/* Premium Glassmorphism Base Styles */
body {
    margin: 0;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow-x: hidden; /* Prevent horizontal scroll from animations */
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section-sm {
    padding: var(--spacing-2xl) 0;
}

.section-lg {
    padding: var(--spacing-4xl) 0;
}

/* Premium Typography */
.heading-1 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.heading-2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.heading-3 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
}

.heading-4 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
}

.text-lg {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

.text-base {
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-secondary);
}

.text-sm {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--text-muted);
}

.text-xs {
    font-size: var(--font-size-xs);
    line-height: var(--line-height-normal);
    color: var(--text-muted);
}

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

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

/* Premium Glassmorphism Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: var(--gradient-button);
    color: var(--text-primary);
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--glass-border);
}

.btn-primary:hover {
    background: var(--button-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-large), var(--shadow-glow);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
    background: var(--button-inactive);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
}

.btn-outline:hover {
    background: var(--glass-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

/* Premium Glassmorphism Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

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

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

.card-lg {
    padding: var(--spacing-2xl);
}

.card-sm {
    padding: var(--spacing-lg);
}

/* Segmented Control (Pill-shaped tabs) */
.segmented-control {
    display: flex;
    background: var(--secondary-bg);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--glass-border);
}

.segmented-control-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-xl);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.segmented-control-btn.active {
    background: var(--button-active);
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-soft);
    transform: scale(1.02);
}

.segmented-control-btn:hover:not(.active) {
    background: var(--button-inactive);
    color: var(--text-primary);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

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

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-start {
    justify-content: flex-start;
}

.justify-end {
    justify-content: flex-end;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.gap-xl {
    gap: var(--spacing-xl);
}

/* Spacing Utilities */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }
.pt-2xl { padding-top: var(--spacing-2xl); }

.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }
.pb-2xl { padding-bottom: var(--spacing-2xl); }

/* Text Alignment */
.text-center {
    text-align: center;
}

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

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

/* Visibility */
.hidden {
    display: none;
}

.visible {
    display: block;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Width */
.w-full {
    width: 100%;
}

/* ===== ОПТИМИЗИРОВАННЫЕ АНИМАЦИИ БЛОКОВ ===== */

/* Базовые анимации появления - ОПТИМИЗИРОВАНЫ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Анимации масштабирования - ОПТИМИЗИРОВАНЫ */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleInUp {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Анимации вращения - ОПТИМИЗИРОВАНЫ */
@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-5deg) scale(0.95);
    }
    to {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

/* Анимации bounce - ОПТИМИЗИРОВАНЫ */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.9);
    }
    50% {
        opacity: 1;
        transform: scale(1.02);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Анимации slide - ОПТИМИЗИРОВАНЫ */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Анимации flip - ОПТИМИЗИРОВАНЫ */
@keyframes flipInX {
    from {
        opacity: 0;
        transform: perspective(400px) rotateX(30deg);
    }
    40% {
        transform: perspective(400px) rotateX(-5deg);
    }
    60% {
        transform: perspective(400px) rotateX(2deg);
    }
    80% {
        transform: perspective(400px) rotateX(-1deg);
    }
    to {
        opacity: 1;
        transform: perspective(400px) rotateX(0deg);
    }
}

@keyframes flipInY {
    from {
        opacity: 0;
        transform: perspective(400px) rotateY(30deg);
    }
    40% {
        transform: perspective(400px) rotateY(-5deg);
    }
    60% {
        transform: perspective(400px) rotateY(2deg);
    }
    80% {
        transform: perspective(400px) rotateY(-1deg);
    }
    to {
        opacity: 1;
        transform: perspective(400px) rotateY(0deg);
    }
}

/* Анимации zoom - ОПТИМИЗИРОВАНЫ */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes zoomInUp {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    50% {
        opacity: 1;
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Анимации pulse - ОПТИМИЗИРОВАНЫ */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: var(--shadow-medium);
    }
    50% {
        box-shadow: var(--shadow-glow);
    }
}

/* Анимации float - ОПТИМИЗИРОВАНЫ */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* Анимации wave - ОПТИМИЗИРОВАНЫ */
@keyframes wave {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-5px);
    }
}

/* Классы анимаций - ОПТИМИЗИРОВАНЫ */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

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

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

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

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

.animate-scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

.animate-scale-in-up {
    animation: scaleInUp 0.8s ease-out forwards;
}

.animate-rotate-in {
    animation: rotateIn 0.8s ease-out forwards;
}

.animate-bounce-in {
    animation: bounceIn 0.8s ease-out forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.8s ease-out forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.8s ease-out forwards;
}

.animate-flip-in-x {
    animation: flipInX 0.8s ease-out forwards;
}

.animate-flip-in-y {
    animation: flipInY 0.8s ease-out forwards;
}

.animate-zoom-in {
    animation: zoomIn 0.6s ease-out forwards;
}

.animate-zoom-in-up {
    animation: zoomInUp 0.8s ease-out forwards;
}

.animate-pulse {
    animation: pulse 3s ease-in-out infinite;
}

.animate-glow {
    animation: glow 3s ease-in-out infinite;
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

.animate-wave {
    animation: wave 2s ease-in-out infinite;
}

/* Классы для задержки анимаций - ОПТИМИЗИРОВАНЫ */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-900 { animation-delay: 0.9s; }
.delay-1000 { animation-delay: 1s; }

/* Классы для длительности анимаций - ОПТИМИЗИРОВАНЫ */
.duration-300 { animation-duration: 0.3s; }
.duration-500 { animation-duration: 0.5s; }
.duration-700 { animation-duration: 0.7s; }
.duration-1000 { animation-duration: 1s; }
.duration-1500 { animation-duration: 1.5s; }
.duration-2000 { animation-duration: 2s; }

/* Классы для easing - ОПТИМИЗИРОВАНЫ */
.ease-linear { animation-timing-function: linear; }
.ease-in { animation-timing-function: ease-in; }
.ease-out { animation-timing-function: ease-out; }
.ease-in-out { animation-timing-function: ease-in-out; }
.ease-bounce { animation-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55); }

/* Классы для повторения анимаций */
.repeat-1 { animation-iteration-count: 1; }
.repeat-2 { animation-iteration-count: 2; }
.repeat-3 { animation-iteration-count: 3; }
.repeat-infinite { animation-iteration-count: infinite; }

/* Классы для направления анимаций */
.reverse { animation-direction: reverse; }
.alternate { animation-direction: alternate; }
.alternate-reverse { animation-direction: alternate-reverse; }

/* Классы для заполнения анимаций */
.forwards { animation-fill-mode: forwards; }
.backwards { animation-fill-mode: backwards; }
.both { animation-fill-mode: both; }

/* Классы для паузы анимаций */
.paused { animation-play-state: paused; }
.running { animation-play-state: running; }

/* Утилиты для анимаций - ОТКЛЮЧЕНЫ */
.animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
}

/* Классы для hover анимаций - ОПТИМИЗИРОВАНЫ */
.hover-lift:hover {
    transform: translateY(-2px) !important;
    transition: transform 0.3s ease-out !important;
}

.hover-scale:hover {
    transform: scale(1.01) !important;
    transition: transform 0.3s ease-out !important;
}

.hover-rotate:hover {
    transform: rotate(1deg) !important;
    transition: transform 0.3s ease-out !important;
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow) !important;
    transition: box-shadow 0.3s ease-out !important;
}

.focus-scale:focus {
    transform: scale(1.02) !important;
    transition: transform 0.2s ease-out !important;
}

.focus-glow:focus {
    box-shadow: var(--shadow-glow) !important;
    transition: box-shadow 0.2s ease-out !important;
}

.active-press:active {
    transform: scale(0.98) !important;
    transition: transform 0.1s ease-out !important;
}

/* Loading анимации - ОПТИМИЗИРОВАНЫ */
.loading-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.loading-pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

.loading-bounce {
    animation: bounce 1s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

/* Stagger анимации - ОПТИМИЗИРОВАНЫ */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

/* Параллакс эффекты - ОПТИМИЗИРОВАНЫ */
.parallax {
    transition: transform 0.1s ease-out;
}

.parallax-slow {
    transition: transform 0.2s ease-out;
}

.parallax-medium {
    transition: transform 0.15s ease-out;
}

.parallax-fast {
    transition: transform 0.05s ease-out;
}

/* 3D эффекты - ОПТИМИЗИРОВАНЫ */
.perspective {
    perspective: 1000px;
    transform-style: preserve-3d;
}

.rotate-3d-x {
    transform: rotateX(0deg);
    transition: transform 0.3s ease-out;
}

.rotate-3d-y {
    transform: rotateY(0deg);
    transition: transform 0.3s ease-out;
}

.rotate-3d-z {
    transform: rotateZ(0deg);
    transition: transform 0.3s ease-out;
}

/* Morph эффекты - ОПТИМИЗИРОВАНЫ */
.morph {
    transition: all 0.3s ease-out;
}

.morph:hover {
    transform: scale(1.05) rotate(2deg);
}

/* Ripple эффекты - ОПТИМИЗИРОВАНЫ */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    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;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Typing эффекты - ОПТИМИЗИРОВАНЫ */
.typing {
    overflow: hidden;
    border-right: 2px solid var(--accent-color);
    white-space: nowrap;
    animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-color); }
}

/* Gradient анимации - ОПТИМИЗИРОВАНЫ */
.gradient-animate {
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

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

/* Neon эффекты - ОПТИМИЗИРОВАНЫ */
.neon {
    animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
    0%, 100% {
        text-shadow: 0 0 5px var(--accent-color);
    }
    50% {
        text-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
    }
}

/* Particle эффекты - ОПТИМИЗИРОВАНЫ */
.particles {
    position: relative;
}

.particles::before,
.particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 3s ease-in-out infinite;
}

.particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particles::after {
    top: 60%;
    right: 15%;
    animation-delay: 1.5s;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Глобальные стили для предотвращения конфликтов */
* {
    box-sizing: border-box;
}

.card,
.feature-card,
.testimonial-card,
.pricing-card,
.stat-card {
    transition: all 0.3s ease-out;
    will-change: transform, opacity;
}

/* Медиа-запросы для мобильных устройств */
@media (max-width: 768px) {
    .hover-lift:hover {
        transform: none !important;
    }
    
    .hover-scale:hover {
        transform: none !important;
    }
    
    .parallax-slow,
    .parallax-medium,
    .parallax-fast {
        transition: none;
    }
    
    .perspective {
        perspective: none;
        transform-style: flat;
    }
}

/* Уважение к настройкам пользователя */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}