/* === РЕВОЛЮЦИОННАЯ ГЛАВНАЯ СТРАНИЦА === */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
    transition: all 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === РЕВОЛЮЦИОННЫЙ HERO === */
.revolutionary-hero-home {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.revolutionary-hero-home::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(255,255,255,0.05) 0%, transparent 50%);
    animation: morphBackground 20s ease-in-out infinite;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: floatParticles 15s linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 2s; }
.particle:nth-child(3) { left: 30%; animation-delay: 4s; }
.particle:nth-child(4) { left: 40%; animation-delay: 6s; }
.particle:nth-child(5) { left: 50%; animation-delay: 8s; }
.particle:nth-child(6) { left: 60%; animation-delay: 10s; }
.particle:nth-child(7) { left: 70%; animation-delay: 12s; }
.particle:nth-child(8) { left: 80%; animation-delay: 14s; }

.hero-main-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-badge-revolutionary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 32px;
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.hero-title-revolutionary {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 32px;
    background: linear-gradient(45deg, #ffffff, #f0f9ff, #dbeafe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShine 3s ease-in-out infinite;
}

.hero-subtitle-revolutionary {
    font-size: 1.5rem;
    opacity: 0.95;
    margin-bottom: 48px;
    line-height: 1.7;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions-revolutionary {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.btn-revolutionary-hero {
    padding: 20px 40px;
    border-radius: 16px;
    font-weight: 800;
    font-size: 18px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.btn-primary-hero {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
}

.btn-primary-hero::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;
}

.btn-primary-hero:hover::before {
    left: 100%;
}

.btn-primary-hero:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    color: white;
    text-decoration: none;
}

.btn-secondary-hero {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-secondary-hero:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    transform: translateY(-4px);
}

.hero-stats-revolutionary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.stat-card-revolutionary {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 32px 24px;
    border-radius: 20px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.stat-card-revolutionary:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-number-revolutionary {
    font-size: 3rem;
    font-weight: 900;
    color: #ffd700;
    display: block;
    margin-bottom: 8px;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.stat-label-revolutionary {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 700;
    font-size: 16px;
}

/* === РЕВОЛЮЦИОННАЯ СЕКЦИЯ ВОЗМОЖНОСТЕЙ === */
.features-revolutionary {
    padding: 200px 0 120px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.section-header-revolutionary {
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 24px;
}

.section-title-revolutionary {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #2d3748, #4a5568);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.section-subtitle-revolutionary {
    font-size: 1.25rem;
    color: #ffffff;
    line-height: 1.7;
}

.features-grid-revolutionary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card-revolutionary {
    background: white;
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
    background-size: 200% 100%;
    animation: gradientShift 3s ease-in-out infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card-revolutionary:hover::before {
    opacity: 1;
}

.feature-card-revolutionary:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.12);
}

.feature-icon-revolutionary {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 24px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

.feature-card-revolutionary:hover .feature-icon-revolutionary {
    transform: scale(1.1) rotate(5deg);
}

.feature-title-revolutionary {
    font-size: 1.5rem;
    font-weight: 800;
    color: #2d3748;
    margin-bottom: 16px;
    line-height: 1.3;
}

.feature-description-revolutionary {
    color: #718096;
    line-height: 1.7;
    font-size: 1.05rem;
}

/* === РЕВОЛЮЦИОННЫЕ КУРСЫ === */
.courses-revolutionary {
    padding: 200px 0 120px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.courses-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 70%, rgba(255,255,255,0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(255,255,255,0.08) 0%, transparent 50%);
}

.courses-revolutionary .section-header-revolutionary {
    color: white;
}

.courses-revolutionary .section-title-revolutionary {
    background: linear-gradient(45deg, #ffffff, #f0f9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.courses-revolutionary .section-subtitle-revolutionary {
    color: rgba(255, 255, 255, 0.9);
}

.courses-grid-revolutionary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 2;
}

.course-card-revolutionary {
    background: linear-gradient(145deg,
        rgba(255, 255, 255, 0.12),
        rgba(255, 255, 255, 0.05));
    border-radius: 28px;
    overflow: hidden;
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.course-card-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(102, 126, 234, 0.1) 0%,
        rgba(118, 75, 162, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 0;
}

.course-card-revolutionary:hover {
    transform: translateY(-16px) scale(1.03);
    background: linear-gradient(145deg,
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.1));
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.25),
        0 0 0 2px rgba(255, 255, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.course-card-revolutionary:hover::before {
    opacity: 1;
}

.course-image-revolutionary {
    height: 220px;
    background: linear-gradient(135deg,
        rgba(255, 255, 255, 0.25) 0%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(102, 126, 234, 0.2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.5rem;
    position: relative;
    overflow: hidden;
    border-bottom: 2px solid rgba(255, 255, 255, 0.25);
}

.course-image-revolutionary::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle,
        rgba(255, 255, 255, 0.15) 0%,
        transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translate(-25%, -25%); }
    50% { transform: translate(25%, 25%); }
}

.course-image-revolutionary .course-image-img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 12px;
}

.course-badge-revolutionary {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg,
        #fbbf24 0%,
        #f59e0b 50%,
        #d97706 100%);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow:
        0 4px 16px rgba(251, 191, 36, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    z-index: 10;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); box-shadow: 0 6px 24px rgba(251, 191, 36, 0.6); }
}

.course-content-revolutionary {
    padding: 36px;
    color: white;
    position: relative;
    z-index: 1;
}

.course-title-revolutionary {
    font-size: 1.65rem;
    font-weight: 900;
    margin-bottom: 16px;
    line-height: 1.25;
    color: #ffffff;
    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.2),
        0 4px 16px rgba(102, 126, 234, 0.3);
    letter-spacing: -0.02em;
}

.course-description-revolutionary {
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
    margin-bottom: 24px;
    font-size: 1rem;
    font-weight: 400;
}

.course-meta-revolutionary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    padding: 20px 24px;
    background: linear-gradient(135deg,
        rgba(255, 255, 255, 0.15) 0%,
        rgba(255, 255, 255, 0.08) 100%);
    border-radius: 16px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.course-duration-revolutionary,
.course-lessons-revolutionary {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.course-price-revolutionary {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg,
        #fbbf24 0%,
        #f59e0b 30%,
        #fbbf24 50%,
        #f59e0b 70%,
        #fbbf24 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 100%;
    animation: goldShine 2.5s linear infinite, pricePulse 2s ease-in-out infinite;
    text-shadow: 0 0 40px rgba(251, 191, 36, 0.8);
    filter: drop-shadow(0 4px 16px rgba(251, 191, 36, 0.6)) drop-shadow(0 0 8px rgba(251, 191, 36, 0.4));
    position: relative;
    padding: 8px 0;
    letter-spacing: 1px;
}

@keyframes goldShine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes pricePulse {
    0%, 100% {
        transform: scale(1);
        filter: drop-shadow(0 4px 16px rgba(251, 191, 36, 0.6)) drop-shadow(0 0 8px rgba(251, 191, 36, 0.4));
    }
    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 6px 24px rgba(251, 191, 36, 0.9)) drop-shadow(0 0 16px rgba(251, 191, 36, 0.6));
    }
}

.course-rating-revolutionary {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.course-btn-revolutionary {
    width: 100%;
    background: linear-gradient(135deg,
        rgba(255, 255, 255, 0.25) 0%,
        rgba(255, 255, 255, 0.15) 100%);
    color: white;
    padding: 18px 28px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.05rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow:
        0 4px 16px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.course-btn-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent);
    transition: left 0.5s;
}

.course-btn-revolutionary:hover {
    background: linear-gradient(135deg,
        rgba(255, 255, 255, 0.35) 0%,
        rgba(255, 255, 255, 0.25) 100%);
    transform: translateY(-3px) scale(1.02);
    color: white;
    text-decoration: none;
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.2),
        0 0 0 4px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.course-btn-revolutionary:hover::before {
    left: 100%;
}

.course-btn-revolutionary:active {
    transform: translateY(-1px) scale(0.98);
}

/* === СТАТИСТИКА 3D === */
.stats-3d-revolutionary {
    padding: 120px 0;
    background: #1a202c;
    position: relative;
    overflow: hidden;
}

.stats-3d-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
}

.stats-grid-3d {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 2;
}

.stat-cube-3d {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    perspective: 1000px;
}

.cube {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateCube 20s linear infinite;
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    backdrop-filter: blur(20px);
    font-weight: 800;
}

.cube-front {
    background: rgba(102, 126, 234, 0.3);
    transform: rotateY(0deg) translateZ(100px);
}
.cube-back {
    background: rgba(139, 92, 246, 0.3);
    transform: rotateY(180deg) translateZ(100px);
}
.cube-right {
    background: rgba(236, 72, 153, 0.3);
    transform: rotateY(90deg) translateZ(100px);
}
.cube-left {
    background: rgba(59, 130, 246, 0.3);
    transform: rotateY(-90deg) translateZ(100px);
}

.cube-number {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 8px;
    color: #ffd700;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.cube-label {
    font-size: 14px;
    opacity: 0.9;
}

/* === CTA РЕВОЛЮЦИОННЫЙ === */
.cta-revolutionary {
    padding: 120px 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 50%, #667eea 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-revolutionary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(255,255,255,0.08) 0%, transparent 50%);
}

.cta-content-revolutionary {
    position: relative;
    z-index: 2;
    color: white;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title-revolutionary {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(45deg, #ffffff, #f0f9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-description-revolutionary {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 48px;
    line-height: 1.7;
}

.cta-actions-revolutionary {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

/* === ТЕМНАЯ ТЕМА === */
[data-theme="dark"] .revolutionary-hero-home {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #4a5568 100%);
}

[data-theme="dark"] .features-revolutionary {
    background: linear-gradient(180deg, #1a202c 0%, #2d3748 100%);
}

[data-theme="dark"] .features-revolutionary::before {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1), transparent);
}

[data-theme="dark"] .feature-card-revolutionary {
    background: #2d3748;
    border-color: #4a5568;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .feature-card-revolutionary:hover {
    background: #374151;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .section-title-revolutionary {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="dark"] .section-subtitle-revolutionary {
    color: #a0aec0;
}

[data-theme="dark"] .feature-title-revolutionary {
    color: #f8fafc;
}

[data-theme="dark"] .feature-description-revolutionary {
    color: #a0aec0;
}

[data-theme="dark"] .features-revolutionary {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}

[data-theme="dark"] .courses-revolutionary {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
}

[data-theme="dark"] .stats-3d-revolutionary {
    background: #0f1419;
}

[data-theme="dark"] .cta-revolutionary {
    background: linear-gradient(135deg, #4a5568 0%, #2d3748 50%, #1a202c 100%);
}

/* === АНИМАЦИИ === */
@keyframes morphBackground {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes floatParticles {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

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

@keyframes textShine {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes rotateCube {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    25% { transform: rotateX(0deg) rotateY(90deg); }
    50% { transform: rotateX(0deg) rotateY(180deg); }
    75% { transform: rotateX(0deg) rotateY(270deg); }
    100% { transform: rotateX(0deg) rotateY(360deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

/* === АДАПТИВНОСТЬ === */
@media (max-width: 768px) {
    .hero-title-revolutionary {
        font-size: 2.5rem;
    }

    .hero-subtitle-revolutionary {
        font-size: 1.2rem;
    }

    .hero-actions-revolutionary {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats-revolutionary {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .features-grid-revolutionary {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .courses-grid-revolutionary {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .stats-grid-3d {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .stat-cube-3d,
    .cube,
    .cube-face {
        width: 150px;
        height: 150px;
    }

    .cube-front { transform: rotateY(0deg) translateZ(75px); }
    .cube-back { transform: rotateY(180deg) translateZ(75px); }
    .cube-right { transform: rotateY(90deg) translateZ(75px); }
    .cube-left { transform: rotateY(-90deg) translateZ(75px); }

    .section-title-revolutionary {
        font-size: 2.5rem;
    }

    .cta-title-revolutionary {
        font-size: 2.5rem;
    }

    .cta-actions-revolutionary {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .stats-grid-3d {
        grid-template-columns: 1fr;
    }
}