demo-block {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.95) 0%, rgba(32, 32, 48, 0.95) 100%);
    border: 1px solid rgba(0, 217, 255, 0.4);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 217, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    position: relative;
    overflow: hidden;
}

.demo-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.6);
}

.demo-icon {
    font-size: 1.25rem;
    margin-right: var(--spacing-xs);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.btn-demo {
    background: var(--gradient-secondary);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-glow);
    border: 1px solid transparent;
    font-size: 1rem;
    padding: 1rem 2.5rem;
    text-transform: none;
    letter-spacing: normal;
}

.btn-demo:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
    filter: brightness(1.1);
}

.btn-demo:active {
    transform: translateY(0);
}

/* ===== Article Card ===== */
.article-card {
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.9) 0%, rgba(32, 32, 48, 0.9) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    will-change: transform;
    transform: translateZ(0);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.article-card-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: var(--color-bg-card);
}

.article-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    filter: brightness(0.9);
    will-change: transform;
    transform: translateZ(0);
}

.article-card:hover .article-card-image {
    transform: translateZ(0) scale(1.15);
    filter: brightness(1);
}

.article-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.article-card-category {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.25) 0%, rgba(124, 58, 237, 0.15) 100%);
    color: var(--color-accent-tertiary);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(124, 58, 237, 0.3);
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.2);
    transition: all var(--transition-base);
}

.article-card:hover .article-card-category {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.35) 0%, rgba(124, 58, 237, 0.25) 100%);
    border-color: var(--color-accent-tertiary);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);
    transform: scale(1.05);
}

.article-card-date {
    color: var(--color-text-muted);
}

.article-card-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    font-weight: 600;
    line-height: 1.4;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    min-height: 0;
}

.article-card-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    line-height: 1.6;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    word-wrap: break-word;
    word-break: break-word;
    min-height: 0;
    max-height: calc(1.6em * 3);
    /* Fallback */
    max-height: 4.8em;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.article-card-views {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-card-link {
    color: var(--color-accent-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    font-size: 0.875rem;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.article-card-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.article-card-link:hover {
    gap: var(--spacing-sm);
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.article-card-link:hover::after {
    width: 100%;
}

.article-card:hover {
    transform: translateZ(0) translateY(-8px) scale(1.02);
    border-color: rgba(0, 217, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 217, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ===== Detail Pages ===== */
.page-header {
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-dark);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 102, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.page-header > * {
    position: relative;
    z-index: 1;
}

.page-header-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

.page-content {
    max-width: 900px;
    margin: 0 auto;
}

.page-breadcrumb {
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.page-breadcrumb a {
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.page-breadcrumb a:hover {
    color: var(--color-accent-primary);
}

.page-title {
    margin-bottom: var(--spacing-md);
}

.page-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.page-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.page-body {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.page-body p {
    margin-bottom: var(--spacing-md);
}

.page-body h2,
.page-body h3,
.page-body h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    position: relative;
    padding-left: var(--spacing-md);
}

.page-body h2::before,
.page-body h3::before,
.page-body h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.page-body ul,
.page-body ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.page-body li {
    margin-bottom: var(--spacing-xs);
}

.page-body a {
    color: var(--color-accent-primary);
    text-decoration: none;
    text-underline-offset: 2px;
    position: relative;
    transition: all var(--transition-base);
}

.page-body a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.page-body a:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.page-body a:hover::after {
    width: 100%;
}

.page-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xl);
    color: var(--color-text-secondary);
    transition: color var(--transition-base), gap var(--transition-base);
}

.page-back-link:hover {
    color: var(--color-accent-primary);
    gap: var(--spacing-sm);
}

/* ===== Versions List ===== */
.versions-list {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.version-item {
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.9) 0%, rgba(32, 32, 48, 0.9) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.version-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform var(--transition-base);
}

.version-item:hover {
    border-color: rgba(0, 217, 255, 0.4);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 217, 255, 0.2);
    transform: translateX(6px) translateY(-2px);
}

.version-item:hover::before {
    transform: scaleY(1);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-sm);
}

.version-number {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    font-family: var(--font-mono);
}

.version-date {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.version-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.version-features {
    margin-top: var(--spacing-md);
}

.version-features h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.version-features ul {
    list-style: none;
    margin-left: 0;
}

.version-features li {
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.version-features li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
}

/* ===== Related Items ===== */
.related-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.related-item {
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.9) 0%, rgba(32, 32, 48, 0.9) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    will-change: transform;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.related-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.related-item:hover {
    border-color: rgba(0, 217, 255, 0.4);
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 217, 255, 0.3);
}

.related-item:hover::after {
    transform: scaleX(1);
}

.related-item-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.related-item-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.related-item-link {
    color: var(--color-accent-primary);
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: color var(--transition-base), gap var(--transition-base);
}

.related-item-link:hover {
    gap: var(--spacing-sm);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.pagination-link {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), transform var(--transition-base);
    font-weight: 500;
    min-width: 44px;
    text-align: center;
}

.pagination-link:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.pagination-link.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--color-text-inverse);
    box-shadow: 0 4px 20px rgba(0, 217, 255, 0.5);
    transform: scale(1.1);
}

.pagination-info {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ===== Footer ===== */
.footer {
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    position: relative;
    isolation: isolate;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.6;
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 217, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.footer-section p,
.footer-section a {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.8;
    transition: color var(--transition-base);
}

.footer-section a {
    position: relative;
    display: inline-block;
    transition: all var(--transition-base);
}

.footer-section a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.footer-section a:hover {
    color: var(--color-accent-primary);
    text-shadow: 0 0 8px rgba(0, 217, 255, 0.4);
}

.footer-section a:hover::after {
    width: 100%;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Удалены неиспользуемые @keyframes: fadeIn, slideInRight */

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* @keyframes glow removed - использует box-shadow (некомбинированная анимация) */

/* Удалены неиспользуемые классы анимаций: animate-fade-in, animate-fade-in-up, animate-slide-in-right */

@keyframes shake {
    0%, 100% { transform: translate3d(0, 0, 0); }
    10%, 30%, 50%, 70%, 90% { transform: translate3d(-5px, 0, 0); }
    20%, 40%, 60%, 80% { transform: translate3d(5px, 0, 0); }
}

.error {
    border-color: var(--color-accent-error) !important;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.3) !important;
}

.scroll-to-top:hover {
    transform: translate3d(0, -4px, 0) scale(1.1);
    box-shadow: var(--shadow-glow-strong);
}

/* ===== Scroll Animations ===== */
.fade-in-on-scroll {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    backface-visibility: hidden;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

/* Stagger animation for multiple elements */
.fade-in-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.fade-in-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.fade-in-on-scroll:nth-child(3) { transition-delay: 0.3s; }
.fade-in-on-scroll:nth-child(4) { transition-delay: 0.4s; }
.fade-in-on-scroll:nth-child(5) { transition-delay: 0.5s; }
.fade-in-on-scroll:nth-child(6) { transition-delay: 0.6s; }
.fade-in-on-scroll:nth-child(n+7) { transition-delay: 0.7s; }

/* ===== Services Section - No Animation ===== */
/* More specific selectors to override fade-in-on-scroll without !important */
.services-section .section-title,
.services-section .section-title.fade-in-on-scroll,
.services-section .section-title.fade-in-on-scroll.visible {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
}

.services-section .services-grid .card.service-card,
.services-section .services-grid .card.service-card.fade-in-on-scroll,
.services-section .services-grid .card.service-card.fade-in-on-scroll.visible {
    opacity: 1;
    transform: none;
    transition: all var(--transition-base);
    animation: none;
    backface-visibility: visible;
}

/* Override fade-in-on-scroll when applied to any services section elements */
.services-section .fade-in-on-scroll,
.services-section .fade-in-on-scroll.visible {
    opacity: 1;
    transform: none;
    transition: none;
}

/* ===== Service Card Specific Styles ===== */
.service-card {
    position: relative;
}

.service-card .card-icon {
    position: relative;
    z-index: 1;
}

.service-card:hover {
    transform: translateZ(0) translateY(-12px) scale(1.02);
}

/* ===== FAQ Cards ===== */
.faq-card {
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.9) 0%, rgba(32, 32, 48, 0.9) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.faq-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform var(--transition-base);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.6);
}

.faq-card:hover {
    border-color: rgba(0, 217, 255, 0.4);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 217, 255, 0.3);
    transform: translateY(-4px) translateX(4px);
}

.faq-card:hover::before {
    transform: scaleY(1);
}

.faq-card h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    line-height: 1.4;
    transition: color var(--transition-base);
}

.faq-card:hover h3 {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 15px rgba(0, 217, 255, 0.5);
}

.faq-card p {
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.7;
}

/* ===== Related Sections Block ===== */
.related-sections {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.95) 0%, rgba(32, 32, 48, 0.95) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.related-sections::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.6;
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.related-sections h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    font-size: 1.25rem;
}

.related-sections p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.related-sections ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: 0;
}

.related-sections li {
    position: relative;
    padding-left: var(--spacing-md);
}

.related-sections li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
    font-weight: 600;
    transition: transform var(--transition-base), color var(--transition-base);
}

.related-sections li:hover::before {
    transform: translateX(4px);
    color: var(--color-accent-secondary);
}

.related-sections a {
    color: var(--color-accent-primary);
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
    display: inline-block;
}

.related-sections a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.related-sections a:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.related-sections a:hover::after {
    width: 100%;
}

/* ===== Service Card Links ===== */
.service-card-link {
    color: var(--color-accent-primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    padding: var(--spacing-xs) 0;
}

.service-card-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.service-card-link:hover {
    color: var(--color-accent-secondary);
    gap: var(--spacing-sm);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.service-card-link:hover::after {
    width: 100%;
}

/* ===== Info Block ===== */
.info-block {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.95) 0%, rgba(32, 32, 48, 0.95) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.info-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.6;
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.info-block p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.info-block strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.info-block ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin: 0;
}

.info-block li {
    position: relative;
    padding-left: var(--spacing-md);
}

.info-block li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
    font-weight: 600;
    transition: transform var(--transition-base), color var(--transition-base);
}

.info-block li:hover::before {
    transform: translateX(4px);
    color: var(--color-accent-secondary);
}

.info-block a {
    color: var(--color-accent-primary);
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
    display: inline-block;
}

.info-block a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.5);
}

.info-block a:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.info-block a:hover::after {
    width: 100%;
}

/* ===== Section Description ===== */
.section-description {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-secondary);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.section-description strong {
    color: var(--color-text-primary);
    font-weight: 600;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2) 0%, rgba(0, 102, 255, 0.2) 100%);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    display: inline-block;
    border: 1px solid rgba(0, 217, 255, 0.3);
    box-shadow: 0 2px 8px rgba(0, 217, 255, 0.2);
    transition: all var(--transition-base);
    position: relative;
}

.section-description strong::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3) 0%, rgba(0, 102, 255, 0.3) 100%);
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.section-description:hover strong::before {
    opacity: 1;
}

/* ===== Utility Classes ===== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient {
    background: var(--gradient-primary);
}

.border-gradient {
    border: 2px solid transparent;
    background: linear-gradient(var(--color-bg-card), var(--color-bg-card)) padding-box,
                var(--gradient-primary) border-box;
}

.glow {
    box-shadow: var(--shadow-glow);
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-text-muted);
}

.mt-8 {
    margin-top: var(--spacing-lg);
}

.mb-8 {
    margin-bottom: var(--spacing-lg);
}

.py-12 {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.py-16 {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-muted);
    background: linear-gradient(135deg, rgba(26, 26, 40, 0.5) 0%, rgba(32, 32, 48, 0.5) 100%);
    border-radius: var(--radius-xl);
    border: 1px dashed var(--color-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h2::after {
        width: 80px;
    }
    
    .hero {
        min-height: 70vh;
        padding: var(--spacing-xl) 0;
        padding-bottom: calc(var(--spacing-xl) + var(--spacing-lg));
        margin-bottom: 0;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero + .section {
        padding-top: calc(var(--spacing-2xl) + var(--spacing-md));
        margin-top: 0;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .related-sections ul,
    .info-block ul {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .card:hover {
        transform: translateZ(0) translateY(-8px) scale(1.01);
    }
    
    .section-description {
        font-size: 1rem;
    }
}

/* ===== Loading States ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-accent-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Focus States ===== */
*:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ===== Ripple Effect ===== */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 5px;
    border: 2px solid var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-hover);
}

/* ===== Selection ===== */
::selection {
    background: rgba(0, 217, 255, 0.3);
    color: var(--color-text-primary);
}

::-moz-selection {
    background: rgba(0, 217, 255, 0.3);
    color: var(--color-text-primary);
}

/* Стили форм вынесены в forms.css */

/* Стили метролога вынесены в metrolog.css */

/* ===== Corporate B2B Overrides ===== */
body::before,
.hero::before,
.hero::after,
.section::before,
.logo::after,
.nav-link::before,
.card::before,
.card::after,
.project-card::before,
.demo-block::before,
.footer::before,
.footer::after,
.related-sections::before,
.info-block::before,
.faq-card::before,
h2::after,
.section-title::after,
a::after,
.hero-link::after,
.hero-platform-link::after,
.article-card-link::after,
.project-card-link::after,
.service-card-link::after,
.related-sections a::after,
.info-block a::after {
    content: none !important;
    background: none !important;
    box-shadow: none !important;
    animation: none !important;
}

* {
    text-shadow: none !important;
}

::selection,
::-moz-selection {
    background: rgba(37, 99, 235, 0.15) !important;
    color: var(--color-text-primary) !important;
}

body {
    background: var(--color-bg-primary) !important;
    color: var(--color-text-primary) !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text-primary) !important;
    background: none !important;
    -webkit-text-fill-color: currentcolor !important;
    letter-spacing: -0.01em !important;
}

h1 {
    font-size: var(--hero-h1, clamp(2rem, 5vw, 3.5rem)) !important;
    font-weight: 700 !important;
}

h2 {
    font-size: var(--section-h2, clamp(1.75rem, 4vw, 2.5rem)) !important;
    font-weight: 700 !important;
}

h3 {
    font-size: var(--section-h3, clamp(1.25rem, 2.5vw, 1.75rem)) !important;
    font-weight: 600 !important;
}

a {
    color: var(--color-accent-primary) !important;
    transition: color var(--transition-base) !important;
}

a:hover {
    color: var(--color-brand-primary-hover) !important;
}

.container {
    max-width: 1280px !important;
}

/* 12-column grid */
.grid-12 {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--spacing-md);
}

.col-span-12 { grid-column: span 12; }
.col-span-8 { grid-column: span 8; }
.col-span-6 { grid-column: span 6; }
.col-span-4 { grid-column: span 4; }
.col-span-3 { grid-column: span 3; }

@media (max-width: 992px) {
    .col-span-8,
    .col-span-6,
    .col-span-4,
    .col-span-3 {
        grid-column: span 12;
    }
}

.header {
    background: var(--color-bg-primary) !important;
    border-bottom: 1px solid var(--color-border) !important;
    box-shadow: 0 1px 0 rgba(16, 24, 40, 0.04) !important;
    backdrop-filter: none !important;
}

.header.scrolled {
    background: var(--color-bg-primary) !important;
    border-bottom-color: var(--color-border-hover) !important;
    box-shadow: var(--shadow-md) !important;
}

/* Theme toggle: light theme — show moon (switch to dark); dark theme — show sun (switch to light) */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.theme-toggle:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-hover);
    color: var(--color-accent-primary);
}

.theme-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle .theme-icon-sun {
    display: none;
}

.theme-toggle .theme-icon-moon {
    display: inline-flex;
}

[data-theme="dark"] .theme-toggle .theme-icon-sun {
    display: inline-flex;
}

[data-theme="dark"] .theme-toggle .theme-icon-moon {
    display: none;
}

.logo,
.logo-link {
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    letter-spacing: -0.025em !important;
    color: var(--color-text-primary) !important;
    background: none !important;
    -webkit-text-fill-color: currentcolor !important;
    text-decoration: none !important;
    transition: color var(--transition-base) !important;
}

@media (min-width: 768px) {
    .logo,
    .logo-link {
        font-size: 1.5rem !important;
    }
}

.logo .accent,
.logo-link .accent {
    color: var(--color-accent-primary) !important;
    -webkit-text-fill-color: var(--color-accent-primary) !important;
    transition: color var(--transition-base) !important;
}

.logo:hover,
.logo-link:hover {
    color: var(--color-accent-primary) !important;
    -webkit-text-fill-color: var(--color-accent-primary) !important;
}

.logo:hover .accent,
.logo-link:hover .accent {
    color: var(--color-accent-secondary) !important;
    -webkit-text-fill-color: var(--color-accent-secondary) !important;
}

.logo:hover {
    transform: none !important;
}

.logo-footer {
    margin-bottom: var(--spacing-md);
    font-size: inherit;
    font-weight: 700;
}

.nav-link,
.nav-link.active {
    color: var(--color-text-secondary) !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
    font-size: 0.9375rem !important;
}

.nav-link:hover {
    color: var(--color-accent-primary) !important;
}

.mobile-menu-button,
.mobile-menu-button:hover,
.mobile-menu-button:active {
    transform: none !important;
}

.btn {
    border-radius: var(--radius-md) !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
    font-size: 0.9375rem !important;
    padding: 0.75rem 1.25rem !important;
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base) !important;
    box-shadow: none !important;
    transform: none !important;
}

.btn::before,
.btn::after,
.btn-primary::after,
.btn-secondary::before {
    content: none !important;
    display: none !important;
}

.btn-primary,
.btn-demo {
    background: var(--color-brand-primary) !important;
    color: var(--color-text-inverse) !important;
    border: 1px solid var(--color-brand-primary) !important;
    box-shadow: none !important;
}

.btn-primary:hover,
.btn-demo:hover {
    background: var(--color-brand-primary-hover) !important;
    border-color: var(--color-brand-primary-hover) !important;
    filter: none !important;
}

.btn-secondary,
.btn-outline {
    background: var(--color-bg-card) !important;
    color: var(--color-accent-primary) !important;
    border: 1px solid var(--color-accent-primary) !important;
}

.btn-secondary:hover,
.btn-outline:hover {
    background: var(--color-bg-hover) !important;
    color: var(--color-brand-primary-hover) !important;
    border-color: var(--color-brand-primary-hover) !important;
}

.hero,
.page-header,
.section,
.footer,
.demo-block,
.related-sections,
.info-block {
    background: transparent !important;
    isolation: auto !important;
}

.hero {
    min-height: auto !important;
    padding: var(--spacing-2xl) 0 !important;
    border-bottom: 1px solid var(--color-border) !important;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    margin-bottom: var(--spacing-md) !important;
    animation: none !important;
}

.hero-subtitle {
    color: var(--color-text-secondary) !important;
    margin-bottom: var(--spacing-lg) !important;
    animation: none !important;
}

.hero-buttons {
    animation: none !important;
}

.section-title {
    text-align: left !important;
    margin-bottom: var(--spacing-lg) !important;
    padding-bottom: 0 !important;
}

.section-description {
    color: var(--color-text-secondary) !important;
    line-height: 1.7 !important;
}

.section-description strong {
    background: none !important;
    border: 0 !important;
    box-shadow: none !important;
    padding: 0 !important;
}

.card,
.project-card,
.article-card,
.faq-card,
.related-item,
.version-item,
.empty-state {
    background: var(--color-bg-card) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-md) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    transform: none !important;
}

.card:hover,
.project-card:hover,
.article-card:hover,
.faq-card:hover,
.related-item:hover,
.version-item:hover {
    box-shadow: var(--shadow-lg) !important;
    border-color: var(--color-border-hover) !important;
    transform: none !important;
    background: var(--color-bg-card) !important;
}

.card-icon {
    filter: none !important;
    animation: none !important;
    font-size: 2rem !important;
}

.project-card:hover .project-card-image,
.article-card:hover .article-card-image {
    transform: none !important;
    filter: none !important;
}

.tag,
.article-card-category {
    background: var(--color-bg-secondary) !important;
    color: var(--color-text-secondary) !important;
    border: 1px solid var(--color-border) !important;
    box-shadow: none !important;
    border-radius: var(--radius-sm) !important;
}

.tag:hover,
.article-card:hover .article-card-category {
    background: var(--color-bg-hover) !important;
    transform: none !important;
    border-color: var(--color-border-hover) !important;
}

.pagination-link {
    background: var(--color-bg-card) !important;
    border: 1px solid var(--color-border) !important;
    color: var(--color-text-secondary) !important;
    transform: none !important;
    box-shadow: none !important;
}

.pagination-link:hover {
    background: var(--color-bg-hover) !important;
    border-color: var(--color-border-hover) !important;
    color: var(--color-text-primary) !important;
}

.pagination-link.active {
    background: var(--color-brand-primary) !important;
    color: var(--color-text-inverse) !important;
    border-color: var(--color-brand-primary) !important;
}

.footer {
    border-top: 1px solid var(--color-border) !important;
    margin-top: var(--spacing-xl) !important;
    padding: var(--spacing-xl) 0 var(--spacing-lg) !important;
}

.footer-bottom {
    border-top: 1px solid var(--color-border) !important;
    color: var(--color-text-muted) !important;
}

.page-body h2,
.page-body h3,
.page-body h4 {
    padding-left: 0 !important;
}

.page-body h2::before,
.page-body h3::before,
.page-body h4::before {
    content: none !important;
}

.related-sections li::before,
.info-block li::before,
.version-features li::before {
    color: var(--color-accent-primary) !important;
}

.fade-in-on-scroll,
.fade-in-on-scroll.visible {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition-duration: 1ms !important;
    }
}

/* ===== Hero first screen: grid + dashboard placeholder + micro copy ===== */
.hero-grid {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}
@media (min-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
    }
}
.hero-grid .hero-content {
    text-align: left;
    max-width: none;
    margin: 0;
    padding-bottom: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}
/* Ровная вертикальная ритмика hero: отступы между блоками */
.hero-grid .hero-content h1 {
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
}
.hero-grid .hero-content .hero-subtitle {
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
}
.hero-grid .hero-content .hero-buttons {
    margin-top: 0;
    margin-bottom: 0;
}
.hero-grid .hero-content .hero-cta-labels {
    margin-top: var(--spacing-lg);
    margin-bottom: 0;
}
.hero-grid .hero-content .hero-benefits {
    margin-top: var(--spacing-lg);
    margin-bottom: 0;
}
.hero-grid .hero-content .hero-urgency {
    margin-top: var(--spacing-xl);
    margin-bottom: 0;
}
.hero-subtitle-small {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}
.hero-grid .hero-buttons {
    justify-content: flex-start;
    margin-top: var(--spacing-md);
}
.hero-micro {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
    margin-bottom: 0;
}

/* Hero: benefits (checkmarks) — pill row */
.hero-benefits {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-md);
    list-style: none;
    padding: 0;
    margin-bottom: 0;
}
.hero-benefits li {
    display: inline-flex;
    align-items: center;
    gap: 0.35em;
    font-size: 0.875rem;
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
}
.hero-benefits .hero-benefit-check {
    color: var(--color-accent-success, #10b981);
    font-weight: 700;
}

/* Hero: urgency & scarcity — subtle badges */
.hero-urgency {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
    margin-bottom: 0;
}
.hero-urgency-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}
.hero-urgency-item .hero-urgency-icon {
    font-size: 1rem;
    opacity: 0.9;
}
.hero-cta-labels {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

/* Section-level urgency (above forms on demo page) */
.section-urgency-wrap {
    margin-bottom: 0;
}
.urgency-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}
.urgency-badge .hero-urgency-icon {
    font-size: 1rem;
    opacity: 0.9;
}

.hero-visual {
    display: none;
}
@media (max-width: 991px) {
    .hero-grid .hero-content {
        text-align: center;
    }
    .hero-grid .hero-buttons {
        justify-content: center;
    }
}
@media (min-width: 992px) {
    .hero-visual {
        display: block;
    }
}
.hero-dashboard-placeholder {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 16/10;
    display: flex;
    flex-direction: column;
}
.hero-dashboard-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}
.hero-dashboard-mock {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--color-bg-card) 0%, var(--color-bg-hover) 100%);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}
/* Card SVG icons (Heroicons style) */
.card-icon-svg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    color: var(--color-accent-primary);
}
.card-icon-svg .icon-svg {
    width: 100%;
    height: 100%;
}
.icon-svg {
    width: 2rem;
    height: 2rem;
    color: currentColor;
}
.card-icon-svg .icon-svg {
    width: 2.25rem;
    height: 2.25rem;
}

/* ===== Features section "Что такое Зеро Стек" — grid of cards ===== */
.features-section {
    background-color: var(--color-bg-secondary);
}

.features-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border-hover);
}

.feature-card-icon {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-card-title {
    font-size: var(--section-h3, 1.25rem);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.feature-card-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
    margin: 0;
}

/* ===== Comparison table "Почему Excel уже не работает" ===== */
.comparison-section {
    background-color: var(--color-bg-secondary);
}

.comparison-table-wrapper {
    overflow-x: auto;
    overflow-y: hidden;
    margin: var(--spacing-xl) auto 0;
    max-width: 560px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    position: relative;
    border: 1px solid var(--color-border);
    background: var(--color-bg-card);
}

.comparison-table-wrapper::after {
    content: '';
    position: sticky;
    right: 0;
    top: 0;
    bottom: 0;
    width: 24px;
    margin-left: -24px;
    background: linear-gradient(to left, var(--color-bg-secondary) 0%, transparent 100%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.comparison-table-wrapper.is-scrollable::after {
    opacity: 1;
}

.comparison-table {
    width: 100%;
    min-width: 400px;
    border-collapse: collapse;
    border: none;
    background: var(--color-bg-card);
}

.comparison-table thead tr {
    background: var(--color-bg-secondary);
}

.comparison-th {
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.comparison-th-excel {
    text-align: center;
    color: var(--color-text-muted);
}

.comparison-th-zerostack {
    text-align: center;
    color: var(--color-accent-primary);
}

.comparison-row {
    color: var(--color-text-secondary);
    transition: background-color var(--transition-base);
}

.comparison-row:nth-child(even) {
    background: var(--color-bg-secondary);
}

.comparison-row:hover {
    background: var(--color-bg-hover);
}

.comparison-row:nth-child(even):hover {
    background: var(--color-bg-hover);
}

.comparison-cell {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.comparison-table tbody tr:last-child .comparison-cell {
    border-bottom: none;
}

.comparison-cell-task {
    font-weight: 500;
    color: var(--color-text-primary);
}

.comparison-cell-no,
.comparison-cell-yes {
    text-align: center;
}

.comparison-icon {
    font-size: 20px;
    line-height: 1;
    display: inline-block;
}

.comparison-cell-yes .comparison-icon {
    color: #10B981;
}

.comparison-cell-no .comparison-icon {
    color: #94A3B8;
}

@media (max-width: 600px) {
    .comparison-table-wrapper::after {
        opacity: 1;
    }
}