/* ============================================
   DPTV — Global Design System v2.0
   Modern Dark UI / Enterprise Grade
   ============================================ */

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: #06080f;
    color: #ffffff;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

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

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

button {
    border: none;
    outline: none;
    cursor: pointer;
    font-family: inherit;
    background: none;
}

ul {
    list-style: none;
}

/* ==================================
   DESIGN TOKENS
================================== */

:root {
    /* Primary Colors — Indigo-Violet Gradient */
    --primary: #5B52F5;
    --primary-600: #4F46E5;
    --primary-500: #6D63FF;
    --primary-400: #8B83FF;
    --primary-glow: rgba(91, 82, 245, 0.4);

    /* Accent Colors */
    --accent-cyan: #22D3EE;
    --accent-purple: #A855F7;

    /* Neutrals — Deep Space Palette */
    --surface-900: #06080F;
    --surface-800: #0B0F1A;
    --surface-700: #111629;
    --surface-600: #182036;
    --surface-500: #1F2A44;
    --surface-400: #2A3555;

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.78);
    --text-tertiary: rgba(255, 255, 255, 0.55);
    --text-muted: rgba(255, 255, 255, 0.38);

    /* Border & Divider */
    --border: rgba(255, 255, 255, 0.075);
    --border-hover: rgba(255, 255, 255, 0.15);
    --border-strong: rgba(255, 255, 255, 0.25);

    /* Glass Effect */
    --glass-bg: rgba(17, 22, 41, 0.72);
    --glass-bg-light: rgba(255, 255, 255, 0.04);

    /* Shadow System */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.35);
    --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.45);

    /* Colored Shadows */
    --shadow-primary: 0 8px 28px rgba(91, 82, 245, 0.35);
    --shadow-primary-lg: 0 16px 48px rgba(91, 82, 245, 0.45);

    /* Spacing Scale (4px base) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 80px;
    --space-10: 96px;

    /* Radius Scale */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-3xl: 32px;
    --radius-full: 9999px;

    /* Font Scale */
    --fs-xs: 12px;
    --fs-sm: 13px;
    --fs-base: 15px;
    --fs-md: 16px;
    --fs-lg: 18px;
    --fs-xl: 20px;
    --fs-2xl: 24px;
    --fs-3xl: 30px;
    --fs-4xl: 36px;
    --fs-5xl: 44px;
    --fs-6xl: 56px;
    --fs-7xl: 64px;
    --fs-8xl: 72px;

    /* Font Weight */
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-extrabold: 800;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 150ms;
    --duration-base: 250ms;
    --duration-slow: 400ms;

    /* Layout */
    --container-max: 1240px;
    --header-height: 72px;
}

/* ==================================
   GLOBAL UTILITIES
================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--space-10) 0;
    position: relative;
}

::selection {
    background: rgba(91, 82, 245, 0.4);
    color: #fff;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-900);
}

::-webkit-scrollbar-thumb {
    background: var(--surface-500);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--surface-400);
}

/* ==================================
   HEADER — Glassmorphism
================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    height: var(--header-height);
    transition: all var(--duration-base) var(--ease-out);
}

.header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6, 8, 15, 0.85) 0%, rgba(6, 8, 15, 0.4) 100%);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header .container {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--fs-2xl);
    font-weight: var(--fw-extrabold);
    letter-spacing: -0.02em;
}

.logo img {
    width: 84px;
    height: 42px;
}

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

.nav a {
    position: relative;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: var(--fs-base);
    font-weight: var(--fw-medium);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
    border-radius: 2px;
    transition: width var(--duration-base) var(--ease-out);
}

.nav a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.nav a:hover::after {
    width: calc(100% - 32px);
}

.header-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    color: #fff;
    border-radius: var(--radius-md);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-sm);
    letter-spacing: 0.01em;
    transition: all var(--duration-base) var(--ease-out);
    box-shadow: 0 2px 12px rgba(91, 82, 245, 0.25);
}

.header-download-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(91, 82, 245, 0.4);
}

.header-download-btn:active {
    transform: translateY(0);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    transition: all var(--duration-base) var(--ease-out);
}

.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all var(--duration-base) var(--ease-out);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: rgba(11, 15, 26, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    z-index: 998;
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--duration-slow) var(--ease-out);
}

.mobile-menu.active {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu a {
    display: block;
    padding: 16px 28px;
    color: var(--text-secondary);
    font-size: var(--fs-lg);
    font-weight: var(--fw-medium);
    transition: all var(--duration-fast) var(--ease-out);
}

.mobile-menu a:hover {
    background: rgba(91, 82, 245, 0.1);
    color: var(--text-primary);
    padding-left: 36px;
}

/* ==================================
   HERO — Dramatic Visual
================================== */

.hero {
    position: relative;
    min-height: 100vh;
    padding-top: calc(var(--header-height) + var(--space-9));
    padding-bottom: var(--space-10);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 80%;
    background: radial-gradient(ellipse at center, rgba(91, 82, 245, 0.35) 0%, transparent 65%);
    animation: heroPulse 8s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 50%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(34, 211, 238, 0.18) 0%, transparent 65%);
    animation: heroPulse 10s ease-in-out infinite 2s;
}

@keyframes heroPulse {
    0%, 100% { transform: scale(1) translate(0, 0); opacity: 0.8; }
    50% { transform: scale(1.1) translate(20px, -20px); opacity: 1; }
}

.hero-bg .grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

.hero-container {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 80px;
    align-items: center;
    z-index: 1;
}

.hero-content {
    max-width: 620px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    background: rgba(91, 82, 245, 0.12);
    border: 1px solid rgba(91, 82, 245, 0.28);
    color: var(--primary-400);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    margin-bottom: 28px;
    animation: fadeInDown 0.6s var(--ease-out) both;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero h2 {
    font-size: clamp(40px, 5.5vw, var(--fs-7xl));
    line-height: 1.02;
    font-weight: var(--fw-extrabold);
    letter-spacing: -0.035em;
    margin-bottom: 28px;
    background: linear-gradient(180deg, #fff 0%, rgba(255, 255, 255, 0.85) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.7s var(--ease-out) 0.1s both;
}

.hero h2 span {
    display: block;
    margin-top: 12px;
    background: linear-gradient(135deg, var(--primary-400) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--fs-xl);
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 40px;
    line-height: 1.7;
    animation: fadeInUp 0.7s var(--ease-out) 0.2s both;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
    animation: fadeInUp 0.7s var(--ease-out) 0.3s both;
}

.stat {
    position: relative;
}

.stat + .stat::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 32px;
    background: var(--border);
}

.stat strong {
    display: block;
    font-size: var(--fs-3xl);
    font-weight: var(--fw-extrabold);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.7));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat span {
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 36px;
    animation: fadeInUp 0.7s var(--ease-out) 0.4s both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 100%);
    color: #fff;
    font-weight: var(--fw-semibold);
    font-size: var(--fs-md);
    letter-spacing: 0.01em;
    transition: all var(--duration-base) var(--ease-out);
    box-shadow: 0 4px 20px rgba(91, 82, 245, 0.35);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent);
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-out);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(91, 82, 245, 0.5);
}

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary .download-icon {
    width: 20px;
    height: 20px;
    animation: downloadFloat 2s ease-in-out infinite;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-strong);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    font-weight: var(--fw-medium);
    font-size: var(--fs-md);
    transition: all var(--duration-base) var(--ease-out);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-strong);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    animation: fadeInUp 0.7s var(--ease-out) 0.5s both;
}

.hero-features span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-weight: var(--fw-medium);
}

.hero-features span::before {
    content: '✓';
    color: var(--accent-cyan);
    font-weight: var(--fw-bold);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image::before {
    content: '';
    position: absolute;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(91, 82, 245, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    animation: heroPulse 6s ease-in-out infinite;
}

.hero-image img {
    position: relative;
    max-height: 680px;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 30px 60px rgba(91, 82, 245, 0.3));
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

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

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================================
   SECTION HEADING
================================== */

.section-heading {
    text-align: center;
    margin-bottom: var(--space-9);
}

.section-heading h2 {
    font-size: clamp(32px, 3.5vw, var(--fs-5xl));
    font-weight: var(--fw-extrabold);
    letter-spacing: -0.025em;
    margin-bottom: 16px;
    background: linear-gradient(180deg, #fff 0%, rgba(255, 255, 255, 0.75) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-heading p {
    color: var(--text-tertiary);
    max-width: 640px;
    margin: 0 auto;
    font-size: var(--fs-lg);
    line-height: 1.7;
}

/* ==================================
   SCREENSHOTS
================================== */

.screenshotSwiper {
    padding: 20px 0 64px;
}

.swiper-slide {
    display: flex;
    justify-content: center;
    align-items: center;
}

.swiper-slide img {
    width: 280px;
    border-radius: 28px;
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.5),
        0 0 0 1px var(--border);
    transition: transform var(--duration-base) var(--ease-out);
}

.swiper-slide-active img {
    transform: scale(1.04);
}

.swiper-pagination {
    bottom: 20px !important;
}

.swiper-pagination-bullet {
    width: 8px !important;
    height: 8px !important;
    background: rgba(255, 255, 255, 0.25) !important;
    opacity: 1;
    transition: all var(--duration-base) var(--ease-out);
}

.swiper-pagination-bullet-active {
    width: 24px !important;
    border-radius: 4px !important;
    background: var(--primary-500) !important;
}

/* ==================================
   FEATURES
================================== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.feature-card {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-2xl);
    padding: 40px 32px;
    transition: all var(--duration-slow) var(--ease-out);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-500), transparent);
    opacity: 0;
    transform: scaleX(0);
    transition: all var(--duration-slow) var(--ease-out);
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(91, 82, 245, 0.35);
    background: linear-gradient(135deg, rgba(91, 82, 245, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    box-shadow: 0 16px 48px rgba(91, 82, 245, 0.2), 0 0 0 1px rgba(91, 82, 245, 0.15);
}

.feature-card:hover::before {
    opacity: 1;
    transform: scaleX(1);
}

.feature-icon {
    font-size: 44px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(91, 82, 245, 0.2), rgba(34, 211, 238, 0.1));
    border-radius: var(--radius-xl);
    margin-bottom: 24px;
    transition: transform var(--duration-slow) var(--ease-out);
}

.feature-card:hover .feature-icon {
    transform: scale(1.08);
}

.feature-card h3 {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-tertiary);
    font-size: var(--fs-base);
    line-height: 1.7;
}

/* ==================================
   REVIEWS
================================== */

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.review-card {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.015) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-2xl);
    padding: 36px;
    transition: all var(--duration-base) var(--ease-out);
}

.review-card::before {
    content: '\201C';
    position: absolute;
    top: 20px;
    right: 28px;
    font-size: 80px;
    color: rgba(91, 82, 245, 0.15);
    font-family: Georgia, serif;
    line-height: 1;
}

.review-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    background: linear-gradient(135deg, rgba(91, 82, 245, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.stars {
    color: #FBBF24;
    margin-bottom: 16px;
    font-size: var(--fs-xl);
    letter-spacing: 2px;
}

.review-card p {
    margin-bottom: 20px;
    color: var(--text-secondary);
    font-size: var(--fs-lg);
    line-height: 1.65;
    font-style: italic;
}

.review-card span {
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    letter-spacing: 0.02em;
}

/* ==================================
   DOWNLOAD
================================== */

.download-section {
    padding: var(--space-10) 0;
}

.download-box {
    position: relative;
    background: linear-gradient(135deg, rgba(91, 82, 245, 0.18) 0%, rgba(34, 211, 238, 0.06) 50%, rgba(168, 85, 247, 0.12) 100%);
    border: 1px solid rgba(91, 82, 245, 0.2);
    border-radius: var(--radius-3xl);
    text-align: center;
    padding: 80px 48px;
    overflow: hidden;
}

.download-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top, rgba(91, 82, 245, 0.2), transparent 60%);
    pointer-events: none;
}

.download-box::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-3xl);
    background: linear-gradient(135deg, rgba(91, 82, 245, 0.3), transparent 50%, rgba(34, 211, 238, 0.2));
    z-index: -1;
    opacity: 0.5;
}

.download-box > * {
    position: relative;
}

.download-box h2 {
    font-size: clamp(36px, 4vw, var(--fs-5xl));
    font-weight: var(--fw-extrabold);
    letter-spacing: -0.025em;
    margin-bottom: 16px;
    background: linear-gradient(180deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-box p {
    color: var(--text-secondary);
    font-size: var(--fs-lg);
    margin-bottom: 48px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-bottom: 56px;
}

.download-info div {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    min-width: 140px;
}

.download-info strong {
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
}

.download-info span {
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    letter-spacing: 0.02em;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 22px 56px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 100%);
    color: #fff;
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    letter-spacing: 0.01em;
    margin-bottom: 24px;
    transition: all var(--duration-base) var(--ease-out);
    box-shadow: 0 8px 32px rgba(91, 82, 245, 0.5);
    position: relative;
    overflow: hidden;
}

.btn-download::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 0.6s var(--ease-out);
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 44px rgba(91, 82, 245, 0.6);
}

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

.btn-download:active {
    transform: translateY(0);
}

.btn-download .download-icon {
    width: 26px;
    height: 26px;
    animation: downloadFloat 2s ease-in-out infinite;
}

@keyframes downloadFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

.download-box small {
    display: block;
    color: var(--text-muted);
    font-size: var(--fs-sm);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ==================================
   FAQ
================================== */

.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration-base) var(--ease-out);
    background: rgba(255, 255, 255, 0.02);
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-item.active {
    border-color: rgba(91, 82, 245, 0.3);
    background: rgba(91, 82, 245, 0.04);
}

.faq-question {
    width: 100%;
    padding: 24px 28px;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: all var(--duration-base) var(--ease-out);
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    font-weight: var(--fw-regular);
    color: var(--text-tertiary);
    transition: transform var(--duration-base) var(--ease-out);
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.faq-item.active .faq-question::after {
    content: '−';
    transform: rotate(180deg);
    background: var(--primary);
    color: #fff;
}

.faq-answer {
    display: none;
    padding: 0 28px 24px;
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--fs-base);
    line-height: 1.75;
}

.faq-item.active .faq-answer {
    display: block;
    padding-top: 4px;
}

/* ==================================
   FOOTER
================================== */

.footer {
    padding: 72px 0 48px;
    border-top: 1px solid var(--border);
    text-align: center;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-500), transparent);
}

.footer img {
    width: 72px;
    margin: 0 auto 20px;
}

.footer p {
    color: var(--text-tertiary);
    margin-bottom: 24px;
    font-size: var(--fs-sm);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    transition: all var(--duration-fast) var(--ease-out);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
}

.footer-links a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

/* ==================================
   TABLET (992px)
================================== */

@media (max-width: 992px) {
    .hero {
        padding-top: calc(var(--header-height) + var(--space-7));
        padding-bottom: var(--space-8);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 56px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
        order: 1;
    }

    .hero-image {
        order: 2;
    }

    .hero-image img {
        max-height: 520px;
    }

    .hero-stats,
    .hero-buttons,
    .hero-features {
        justify-content: center;
    }

    .hero h2 {
        font-size: clamp(36px, 6vw, 56px);
    }

    .stat + .stat::before {
        display: none;
    }

    .hero-stats {
        gap: 32px;
    }
}

/* ==================================
   MOBILE (768px)
================================== */

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .container {
        padding: 0 18px;
    }

    .nav,
    .header-download-btn {
        display: none;
    }

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

    .section {
        padding: 72px 0;
    }

    .hero {
        padding-top: calc(var(--header-height) + var(--space-6));
        padding-bottom: var(--space-7);
    }

    .hero-badge {
        font-size: var(--fs-xs);
        padding: 6px 12px;
        margin-bottom: 20px;
    }

    .hero h2 {
        font-size: clamp(30px, 8vw, 42px);
        line-height: 1.1;
        margin-bottom: 20px;
    }

    .hero h2 span {
        margin-top: 8px;
    }

    .hero-description {
        font-size: var(--fs-base);
        margin-bottom: 32px;
        max-width: 100%;
    }

    .hero-stats {
        gap: 20px;
        flex-wrap: wrap;
        margin-bottom: 32px;
    }

    .stat {
        min-width: 90px;
    }

    .stat strong {
        font-size: var(--fs-2xl);
    }

    .stat span {
        font-size: var(--fs-xs);
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 28px;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .btn-primary {
        padding: 18px 28px;
        font-size: var(--fs-md);
    }

    .btn-secondary {
        padding: 16px 28px;
    }

    .hero-features {
        gap: 10px;
        font-size: var(--fs-xs);
    }

    .hero-features span {
        padding: 5px 12px;
    }

    .hero-image img {
        max-height: 400px;
    }

    .hero-image::before {
        width: 240px;
        height: 240px;
    }

    .section-heading {
        margin-bottom: 48px;
    }

    .section-heading h2 {
        font-size: clamp(28px, 7vw, 36px);
    }

    .section-heading p {
        font-size: var(--fs-base);
    }

    .swiper-slide img {
        width: 220px;
    }

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

    .feature-card {
        padding: 28px 24px;
    }

    .feature-icon {
        width: 56px;
        height: 56px;
        font-size: 36px;
    }

    .download-box {
        padding: 48px 24px;
        border-radius: var(--radius-2xl);
    }

    .download-box h2 {
        font-size: clamp(28px, 7vw, 36px);
    }

    .download-box p {
        font-size: var(--fs-base);
        margin-bottom: 36px;
    }

    .download-info {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 40px;
    }

    .download-info div {
        flex-direction: row;
        justify-content: space-between;
        min-width: unset;
        padding: 14px 20px;
    }

    .btn-download {
        width: 100%;
        padding: 20px 32px;
        font-size: var(--fs-xl);
    }

    .faq-question {
        padding: 20px 22px;
        font-size: var(--fs-base);
    }

    .faq-answer {
        padding: 0 22px 20px;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 12px;
    }
}

/* ==================================
   SMALL PHONE (480px)
================================== */

@media (max-width: 480px) {
    .logo span {
        font-size: var(--fs-lg);
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero-description {
        font-size: var(--fs-sm);
    }

    .hero-image img {
        max-height: 320px;
    }

    .hero-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .stat strong {
        font-size: var(--fs-xl);
    }

    .stat span {
        font-size: var(--fs-xs);
    }

    .feature-card {
        padding: 24px 20px;
    }

    .feature-card h3 {
        font-size: var(--fs-xl);
    }

    .download-box h2 {
        font-size: 28px;
    }

    .download-box {
        padding: 36px 20px;
    }

    .btn-download {
        font-size: var(--fs-lg);
        padding: 18px 28px;
    }
}

/* ==================================
   REDUCED MOTION
================================== */

@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;
    }
}