/* =========================================
   N4C.VN — GLOBAL DESIGN SYSTEM
   Kế thừa 100% Dark Mode Cyber-tech
   ========================================= */

/* ---------- CSS VARIABLES ---------- */
:root {
    --bg-navy: #0B0B2A;
    --bg-dark: #050514;
    --bg-card: rgba(20, 20, 50, 0.5);
    --trust-blue: #1877F2;
    --neon-cyan: #00E4FF;
    --tiktok-pink: #FF0050;
    --text-white: #ffffff;
    --text-gray: #A2A2C0;
    --text-light: #E0E0E0;
    --border-subtle: rgba(0, 228, 255, 0.1);
    --border-glow: rgba(0, 228, 255, 0.3);
    --max-width: 1440px;
    --nav-height: 70px;
}

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-navy);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: 'Outfit', sans-serif; }

a { color: var(--neon-cyan); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--tiktok-pink); }

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

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 4%; width: 100%; }

/* ---------- UTILITY CLASSES ---------- */
.gradient-text {
    background: linear-gradient(90deg, var(--neon-cyan), var(--tiktok-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-padding { padding: 100px 4%; }
.text-center { text-align: center; }
.text-gray { color: var(--text-gray); }

/* ---------- NAVBAR (Sticky + Glassmorphism) ---------- */
.site-navbar {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 9999;
    padding: 0 5%; height: var(--nav-height);
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(11, 11, 42, 0.6);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 228, 255, 0.15);
    transition: background 0.4s, box-shadow 0.4s;
}
.site-navbar.scrolled {
    background: rgba(5, 5, 20, 0.95);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
}
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo img { height: 50px; border-radius: 8px; }
.nav-logo span { font-family: 'Outfit', sans-serif; font-weight: 800; font-size: 1.8rem; color: #fff; }

.nav-menu { display: flex; align-items: center; gap: 2.5rem; list-style: none; }
.nav-menu a {
    color: var(--text-light); text-decoration: none; font-weight: 500;
    font-size: 1.1rem; padding: 8px 0; position: relative; transition: color 0.3s;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--neon-cyan); }
.nav-menu a.active::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px;
    background: var(--neon-cyan); border-radius: 2px;
}

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a::after { content: ' ▾'; font-size: 0.7rem; }
.dropdown-menu {
    display: none; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
    min-width: 240px; padding: 12px 0; margin-top: 10px;
    background: rgba(15, 15, 40, 0.98); backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow); border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
}
/* Invisible bridge để chống mất hover qua khoảng cách margin 10px */
.dropdown-menu::before {
    content: ''; position: absolute;
    top: -15px; left: 0; right: 0; height: 15px; background: transparent;
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
    display: block; padding: 10px 20px; font-size: 0.9rem; color: var(--text-gray);
}
.dropdown-menu a:hover { color: var(--neon-cyan); background: rgba(0, 228, 255, 0.05); }

/* Nav CTA */
.nav-cta {
    background: var(--tiktok-pink); color: white !important; padding: 10px 22px;
    border-radius: 8px; font-weight: 700; font-size: 0.9rem;
    transition: transform 0.3s, box-shadow 0.3s;
}
.nav-cta:hover {
    transform: translateY(-2px); color: white !important;
    box-shadow: 0 8px 25px rgba(255, 0, 80, 0.4);
}

/* Hamburger (Mobile) */
.nav-hamburger {
    display: none; flex-direction: column; gap: 5px; cursor: pointer;
    background: none; border: none; padding: 5px;
}
.nav-hamburger span {
    width: 28px; height: 2px; background: #fff; transition: 0.3s; border-radius: 2px;
}

/* ---------- SECTION TITLE (Reusable) ---------- */
.section-title {
    text-align: center; margin-bottom: 60px;
}
.section-title h2 {
    font-size: 2.8rem; margin-bottom: 15px; line-height: 1.3;
}
.section-title p {
    color: var(--text-gray); font-size: 1.1rem; max-width: 650px; margin: 0 auto;
}

/* ---------- GRID SYSTEM (Global Reusable Layouts) ---------- */
.grid-2-cols, .grid-3-cols, .grid-4-cols {
    display: grid;
    gap: 30px;
    width: 100%;
}
.grid-2-cols { grid-template-columns: repeat(2, 1fr); }
.grid-3-cols { grid-template-columns: repeat(3, 1fr); }
.grid-4-cols { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-3-cols { grid-template-columns: repeat(2, 1fr); }
    .grid-4-cols { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .grid-2-cols, .grid-3-cols, .grid-4-cols {
        grid-template-columns: 1fr !important;
        gap: 25px !important;
    }
}

/* ---------- CARD STYLE (Reusable) ---------- */
.n4c-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px; overflow: hidden;
    transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s;
}
.n4c-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-cyan);
    box-shadow: 0 15px 40px rgba(0, 228, 255, 0.15);
}

/* ---------- BLOG CARD ---------- */
.blog-card { cursor: pointer; }
.blog-card .card-thumb {
    width: 100%; height: auto !important; aspect-ratio: 16 / 9; object-fit: cover;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.blog-card .card-body { padding: 22px; }
.blog-card .card-category {
    display: inline-block; padding: 4px 12px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 1px; margin-bottom: 12px;
    background: rgba(0, 228, 255, 0.1); color: var(--neon-cyan);
    border: 1px solid rgba(0, 228, 255, 0.2);
}
.blog-card .card-category.mmo { background: rgba(255, 0, 80, 0.1); color: var(--tiktok-pink); border-color: rgba(255, 0, 80, 0.2); }
.blog-card .card-category.affiliate { background: rgba(24, 119, 242, 0.1); color: var(--trust-blue); border-color: rgba(24, 119, 242, 0.2); }
.blog-card .card-category.marketing { background: rgba(255, 165, 0, 0.1); color: #FFA500; border-color: rgba(255, 165, 0, 0.2); }

.blog-card .card-title {
    font-size: 1.15rem; line-height: 1.5; margin-bottom: 10px; color: #fff;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.blog-card .card-desc {
    font-size: 0.9rem; color: var(--text-gray); line-height: 1.6;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    margin-bottom: 15px;
}
.blog-card .card-meta {
    display: flex; align-items: center; gap: 10px; font-size: 0.8rem; color: var(--text-gray);
}
.blog-card .card-meta img {
    width: 28px; height: 28px; border-radius: 50%; object-fit: cover;
}

/* ---------- BUTTONS ---------- */
.btn-primary {
    display: inline-block; padding: 14px 32px; border-radius: 10px;
    font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
    background: linear-gradient(45deg, var(--tiktok-pink), var(--trust-blue));
    color: white; border: none;
    box-shadow: 0 5px 20px rgba(255, 0, 80, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}
.btn-primary:hover {
    transform: translateY(-3px); color: white;
    box-shadow: 0 10px 30px rgba(255, 0, 80, 0.5);
}
.btn-outline {
    display: inline-block; padding: 14px 32px; border-radius: 10px;
    font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
    background: transparent; color: var(--neon-cyan);
    border: 2px solid var(--neon-cyan);
    transition: all 0.3s;
}
.btn-outline:hover {
    background: rgba(0, 228, 255, 0.1); color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 228, 255, 0.2);
}

/* ---------- FOOTER ---------- */
.site-footer {
    padding: 60px 5% 30px;
    background: rgba(5, 5, 20, 0.95);
    border-top: 1px solid var(--border-subtle);
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px; max-width: var(--max-width); margin: 0 auto 50px;
}
.footer-brand p { color: var(--text-gray); font-size: 0.9rem; margin-top: 15px; line-height: 1.7; }
.footer-col h4 { font-size: 1.1rem; margin-bottom: 20px; color: #fff; }
.footer-col a {
    display: block; color: var(--text-gray); font-size: 0.9rem;
    padding: 5px 0; transition: color 0.3s;
}
.footer-col a:hover { color: var(--neon-cyan); }
.footer-bottom {
    text-align: center; padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-gray); font-size: 0.85rem;
}

/* ---------- AMBIENT GLOW BACKGROUNDS ---------- */
.ambient-glow {
    position: relative; overflow: hidden;
}
.ambient-glow::before {
    content: ''; position: absolute; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0, 228, 255, 0.08) 0%, transparent 70%);
    top: -200px; left: -200px; pointer-events: none; z-index: 0;
}
.ambient-glow::after {
    content: ''; position: absolute; width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(255, 0, 80, 0.06) 0%, transparent 70%);
    bottom: -150px; right: -150px; pointer-events: none; z-index: 0;
}
.ambient-glow > * { position: relative; z-index: 1; }

/* ---------- SCROLL ANIMATIONS ---------- */
.animate-hidden {
    opacity: 0; transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.animate-show { opacity: 1; transform: translateY(0); }
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* ---------- FLOATING ACTION BUTTONS ---------- */
.floating-actions {
    position: fixed; bottom: 30px; right: 30px;
    display: flex; flex-direction: column; gap: 15px; z-index: 9999;
}
.fab-btn {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 1.4rem; text-decoration: none;
    cursor: pointer; transition: 0.3s; border: none;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}
.fab-zalo { background: #0088FF; font-weight: bold; font-size: 1.8rem; }
.fab-zalo:hover { background: #0066CC; transform: scale(1.1); }
.fab-top {
    background: rgba(20, 20, 50, 0.8); border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0; pointer-events: none; transform: translateY(20px);
}
.fab-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.fab-top:hover { background: var(--neon-cyan); color: #000; border-color: var(--neon-cyan); }

/* ---------- RESPONSIVE ---------- */

/* === Extra Large: 1440px+ (Full HD, Widescreen) === */
@media (min-width: 1441px) {
    .container { padding: 0 3%; }
    .section-padding { padding: 100px 3%; }
    .site-navbar { padding: 0 3%; }
    .site-footer { padding: 60px 3% 30px; }
    .blog-card .card-thumb { height: 240px; }
    .section-title h2 { font-size: 3rem; }
}

/* === Large Desktop: 1200-1440px === */
@media (max-width: 1440px) {
    .container { padding: 0 4%; }
    .section-padding { padding: 80px 4%; }
}

/* === Desktop/Small Laptop: 1024-1200px === */
@media (max-width: 1200px) {
    .container { padding: 0 4%; }
    .section-title h2 { font-size: 2.4rem; }
    .blog-card .card-thumb { height: 200px; }
    .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
}

/* === Tablet Landscape / iPad Pro: 768-1024px === */
@media (max-width: 1024px) {
    :root { --nav-height: 65px; }
    .container { padding: 0 5%; }
    .section-padding { padding: 70px 5%; }
    .section-title h2 { font-size: 2.2rem; }
    .section-title p { font-size: 1rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .blog-card .card-thumb { height: 180px; }
    .blog-card .card-title { font-size: 1.05rem; }
    .blog-card .card-body { padding: 18px; }
    .btn-primary, .btn-outline { padding: 12px 28px; font-size: 0.95rem; }
    .nav-menu { gap: 1.2rem; }
    .nav-menu a { font-size: 0.88rem; }
    .nav-cta { padding: 8px 18px; font-size: 0.85rem; }
}

/* === Tablet Portrait / iPad: 600-768px === */
@media (max-width: 768px) {
    :root { --nav-height: 60px; }
    .site-navbar { padding: 0 4%; justify-content: center; }
    
    .nav-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .nav-hamburger { 
        display: flex; 
        position: absolute;
        right: 4%;
        top: 50%;
        transform: translateY(-50%);
        z-index: 10000;
    }
    
    .nav-menu {
        display: none; position: fixed; top: var(--nav-height); left: 0;
        width: 100%; height: calc(100vh - var(--nav-height));
        background: rgba(5, 5, 20, 0.98); backdrop-filter: blur(20px);
        flex-direction: column; padding: 20px 5%; gap: 0;
        border-bottom: 1px solid var(--border-glow);
        overflow-y: auto; z-index: 9998;
    }
    .nav-menu.open { display: flex; }
    .nav-menu li { width: 100%; }
    .nav-menu a {
        display: block; padding: 16px 0; font-size: 1.05rem;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .dropdown-menu {
        position: static; transform: none; margin-top: 0;
        border: none; box-shadow: none; background: rgba(10, 10, 30, 0.5);
        padding-left: 20px; min-width: auto;
    }
    .nav-dropdown:hover .dropdown-menu { display: block; }

    .container { padding: 0 5%; }
    .section-padding { padding: 60px 5%; }
    .section-title { margin-bottom: 35px; }
    .section-title h2 { font-size: 1.8rem; }
    .section-title p { font-size: 0.95rem; max-width: 100%; }

    .blog-card .card-thumb { height: 200px; }
    .blog-card .card-title { font-size: 1.1rem; -webkit-line-clamp: 3; }
    .blog-card .card-desc { font-size: 0.88rem; }

    .footer-grid { grid-template-columns: 1fr 1fr; gap: 25px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-col h4 { font-size: 1rem; margin-bottom: 15px; }
    .footer-col a { font-size: 0.85rem; }

    .floating-actions { bottom: 20px; right: 15px; }
    .fab-btn { width: 48px; height: 48px; font-size: 1.2rem; }
}

/* === Mobile Large: 480-600px === */
@media (max-width: 600px) {
    .container { padding: 0 4%; }
    .section-padding { padding: 50px 4%; }
    .section-title h2 { font-size: 1.6rem; }

    .blog-card .card-thumb { height: 180px; }
    .blog-card .card-body { padding: 16px; }
    .blog-card .card-title { font-size: 1rem; }
    .blog-card .card-desc { font-size: 0.85rem; -webkit-line-clamp: 2; }
    .blog-card .card-meta { font-size: 0.75rem; }

    .btn-primary, .btn-outline { padding: 12px 24px; font-size: 0.9rem; width: 100%; text-align: center; }

    .footer-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* === Mobile Small: <480px === */
@media (max-width: 480px) {
    :root { --nav-height: 56px; }
    .site-navbar { padding: 0 3%; }
    .nav-logo img { height: 36px; }
    .nav-logo span { font-size: 1.2rem; }

    .container { padding: 0 4%; }
    .section-padding { padding: 40px 4%; }
    .section-title h2 { font-size: 1.4rem; line-height: 1.4; }
    .section-title p { font-size: 0.9rem; }

    .blog-card .card-thumb { height: 160px; }
    .blog-card .card-body { padding: 14px; }
    .blog-card .card-title { font-size: 0.95rem; }
    .blog-card .card-desc { display: none; }
    .blog-card .card-meta img { width: 24px; height: 24px; }

    .footer-bottom p { font-size: 0.75rem; }
    .floating-actions { bottom: 15px; right: 10px; gap: 10px; }
    .fab-btn { width: 44px; height: 44px; font-size: 1rem; }
}

/* ================================================================
   HOMEPAGE PREMIUM SECTIONS (2026 Upgrade)
   ================================================================ */

/* ---------- HERO ANIMATIONS ---------- */
.hero-bg-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%) scale(1.15); /* Phóng to 15% và căn giữa để giấu logo Veo 3 */
    z-index: 0;
    pointer-events: none;
    object-fit: cover;
}
.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradient tối dần từ trên xuống, màu chủ đạo Dark Navy */
    background: linear-gradient(180deg, rgba(11, 11, 42, 0.6) 0%, rgba(11, 11, 42, 0.95) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-visual-container {
    position: relative;
    text-align: center;
    perspective: 1000px;
}
.hero-logo-animated {
    width: 100%;
    max-width: 800px; /* Thả trần cho phép ảnh bự nhất có thể */
    height: 600px; /* Khung rộng rãi hơn để hiệu ứng scale phát huy tối đa */
    object-fit: contain; 
    object-position: center;
    
    position: relative;
    z-index: 10;
    animation: floatLogo 6s ease-in-out infinite;
    transform-style: preserve-3d;
}
@keyframes floatLogo {
    0%, 100% { transform: translateY(0) rotateX(5deg) rotateY(-5deg) scale(1.35); filter: drop-shadow(0 0 20px rgba(0, 228, 255, 0.4)) drop-shadow(0 0 40px rgba(255, 0, 80, 0.2)); }
    50% { transform: translateY(-20px) rotateX(-5deg) rotateY(5deg) scale(1.35); filter: drop-shadow(0 0 30px rgba(0, 228, 255, 0.6)) drop-shadow(0 0 60px rgba(255, 0, 80, 0.4)); }
}

.hero-visual-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}
.hero-visual-rings::before, .hero-visual-rings::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(0, 228, 255, 0.3);
    animation: pulseRing 4s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}
.hero-visual-rings::before {
    width: 300px; height: 300px;
    animation-delay: 0s;
}
.hero-visual-rings::after {
    width: 400px; height: 400px;
    border-color: rgba(255, 0, 80, 0.2);
    animation-delay: 2s;
}
@keyframes pulseRing {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

.hero-particles {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    pointer-events: none;
}
.particle {
    position: absolute;
    background: var(--neon-cyan);
    border-radius: 50%;
    filter: blur(2px);
    opacity: 0.6;
    animation: floatParticle 10s infinite linear;
}
.particle.p2 { background: var(--tiktok-pink); animation-duration: 15s; animation-direction: reverse; }
.particle.p3 { background: #fff; animation-duration: 8s; }
@keyframes floatParticle {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    20% { opacity: 0.6; }
    80% { opacity: 0.6; }
    100% { transform: translateY(-100px) translateX(50px); opacity: 0; }
}


/* ---------- SOCIAL PROOF BANNER ---------- */
.social-proof-section {
    padding: 50px 5%;
    background: linear-gradient(180deg, rgba(5,5,20,0.6) 0%, rgba(11,11,42,0.4) 100%);
    border-top: 1px solid rgba(0, 228, 255, 0.08);
    border-bottom: 1px solid rgba(0, 228, 255, 0.08);
}
.social-proof-section .section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 40px;
    font-weight: 500;
}
.stats-counter-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-bottom: 45px;
}
.stat-item {
    text-align: center;
    min-width: 120px;
}
.stat-number {
    font-family: 'Outfit', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-cyan), var(--tiktok-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}
.stat-label {
    color: var(--text-gray);
    font-size: 0.85rem;
    margin-top: 6px;
}
.tech-logos-strip {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    opacity: 0.5;
    transition: opacity 0.3s;
}
.tech-logos-strip:hover { opacity: 0.8; }
.tech-logos-strip img {
    height: 32px;
    filter: brightness(0) invert(1);
    opacity: 0.7;
    transition: opacity 0.3s, transform 0.3s;
}
.tech-logos-strip img:hover { opacity: 1; transform: scale(1.15); }

/* ---------- HOW IT WORKS (3 Steps) ---------- */
.steps-section {
    position: relative;
    padding: 100px 5%;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
}
.steps-grid::before {
    content: '';
    position: absolute;
    top: 55px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--tiktok-pink), var(--neon-cyan));
    opacity: 0.3;
    z-index: 0;
}
.step-card {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 30px 20px;
}
.step-number {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: #fff;
    position: relative;
}
.step-number.cyan {
    background: linear-gradient(135deg, rgba(0,228,255,0.2), rgba(0,228,255,0.05));
    border: 2px solid rgba(0,228,255,0.4);
    box-shadow: 0 0 30px rgba(0,228,255,0.15);
}
.step-number.pink {
    background: linear-gradient(135deg, rgba(255,0,80,0.2), rgba(255,0,80,0.05));
    border: 2px solid rgba(255,0,80,0.4);
    box-shadow: 0 0 30px rgba(255,0,80,0.15);
}
.step-number.blue {
    background: linear-gradient(135deg, rgba(24,119,242,0.2), rgba(24,119,242,0.05));
    border: 2px solid rgba(24,119,242,0.4);
    box-shadow: 0 0 30px rgba(24,119,242,0.15);
}
.step-card h4 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: #fff;
}
.step-card p {
    color: var(--text-gray);
    font-size: 0.92rem;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .steps-grid { grid-template-columns: 1fr; gap: 30px; }
    .steps-grid::before { display: none; }
}

/* ---------- PRODUCT DEMO ---------- */
.demo-section { padding: 100px 5%; }
.demo-video-wrapper {
    max-width: 900px;
    margin: 0 auto 50px;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 228, 255, 0.15);
    box-shadow: 0 20px 60px rgba(0, 228, 255, 0.1), 0 0 100px rgba(255, 0, 80, 0.05);
    position: relative;
    background: rgba(5, 5, 20, 0.8);
}
.demo-video-wrapper iframe,
.demo-video-wrapper video {
    width: 100%;
    aspect-ratio: 16/9;
    display: block;
}
.demo-video-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(11,11,42,0.95) 0%, rgba(5,5,20,0.9) 100%);
    cursor: pointer;
    transition: 0.3s;
}
.demo-video-placeholder:hover { background: rgba(11,11,42,0.8); }
.demo-video-placeholder .play-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-cyan), var(--tiktok-pink));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    margin-bottom: 20px;
    box-shadow: 0 0 40px rgba(0, 228, 255, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}
.demo-video-placeholder:hover .play-icon {
    transform: scale(1.1);
    box-shadow: 0 0 60px rgba(0, 228, 255, 0.5);
}
.demo-video-placeholder span {
    color: var(--text-light);
    font-size: 1.1rem;
    font-weight: 600;
}

.demo-screenshots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 900px;
    margin: 0 auto;
}
.demo-screenshot {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s;
    cursor: pointer;
}
.demo-screenshot:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--neon-cyan);
    box-shadow: 0 15px 40px rgba(0, 228, 255, 0.15);
}
.demo-screenshot img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
}
.demo-screenshot .screenshot-label {
    text-align: center;
    padding: 14px 10px;
    font-size: 0.88rem;
    color: var(--text-light);
    background: rgba(5, 5, 20, 0.6);
    font-weight: 500;
}

@media (max-width: 768px) {
    .demo-screenshots-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ---------- TESTIMONIALS ---------- */
.testimonials-section { padding: 100px 5%; }
.testimonials-grid-home {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}
.testimonial-card-home {
    background: rgba(25, 25, 60, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 35px 30px;
    position: relative;
    transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s;
}
.testimonial-card-home:hover {
    transform: translateY(-8px);
    border-color: var(--neon-cyan);
    box-shadow: 0 15px 40px rgba(0, 228, 255, 0.12);
}
.testimonial-quote-icon {
    font-size: 3rem;
    line-height: 1;
    background: linear-gradient(135deg, var(--neon-cyan), var(--tiktok-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    font-family: Georgia, serif;
}
.testimonial-text {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-stars {
    color: #FFD700;
    font-size: 1rem;
    letter-spacing: 2px;
    margin-bottom: 18px;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}
.testimonial-author img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(0, 228, 255, 0.3);
}
.testimonial-author-info h5 {
    color: #fff;
    font-size: 0.95rem;
    margin-bottom: 3px;
}
.testimonial-author-info span {
    color: var(--text-gray);
    font-size: 0.8rem;
}

@media (max-width: 900px) {
    .testimonials-grid-home { grid-template-columns: 1fr; }
}

/* ---------- FAQ ACCORDION ---------- */
.faq-section { padding: 100px 5%; }
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 14px;
    margin-bottom: 14px;
    background: rgba(25, 25, 60, 0.3);
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-item:hover, .faq-item.open {
    border-color: rgba(0, 228, 255, 0.2);
}
.faq-item.open {
    box-shadow: 0 5px 25px rgba(0, 228, 255, 0.08);
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 28px;
    cursor: pointer;
    transition: background 0.3s;
    user-select: none;
}
.faq-question:hover {
    background: rgba(0, 228, 255, 0.03);
}
.faq-question h4 {
    font-size: 1.05rem;
    color: #fff;
    font-weight: 600;
    flex: 1;
    padding-right: 20px;
}
.faq-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(0, 228, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-cyan);
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: transform 0.3s, background 0.3s;
}
.faq-item.open .faq-toggle {
    transform: rotate(45deg);
    background: rgba(0, 228, 255, 0.1);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer {
    max-height: 300px;
}
.faq-answer p {
    padding: 0 28px 22px;
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ---------- NEWSLETTER ---------- */
.newsletter-section {
    padding: 80px 5%;
    background: linear-gradient(135deg, rgba(0,228,255,0.06) 0%, rgba(255,0,80,0.06) 100%);
    border-top: 1px solid rgba(0, 228, 255, 0.08);
}
.newsletter-inner {
    max-width: 650px;
    margin: 0 auto;
    text-align: center;
}
.newsletter-inner h2 {
    font-size: 2rem;
    margin-bottom: 12px;
    color: #fff;
}
.newsletter-inner p {
    color: var(--text-gray);
    font-size: 1rem;
    margin-bottom: 30px;
    line-height: 1.7;
}
.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto 20px;
}
.newsletter-form input[type="email"] {
    flex: 1;
    padding: 14px 20px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(5, 5, 20, 0.6);
    color: #fff;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.3s;
}
.newsletter-form input[type="email"]:focus {
    border-color: var(--neon-cyan);
}
.newsletter-form input[type="email"]::placeholder {
    color: rgba(255, 255, 255, 0.35);
}
.newsletter-form button {
    padding: 14px 28px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, var(--neon-cyan), var(--tiktok-pink));
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    white-space: nowrap;
}
.newsletter-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 228, 255, 0.3);
}
.newsletter-trust {
    color: var(--text-gray);
    font-size: 0.82rem;
}
.newsletter-trust span {
    color: var(--neon-cyan);
    font-weight: 600;
}

@media (max-width: 600px) {
    .newsletter-form { flex-direction: column; }
    .newsletter-form button { width: 100%; }
    .stats-counter-grid { gap: 30px; }
    .stat-number { font-size: 2.2rem; }
}