/* === LANDING.CSS ===
 * Стили для продающего лендинга A/B Testing Platform
 * Темная тема, градиенты, анимации
 * Mobile-first подход
 * ~950 строк
 */

/* ===================================
   CSS ПЕРЕМЕННЫЕ
   =================================== */
:root {
    /* Цветовая схема */
    --bg-dark: hsl(10, 10%, 4%);          /* #0a0a0a */
    --bg-secondary: hsl(10, 10%, 6%);     /* #171717 */
    --bg-tertiary: hsl(10, 10%, 10%);     /* #1a1a1a */

    --text-primary: hsl(0, 0%, 98%);      /* #fafafa */
    --text-secondary: hsl(0, 0%, 65%);    /* #a3a3a3 */
    --text-muted: hsl(0, 0%, 45%);        /* #737373 */

    --color-primary: hsl(217, 91%, 60%);  /* #3b82f6 */
    --color-secondary: hsl(262, 65%, 65%);/* #8b5cf6 */
    --color-success: hsl(142, 71%, 45%);  /* #10b981 */
    --color-warning: hsl(45, 93%, 58%);   /* #fbbf24 */
    --color-danger: hsl(0, 84%, 60%);     /* #ef4444 */

    --border-color: hsl(10, 10%, 15%);    /* #262626 */
    --border-radius: 12px;
    --border-radius-lg: 16px;

    /* Градиенты */
    --gradient-primary: linear-gradient(to right, #3b82f6, #8b5cf6);
    --gradient-success: linear-gradient(to right, #10b981, #059669);
    --gradient-warm: linear-gradient(to right, #4da3ff, #2196f3);
    --gradient-card: linear-gradient(135deg, #171717 0%, rgba(59, 130, 246, 0.05) 100%);
    --gradient-bg: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);

    /* Тени */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(59, 130, 246, 0.15);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ===================================
   БАЗОВЫЕ СТИЛИ ЛЕНДИНГА
   =================================== */
.landing-page {
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

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

/* Warm Gradient Text */
.warm-text {
    color: #3b82f6;
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
    font-weight: 800;
}

/* Success Text */
.success-text {
    color: var(--color-success);
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
    font-weight: 800;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }

    .section-subtitle {
        font-size: 1.25rem;
    }
}

/* ===================================
   HEADER / NAVIGATION
   =================================== */
.landing-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    display: none;
}

@media (min-width: 768px) {
    .logo-text {
        display: inline;
    }
}

.header-nav {
    display: none;
    align-items: center;
    gap: 1rem;
}

@media (min-width: 768px) {
    .header-nav {
        display: flex;
    }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-btn:hover span {
    background: var(--color-primary);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu-item {
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-align: center;
    background: var(--bg-secondary);
}

.mobile-menu-item:hover {
    background: var(--bg-tertiary);
    color: var(--color-primary);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    padding: 2rem 0 5rem 0;
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 3px 3px, rgba(59, 130, 246, 0.2) 2px, transparent 0);
    background-size: 35px 35px;
    opacity: 0.5;
    pointer-events: none;
}

/* Эффектное свечение */
.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, rgba(59, 130, 246, 0.1) 50%, transparent 70%);
    filter: blur(60px);
    pointer-events: none;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero-badge {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease 0.1s backwards;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.25rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.125rem;
    }
}

/* Подсветка важного текста */
.highlight-text {
    color: var(--color-success);
    font-size: 1.125rem;
    position: relative;
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

@media (min-width: 768px) {
    .highlight-text {
        font-size: 1.25rem;
    }
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
        gap: 1rem;
    }
}

/* Пульсирующая кнопка */
.pulse-button {
    position: relative;
    animation: buttonPulse 2s ease-in-out infinite;
}

@keyframes buttonPulse {
    0%, 100% {
        box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
    }
    50% {
        box-shadow: 0 0 25px rgba(16, 185, 129, 0.5);
    }
}

/* Улучшенная outline кнопка для hero */
.hero-cta .btn-outline {
    border-width: 2px;
    backdrop-filter: blur(10px);
    background: rgba(59, 130, 246, 0.05);
}

.hero-cta .btn-outline:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

/* Новые компактные фичи */
.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

@media (min-width: 640px) {
    .hero-features {
        gap: 2rem;
    }
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

@media (min-width: 768px) {
    .hero-feature {
        font-size: 1rem;
    }
}

.feature-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: #10b981;
    border-radius: 50%;
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s ease-in-out infinite;
    z-index: 20;
}

.scroll-indicator span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
    color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.scroll-indicator span:hover {
    background: var(--color-primary);
    color: white;
    transform: scale(1.1);
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

@media (max-height: 700px) {
    .scroll-indicator {
        display: none;
    }
}

/* ===================================
   PROBLEM/SOLUTION SECTION
   =================================== */
.problem-section {
    padding: 1rem 0;
    background: var(--bg-secondary);
}

.problem-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

.problem-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.problem-card.problem {
    border-left: 4px solid var(--color-danger);
}

.problem-card.solution {
    border-left: 4px solid var(--color-success);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.problem-card.solution .problem-icon {
    filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.5));
}

.problem-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.problem-card ul {
    list-style: none;
    padding: 0;
}

.problem-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    color: var(--text-secondary);
}

.problem-card li:last-child {
    border-bottom: none;
}

/* ===================================
   FEATURES SECTION
   =================================== */
.features-section {
    padding: 1rem 0;
}

.features-grid {
    display: grid;
    gap: 2rem;
}

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

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   HOW IT WORKS SECTION
   =================================== */
.how-it-works-section {
    padding: 1rem 0;
    background: var(--bg-secondary);
}

.steps-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.step-card {
    position: relative;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.step-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.step-number {
    position: absolute;
    top: -1rem;
    left: 2rem;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: white;
}

.step-content {
    margin-top: 1.5rem;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.step-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   SCREENSHOTS SECTION
   =================================== */
.screenshots-section {
    padding: 1rem 0;
}

.screenshots-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

.screenshot-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    width: 90%;
    max-width: 1200px;
}

@media (min-width: 768px) {
    .screenshot-card {
        width: 80%;
    }
}

.screenshot-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.screenshot-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.screenshot-card:hover img {
    opacity: 0.9;
}

.screenshot-caption {
    padding: 1.5rem;
}

.screenshot-caption h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.screenshot-caption p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===================================
   PRICING SECTION
   =================================== */
.pricing-section {
    padding: 1rem 0;
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.pricing-card {
    position: relative;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.popular {
    border: 2px solid var(--color-primary);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.price-value {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

.pricing-note {
    text-align: center;
    margin-top: 3rem;
    font-size: 1rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

/* ===================================
   INTEGRATION SECTION
   =================================== */
.integration-section {
    padding: 1rem 0;
}

.code-example {
    max-width: 800px;
    margin: 0 auto 3rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.code-language {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.code-copy {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.code-copy:hover {
    background: var(--color-secondary);
}

.code-block {
    padding: 1.5rem;
    margin: 0;
    overflow-x: auto;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.code-block code {
    display: block;
}

.integration-benefits {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .integration-benefits {
        grid-template-columns: repeat(3, 1fr);
    }
}

.integration-benefit {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.benefit-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.benefit-text strong {
    display: block;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.benefit-text p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

/* ===================================
   FAQ SECTION
   =================================== */
.faq-section {
    padding: 1rem 0;
    background: var(--bg-secondary);
}

.faq-grid {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.faq-item {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.faq-answer {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===================================
   FINAL CTA SECTION
   =================================== */
.final-cta-section {
    padding: 1rem 0;
    background: var(--gradient-bg);
    position: relative;
    overflow: hidden;
}

.final-cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 2px 2px, rgba(59, 130, 246, 0.1) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.5;
}

.final-cta-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.final-cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .final-cta-title {
        font-size: 3rem;
    }
}

.final-cta-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.final-cta-buttons {
    margin-bottom: 2.5rem;
}

.final-cta-features {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.final-cta-feature {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ===================================
   FOOTER
   =================================== */
.landing-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1rem 0 0.75rem;
}

.footer-content {
    display: grid;
    gap: 3rem;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--text-muted);
    line-height: 1.8;
    font-size: 0.875rem;
}

.footer-links {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(2, 1fr);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-column a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 0;
    transition: var(--transition);
    font-size: 0.875rem;
}

.footer-column a:hover {
    color: var(--color-primary);
    padding-left: 0.5rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll animations - добавляются через JavaScript */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   УТИЛИТАРНЫЕ КЛАССЫ
   =================================== */

/* Buttons от существующего components.css уже подключены */

/* Дополнительные размеры кнопок */
.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    min-height: 48px;
}

@media (min-width: 768px) {
    .btn-lg {
        padding: 1rem 2rem;
        font-size: 1.125rem;
        min-height: 52px;
    }
}

.btn-block {
    width: 100%;
    display: block;
    text-align: center;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-primary {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-primary);
    border: 1px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
    animation: badgeGlow 2s ease-in-out infinite;
}

@keyframes badgeGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
    }
    50% {
        box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
    }
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
    animation: badgeGlowGreen 2s ease-in-out infinite;
}

@keyframes badgeGlowGreen {
    0%, 100% {
        box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
    }
    50% {
        box-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
    }
}

/* Responsive utilities */
@media (max-width: 767px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 768px) {
    .show-mobile {
        display: none !important;
    }
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--color-primary);
    color: white;
}

::-moz-selection {
    background: var(--color-primary);
    color: white;
}