/* =============================================
   LocalAI Translator — Modern Design 2026
   ============================================= */

/* ============ CSS Variables ============ */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;

    --text: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;

    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-dark: #0f172a;

    --border: #e2e8f0;
    --border-light: #f1f5f9;

    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow: 0 4px 16px rgba(0,0,0,.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,.1);
    --shadow-color: 0 8px 32px rgba(99,102,241,.2);

    --max-width: 1200px;
    --nav-height: 72px;

    --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --transition: 0.2s ease;
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Theme-specific */
    --header-bg: rgba(255, 255, 255, 0.88);
    --header-border: rgba(226, 232, 240, 1);
}

/* ============ Dark Theme ============ */
:root[data-theme="dark"] {
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --text-light: #475569;

    --bg: #0f172a;
    --bg-alt: #1e293b;

    --border: #334155;
    --border-light: #1e293b;

    --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
    --shadow: 0 4px 16px rgba(0,0,0,.3);
    --shadow-lg: 0 20px 40px rgba(0,0,0,.4);
    --shadow-color: 0 8px 32px rgba(99,102,241,.3);

    --header-bg: rgba(15, 23, 42, 0.92);
    --header-border: rgba(51, 65, 85, 1);
}

/* ============ Reset & Base ============ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: var(--font);
    border: none;
    background: none;
}

/* ============ Layout ============ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-label::before {
    content: '';
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    line-height: 1.7;
}

/* ============ Scroll Animation Classes ============ */
.fade-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }
.fade-up.delay-5 { transition-delay: 0.5s; }

/* ============ Header & Navigation ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--header-border);
    transition: box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.125rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
    white-space: nowrap;
    flex-shrink: 0;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu a {
    padding: 8px 14px;
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition), background var(--transition);
}

.nav-menu a:hover {
    color: var(--text);
    background: var(--bg-alt);
}

.nav-menu a.active {
    color: var(--primary-dark);
    background: rgba(99,102,241,.12);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* ============ Theme Toggle ============ */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 13px;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    background: var(--bg);
    transition: all var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
}

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

.theme-toggle-icon {
    font-size: 0.9375rem;
    line-height: 1;
    display: flex;
    align-items: center;
}

.theme-toggle-label {
    font-size: 0.8125rem;
}

.lang-switcher {
    display: flex;
}

.lang-btn {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    background: var(--bg);
    transition: all var(--transition);
}

.lang-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    transition: opacity var(--transition), transform var(--transition);
    white-space: nowrap;
}

.nav-cta:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* ============ Hero Section ============ */
.hero {
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 40%, #312e81 70%, #1e1b4b 100%);
    overflow: hidden;
    padding: 100px 0 80px;
    min-height: 92vh;
    display: flex;
    align-items: center;
}

.hero-bg-orbs {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #6366f1, transparent);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #8b5cf6, transparent);
    bottom: -100px;
    left: 10%;
    animation-delay: 3s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #06b6d4, transparent);
    top: 20%;
    left: 40%;
    animation-delay: 6s;
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99,102,241,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99,102,241,.05) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
    max-width: 860px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px 6px 8px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-full);
    color: rgba(255,255,255,.85);
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 32px;
    backdrop-filter: blur(8px);
}

.hero-badge-dot {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--success), #34d399);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
}

.hero h1 {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: #ffffff;
    margin-bottom: 8px;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 50%, #67e8f9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255,255,255,.7);
    line-height: 1.7;
    max-width: 620px;
    margin: 24px 0 40px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-bottom: 64px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 28px;
    background: white;
    color: var(--primary-dark);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    font-weight: 700;
    transition: all var(--transition);
    box-shadow: 0 0 0 0 rgba(255,255,255,.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(255,255,255,.2);
}

.btn-primary svg {
    flex-shrink: 0;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 15px 28px;
    background: rgba(255,255,255,.1);
    border: 1.5px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.9);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    font-weight: 600;
    transition: all var(--transition);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,.15);
    transform: translateY(-2px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.hero-stat {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius);
    backdrop-filter: blur(8px);
    transition: background var(--transition);
}

.hero-stat:hover {
    background: rgba(255,255,255,.1);
}

.hero-stat-icon {
    font-size: 1.25rem;
    line-height: 1;
}

.hero-stat-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.75rem;
    color: rgba(255,255,255,.55);
    font-weight: 500;
    margin-top: 2px;
}

/* ============ Features Section ============ */
.features {
    padding: 96px 0;
    background: var(--bg-alt);
}

.section-header {
    margin-bottom: 56px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(99,102,241,.1), rgba(139,92,246,.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.625rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ============ Privacy Section ============ */
.privacy-section {
    padding: 96px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

.privacy-section .orb {
    opacity: 0.1;
}

.privacy-section .container {
    position: relative;
    z-index: 1;
}

.privacy-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.privacy-content .section-label {
    color: #a5b4fc;
}

.privacy-content .section-label::before {
    background: #a5b4fc;
}

.privacy-content .section-title {
    color: white;
}

.privacy-content .section-subtitle {
    color: rgba(255,255,255,.65);
}

.privacy-points {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 36px;
}

.privacy-point {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.privacy-point:hover {
    background: rgba(255,255,255,.08);
}

.privacy-point-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(99,102,241,.3), rgba(139,92,246,.3));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.privacy-point-text h3,
.privacy-point-text h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: white;
    margin-bottom: 4px;
    line-height: 1.35;
}

.privacy-point-text p {
    font-size: 0.875rem;
    color: rgba(255,255,255,.55);
    line-height: 1.6;
}

.privacy-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.privacy-shield {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-rings {
    position: absolute;
    inset: 0;
}

.shield-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(99,102,241,.2);
    animation: ringPulse 4s ease-in-out infinite;
}

.shield-ring:nth-child(1) {
    inset: 0;
    animation-delay: 0s;
}

.shield-ring:nth-child(2) {
    inset: 20px;
    animation-delay: 0.5s;
    border-color: rgba(139,92,246,.2);
}

.shield-ring:nth-child(3) {
    inset: 40px;
    animation-delay: 1s;
    border-color: rgba(6,182,212,.2);
}

@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.03); opacity: 0.8; }
}

.shield-core {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    box-shadow: 0 0 60px rgba(99,102,241,.4);
    position: relative;
    z-index: 1;
    animation: shieldGlow 3s ease-in-out infinite;
}

@keyframes shieldGlow {
    0%, 100% { box-shadow: 0 0 60px rgba(99,102,241,.4); }
    50% { box-shadow: 0 0 100px rgba(99,102,241,.6); }
}

/* ============ How It Works ============ */
.how-it-works {
    padding: 96px 0;
    background: var(--bg);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 56px;
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 32px;
    left: calc(16.67% + 16px);
    right: calc(16.67% + 16px);
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0.3;
    pointer-events: none;
}

.step-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    position: relative;
    transition: transform var(--transition), box-shadow var(--transition);
}

.step-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    font-size: 0.8125rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(99,102,241,.4);
}

.step-icon {
    font-size: 2.5rem;
    margin: 8px 0 20px;
    line-height: 1;
}

.step-card h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ============ AI Models Section ============ */
.models-section {
    padding: 96px 0;
    background: var(--bg-alt);
}

.models-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-top: 56px;
}

.model-card {
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.model-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.model-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-color);
}

.model-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.model-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1;
}

.model-card h3 {
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.model-tag {
    font-size: 0.8125rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 24px;
}

.model-specs {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.model-spec {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-alt);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
}

.model-spec-icon {
    font-size: 0.875rem;
}

.model-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.model-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.model-feature-icon {
    width: 20px;
    height: 20px;
    background: rgba(16,185,129,.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    color: var(--success);
    flex-shrink: 0;
}

/* ============ Use Cases ============ */
.use-cases {
    padding: 96px 0;
    background: var(--bg);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 56px;
}

.use-case-card {
    padding: 32px 24px;
    background: var(--bg-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.use-case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    background: var(--bg);
    border-color: var(--border);
}

.use-case-emoji {
    font-size: 2.5rem;
    margin-bottom: 16px;
    line-height: 1;
}

.use-case-card h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.use-case-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ============ Trial Section ============ */
.trial-section {
    padding: 96px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    position: relative;
    overflow: hidden;
}

.trial-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.trial-section .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

.trial-section .section-label {
    color: rgba(255,255,255,.7);
    justify-content: center;
}

.trial-section .section-label::before {
    background: rgba(255,255,255,.7);
}

.trial-section .section-title {
    color: white;
    max-width: 700px;
    margin: 0 auto 16px;
}

.trial-section .section-subtitle {
    color: rgba(255,255,255,.8);
    margin: 0 auto 48px;
    text-align: center;
}

.trial-steps {
    display: flex;
    justify-content: center;
    gap: 0;
    margin: 48px auto;
    max-width: 700px;
}

.trial-step {
    flex: 1;
    padding: 28px 20px;
    background: rgba(255,255,255,.12);
    backdrop-filter: blur(8px);
    text-align: center;
    position: relative;
    border: 1px solid rgba(255,255,255,.15);
}

.trial-step:first-child {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.trial-step:last-child {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.trial-step + .trial-step {
    border-left: none;
}

.trial-step-days {
    font-size: 2.5rem;
    font-weight: 900;
    color: white;
    line-height: 1;
    letter-spacing: -0.03em;
}

.trial-step-days span {
    font-size: 1rem;
    font-weight: 600;
    opacity: 0.75;
    letter-spacing: 0;
}

.trial-step-label {
    font-size: 0.875rem;
    color: rgba(255,255,255,.75);
    margin-top: 6px;
    font-weight: 500;
}

.trial-total {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: rgba(255,255,255,.15);
    border: 1.5px solid rgba(255,255,255,.25);
    border-radius: var(--radius-full);
    color: white;
    font-size: 1rem;
    font-weight: 700;
    backdrop-filter: blur(8px);
    margin-bottom: 36px;
}

.trial-total-badge {
    background: white;
    color: var(--primary-dark);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 800;
}

.trial-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: white;
    color: var(--primary-dark);
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 700;
    transition: all var(--transition);
    box-shadow: 0 8px 32px rgba(0,0,0,.15);
}

.trial-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 48px rgba(0,0,0,.2);
}

/* ============ Languages Section ============ */
.languages-section {
    padding: 72px 0;
    background: var(--bg-alt);
    text-align: center;
}

.languages-marquee-wrapper {
    overflow: hidden;
    margin-top: 40px;
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.languages-marquee {
    display: flex;
    gap: 12px;
    animation: marqueeScroll 25s linear infinite;
    width: max-content;
}

.languages-marquee:hover {
    animation-play-state: paused;
}

@keyframes marqueeScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.lang-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    transition: all var(--transition);
}

.lang-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ============ System Requirements ============ */
.requirements {
    padding: 96px 0;
    background: var(--bg);
}

.requirements-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-top: 56px;
}

.req-card {
    background: var(--bg-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 36px;
}

.req-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.req-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(99,102,241,.1), rgba(139,92,246,.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
}

.req-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
}

.req-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.req-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.req-item-icon {
    width: 22px;
    height: 22px;
    background: rgba(16,185,129,.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--success);
    font-size: 0.75rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.req-item-text {
    flex: 1;
}

.req-item-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.req-item-value {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
}

/* ============ Download CTA ============ */
.download-cta {
    padding: 96px 0;
    background: var(--bg-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download-cta .orb {
    opacity: 0.08;
}

.download-cta .container {
    position: relative;
    z-index: 1;
}

.download-cta .section-label {
    color: rgba(165,180,252,.8);
    justify-content: center;
}

.download-cta .section-label::before {
    background: rgba(165,180,252,.8);
}

.download-cta .section-title {
    color: white;
    max-width: 700px;
    margin: 0 auto 16px;
}

.download-cta .section-subtitle {
    color: rgba(255,255,255,.6);
    margin: 0 auto 48px;
    text-align: center;
}

.store-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.store-badge {
    display: inline-block;
    transition: transform var(--transition), filter var(--transition);
    filter: drop-shadow(0 4px 20px rgba(0,0,0,.3));
}

.store-badge:hover {
    transform: translateY(-4px);
    filter: drop-shadow(0 8px 30px rgba(0,0,0,.4));
}

.store-badge img {
    width: min(186px, 100%);
    height: auto;
    aspect-ratio: 646 / 250;
    border-radius: 12px;
}

.download-note {
    margin-top: 24px;
    font-size: 0.875rem;
    color: rgba(255,255,255,.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.download-note::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--success);
}

/* ============ Legal Links ============ */
.legal-links {
    padding: 72px 0;
    background: var(--bg-alt);
}

.legal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.legal-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

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

.legal-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: rgba(99,102,241,.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.legal-card-text h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}

.legal-card-text p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.legal-card-arrow {
    margin-left: auto;
    color: var(--text-light);
    transition: transform var(--transition), color var(--transition);
    flex-shrink: 0;
}

.legal-card:hover .legal-card-arrow {
    transform: translateX(4px);
    color: var(--primary);
}

/* ============ Footer ============ */
.footer {
    background: var(--bg-dark);
    padding: 48px 0 32px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255,255,255,.08);
    margin-bottom: 28px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 12px;
}

.footer-brand .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 1rem;
}

.footer-brand p {
    font-size: 0.875rem;
    color: rgba(255,255,255,.78);
    max-width: 260px;
    line-height: 1.6;
}

.footer-nav {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.footer-nav-group h4 {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(255,255,255,.82);
    margin-bottom: 16px;
}

.footer-nav-group ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav-group a {
    font-size: 0.9375rem;
    color: rgba(255,255,255,.6);
    transition: color var(--transition);
}

.footer-nav-group a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255,255,255,.72);
}

.footer-bottom a {
    color: rgba(255,255,255,.88);
    text-decoration: underline;
    text-underline-offset: 0.18em;
    transition: color var(--transition), text-decoration-color var(--transition);
}

.footer-bottom a:hover {
    color: white;
    text-decoration-color: white;
}

/* ============ Mobile Menu ============ */
.nav-mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    flex-shrink: 0;
}

.nav-mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ============ Responsive Design ============ */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .privacy-inner {
        grid-template-columns: 1fr;
        gap: 56px;
    }

    .privacy-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg);
        padding: 20px 24px;
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        box-shadow: var(--shadow);
        z-index: 999;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-menu a {
        width: 100%;
        padding: 10px 16px;
    }

    .nav-mobile-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .theme-toggle-label {
        display: none;
    }

    .theme-toggle {
        padding: 6px 10px;
    }

    .hero {
        padding: 72px 0 56px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 8px;
    }

    .hero-stat {
        flex: 1;
        min-width: 130px;
        padding: 10px 14px;
    }

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

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

    .steps-grid::before {
        display: none;
    }

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

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

    .trial-steps {
        flex-direction: column;
        max-width: 300px;
    }

    .trial-step:first-child {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    .trial-step:last-child {
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }

    .trial-step + .trial-step {
        border-left: 1px solid rgba(255,255,255,.15);
        border-top: none;
    }

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

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

    .footer-inner {
        flex-direction: column;
        gap: 32px;
    }

    .footer-nav {
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .hero-stats {
        flex-direction: column;
    }

    .hero-stat {
        width: 100%;
    }

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

    .section-title {
        font-size: 1.625rem;
    }

    .features,
    .privacy-section,
    .how-it-works,
    .models-section,
    .use-cases,
    .trial-section,
    .requirements,
    .download-cta,
    .legal-links {
        padding: 64px 0;
    }
}