@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

/* 1. ГЛОБАЛЬНЫЕ ЦВЕТА И ШРИФТЫ */
:root {
    --c-bg: #050B14;
    --c-bg-elevated: #080E1A;
    --c-bg-card: rgba(8, 14, 26, 0.4);
    --c-bg-card-hover: rgba(12, 22, 40, 0.6);
    --c-surface: rgba(255, 255, 255, 0.02);
    --c-border: rgba(6, 182, 212, 0.1);
    --c-border-hover: rgba(6, 182, 212, 0.25);
    
    --c-text-primary: #F8FAFC;
    --c-text-secondary: #CBD5E1;
    --c-text-muted: #64748B;

    --f-family: 'Outfit', 'Inter', -apple-system, sans-serif;
}

/* Применяем глобальный градиентный фон холста */
body {
    background: linear-gradient(to bottom, #050B14 0%, #03070E 40%, #000000 100%) !important;
    font-family: var(--f-family) !important;
    letter-spacing: 0.01em;
}

.hero__content, .hero__visual {
    position: relative;
    z-index: 5 !important; /* Делаем контент выше волны, чтобы кнопки нажимались */
}

/* 2. ТИПОГРАФИКА */
h1, h2, h3, h4, h5, h6 {
    font-weight: 400 !important; /* Ультра-минималистичный Light/Regular стиль */
    letter-spacing: -0.01em !important;
}

.hero__title {
    font-weight: 300 !important;
    letter-spacing: -0.03em !important;
    line-height: 1.15 !important;
}

.hero__subtitle {
    font-weight: 300 !important;
    color: var(--c-text-secondary) !important;
    letter-spacing: 0.02em !important;
    line-height: 1.7 !important;
}

/* Выравнивание по левому краю для разделов на десктопе */
@media (min-width: 992px) {
    .section-header {
        text-align: left !important;
        max-width: 800px !important;
        margin: 0 0 var(--space-12) 0 !important;
    }
}

/* 3. THREE.JS 3D GLASS WAVE */
.hero__wave-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate3d(-50%, -50%, 0);
    width: 100vw;
    height: 700px;
    z-index: 1; /* На переднем плане над фоном, но под текстом */
    pointer-events: none;
    overflow: hidden;
    will-change: transform;
    backface-visibility: hidden;
}

#kinetic-wave-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.kinetic-wave {
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 20%, rgba(6, 182, 212, 0.18) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 50% 40%, rgba(6, 182, 212, 0.08) 0%, transparent 40%);
    filter: blur(80px);
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    animation: waveLiquid 25s ease-in-out infinite alternate;
    transform-origin: center;
}

@keyframes waveLiquid {
    0% {
        transform: scale(0.95) rotate(0deg) translate(0px, 0px);
        border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    }
    50% {
        transform: scale(1.1) rotate(9deg) translate(20px, -40px);
        border-radius: 50% 50% 50% 50% / 40% 60% 40% 60%;
    }
    100% {
        transform: scale(1.0) rotate(-5deg) translate(-25px, 20px);
        border-radius: 60% 40% 60% 40% / 50% 50% 50% 50%;
    }
}

/* 4. КНОПКИ В СТИЛЕ GLASSMORPHISM */
.btn {
    border-radius: 40px !important; /* Более обтекаемые премиальные формы */
}

.btn--primary {
    background: rgba(6, 182, 212, 0.06) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    border: 1px solid rgba(6, 182, 212, 0.3) !important;
    color: var(--c-accent-cyan) !important;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.05) !important;
    position: relative;
    overflow: hidden;
}

.btn--primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(6, 182, 212, 0.1));
    opacity: 0;
    transition: opacity 0.3s;
}

.btn--primary:hover {
    transform: translateY(-2px) !important;
    border-color: rgba(6, 182, 212, 0.6) !important;
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.25) !important;
    color: white !important;
}

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

.btn--ghost {
    background: rgba(255, 255, 255, 0.02) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
}

.btn--ghost:hover {
    border-color: var(--c-border-hover) !important;
    background: rgba(255, 255, 255, 0.05) !important;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-32) 0 var(--space-16);
    overflow: hidden;
}

.hero__inner {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    width: 100% !important;
    max-width: 900px !important;
    margin: 0 auto !important;
    position: relative;
    z-index: 10 !important;
    transform: translateZ(0); /* Выносит текст поверх WebGL слоя */
}

.hero__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.hero__badge {
    margin-left: auto;
    margin-right: auto;
}

.hero__stats {
    justify-content: center !important;
    width: 100%;
}

.problem__card:hover, .metric-card:hover, .industry-card:hover {
    border-color: rgba(6, 182, 212, 0.2) !important;
    transform: translateY(-4px) !important;
    background: rgba(8, 14, 26, 0.35) !important;
}

/* Тонкие разделители вместо толстых плашек */
hr, .hero__stat-divider {
    background: rgba(6, 182, 212, 0.1) !important;
}

/* Минималистичные поля ввода */
.cta-form__input, .cta-form__select {
    background: transparent !important;
    border: none !important;
    border-bottom: 1px solid rgba(6, 182, 212, 0.2) !important;
    border-radius: 0 !important;
    padding: var(--space-3) 0 !important;
    color: white !important;
    transition: border-color 0.3s, box-shadow 0.3s !important;
}

.cta-form__input:focus, .cta-form__select:focus {
    outline: none !important;
    border-bottom-color: var(--c-accent-cyan) !important;
    box-shadow: 0 1px 0 var(--c-accent-cyan) !important;
}

/* Иконки и маркеры */
.checklist-icon--success, .message-badge--success {
    color: var(--c-accent-cyan) !important;
    background: rgba(6, 182, 212, 0.1) !important;
}

/* 5. КАРТОЧКИ (GLASSMORPHIC DARK) */
.problem__card, .metric-card, .industry-card, .pricing__card, .faq__item, .ai-demo__player-box, .ai-demo__analysis, .roi-calc__controls, .roi-calc__results {
    background: rgba(8, 14, 26, 0.25) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    border: 1px solid rgba(6, 182, 212, 0.08) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2) !important;
    transition: border-color 0.3s, transform 0.3s !important;
}

@media (max-width: 768px) {
    .hero__wave-container {
        height: 350px !important;
        top: 45% !important;
    }
    .hero__stats {
        align-items: center !important;
    }
    .hero__stat-divider {
        margin: 8px auto !important;
    }
}

/* ===== ПРЕМИУМ ЭФФЕКТЫ И ДИНАМИКА ===== */

.gradient-text {
    background: linear-gradient(135deg, #06B6D4 0%, #3B82F6 50%, #06B6D4 100%) !important;
    background-size: 200% auto !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    display: inline-block;
    animation: shineGradient 6s linear infinite !important;
}

@keyframes shineGradient {
    0% { background-position: 0% center; }
    50% { background-position: 100% center; }
    100% { background-position: 200% center; }
}

/* Spotlight-подсветка для карточек */
.problem__card, .metric-card, .industry-card, .pricing__card {
    position: relative;
    overflow: hidden;
}

.problem__card::before, .metric-card::before, .industry-card::before, .pricing__card::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: radial-gradient(350px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(6, 182, 212, 0.15), transparent 80%);
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: inherit;
}

.problem__card:hover::before, .metric-card:hover::before, .industry-card:hover::before, .pricing__card:hover::before {
    opacity: 1;
}

/* Все дочерние элементы карточек поднимаем над свечением, чтобы сохранить читаемость */
.problem__card > *, .metric-card > *, .industry-card > *, .pricing__card > * {
    position: relative;
    z-index: 1;
}

/* Классы для анимации прокрутки */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px) translateZ(0);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform, opacity;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0) translateZ(0);
}

/* ===== ИНТЕРАКТИВНЫЕ ТАБЫ ОТРАСЛЕЙ ===== */

.industries-tabs {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--space-8);
    margin-top: var(--space-10);
    align-items: start;
}

@media (max-width: 992px) {
    .industries-tabs {
        grid-template-columns: 1fr;
    }
}

.industries-tabs__nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

@media (max-width: 992px) {
    .industries-tabs__nav {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 12px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }
    
    .industry-tab-btn {
        scroll-snap-align: start;
        flex-shrink: 0;
    }
}

.industry-tab-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: var(--space-3) var(--space-5);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--c-border);
    border-radius: var(--r-xl);
    color: var(--c-text-secondary);
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.industry-tab-btn i {
    font-size: 20px;
    color: var(--c-accent-cyan);
    transition: transform 0.3s;
}

.industry-tab-btn:hover {
    background: rgba(6, 182, 212, 0.04);
    border-color: rgba(6, 182, 212, 0.3);
    color: white;
}

.industry-tab-btn:hover i {
    transform: scale(1.1);
}

.industry-tab-btn.active {
    background: rgba(6, 182, 212, 0.08) !important;
    border-color: var(--c-accent-cyan) !important;
    color: white !important;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.15) !important;
}

.industries-tabs__content-panel {
    background: rgba(8, 14, 26, 0.25);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(6, 182, 212, 0.08);
    border-radius: var(--r-2xl);
    padding: var(--space-8);
    min-height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
}

.industry-content-tab {
    display: none;
    animation: tabFadeIn 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.industry-content-tab.active {
    display: block;
}

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(12px) translateZ(0); }
    to { opacity: 1; transform: translateY(0) translateZ(0); }
}

.industry-tab-badge {
    font-size: var(--f-size-xs);
    font-weight: 700;
    color: var(--c-accent-cyan);
    background: rgba(6, 182, 212, 0.1);
    padding: 3px 8px;
    border-radius: 20px;
    align-self: flex-start;
    margin-bottom: 12px;
}
/* ===== СЕЛЕКТОР ДЕМО-ЗВОНКОВ ===== */

.demo-selector {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.demo-selector__btn {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--c-border);
    border-radius: 30px;
    padding: var(--space-2) var(--space-5);
    color: var(--c-text-secondary);
    font-weight: 500;
    cursor: pointer;
    font-size: var(--f-size-sm);
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.demo-selector__btn:hover {
    border-color: rgba(6, 182, 212, 0.4);
    color: white;
}

.demo-selector__btn.active {
    background: rgba(6, 182, 212, 0.08) !important;
    border-color: var(--c-accent-cyan) !important;
    color: white !important;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.15) !important;
}

/* ===== LIGHT THEME FOR REFINED STYLES ===== */
html[data-theme="light"] {
    --c-bg: #F4F6F9;
    --c-bg-elevated: #E5E9F0;
    --c-bg-card: #FFFFFF;
    --c-bg-card-hover: #ECEFF4;
    --c-border: rgba(15, 23, 42, 0.08);
    --c-border-hover: rgba(15, 23, 42, 0.16);
    --c-text-primary: #0F172A;
    --c-text-secondary: #475569;
}

html[data-theme="light"] body {
    background: #F4F6F9 !important;
    color: #0F172A !important;
}

html[data-theme="light"] .problem__card, 
html[data-theme="light"] .metric-card, 
html[data-theme="light"] .industry-card, 
html[data-theme="light"] .pricing__card, 
html[data-theme="light"] .faq__item, 
html[data-theme="light"] .ai-demo__player-box, 
html[data-theme="light"] .ai-demo__analysis, 
html[data-theme="light"] .roi-calc__controls, 
html[data-theme="light"] .roi-calc__results {
    background: #FFFFFF !important;
    border-color: rgba(15, 23, 42, 0.08) !important;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05) !important;
}

html[data-theme="light"] .problem__card:hover, 
html[data-theme="light"] .metric-card:hover, 
html[data-theme="light"] .industry-card:hover {
    background: #ECEFF4 !important;
    border-color: rgba(6, 182, 212, 0.3) !important;
}

html[data-theme="light"] .cta-form__input, 
html[data-theme="light"] .cta-form__select {
    color: #0F172A !important;
    border-bottom-color: rgba(15, 23, 42, 0.15) !important;
}

html[data-theme="light"] .cta-form__input:focus, 
html[data-theme="light"] .cta-form__select:focus {
    border-bottom-color: var(--c-accent-cyan) !important;
}

html[data-theme="light"] .cta-form__disclaimer, 
html[data-theme="light"] .pricing__note, 
html[data-theme="light"] .steps__preview-wrap {
    color: #64748B !important;
}

html[data-theme="light"] .steps__preview-wrap {
    background: #FFFFFF !important;
    border-color: rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] .header.scrolled {
    background: rgba(255, 255, 255, 0.85) !important;
}

html[data-theme="light"] .hero__floating-card {
    background: rgba(255, 255, 255, 0.9) !important;
    border-color: rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] .btn--primary {
    background: var(--gradient-primary) !important;
    color: white !important;
    border: none !important;
}

html[data-theme="light"] .btn--ghost {
    background: #FFFFFF !important;
    border: 1px solid rgba(15, 23, 42, 0.15) !important;
    color: #0F172A !important;
}
html[data-theme="light"] .btn--ghost:hover {
    background: #ECEFF4 !important;
}

html[data-theme="light"] .demo-selector__btn {
    background: #FFFFFF !important;
    border-color: rgba(15, 23, 42, 0.15) !important;
    color: #475569 !important;
}
html[data-theme="light"] .demo-selector__btn:hover {
    color: #0F172A !important;
}
html[data-theme="light"] .demo-selector__btn.active {
    background: rgba(6, 182, 212, 0.08) !important;
    border-color: var(--c-accent-cyan) !important;
    color: var(--c-accent-cyan) !important;
}

html[data-theme="light"] .step__number {
    background: rgba(6, 182, 212, 0.08) !important;
    color: var(--c-accent-cyan) !important;
}

html[data-theme="light"] #3d-glass-wave {
    mix-blend-mode: normal !important;
}