/* ============================================
   AirComfort Pro — Premium Light Landing Page
   Mobile-First Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;600;700;800;900&display=swap');

:root {
    /* Light Color Palette */
    --bg-page:        #f8f9fc;
    --bg-white:       #ffffff;
    --bg-section:     #f2f4f8;
    --bg-card:        #ffffff;
    --primary:        #1a73e8;
    --primary-light:  #e8f0fe;
    --primary-dark:   #0d47a1;
    --secondary:      #ff6d2e;
    --secondary-light:#fff3ee;
    --accent:         #00bcd4;
    --success:        #2dce89;

    --text-dark:      #1a1a2e;
    --text-body:      #3d4152;
    --text-muted:     #7b8198;
    --text-light:     #a8abbe;

    --border-light:   #e8eaf0;
    --border-mid:     #d0d5e8;

    --shadow-sm:      0 2px 12px rgba(0,0,0,0.06);
    --shadow-md:      0 8px 32px rgba(0,0,0,0.10);
    --shadow-lg:      0 20px 60px rgba(0,0,0,0.14);
    --shadow-blue:    0 8px 32px rgba(26,115,232,0.20);
    --shadow-orange:  0 8px 32px rgba(255,109,46,0.20);

    --gradient-blue:  linear-gradient(135deg, #1a73e8 0%, #00bcd4 100%);
    --gradient-hero:  linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.95) 80%, #ffffff 100%);
    --gradient-card:  linear-gradient(145deg, #ffffff 0%, #f8f9fc 100%);
    --gradient-warm:  linear-gradient(135deg, #ff6d2e 0%, #ff9800 100%);

    --radius-xs:  6px;
    --radius-sm:  12px;
    --radius-md:  18px;
    --radius-lg:  24px;
    --radius-xl:  32px;
    --radius-2xl: 48px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-page);
    color: var(--text-body);
    line-height: 1.7;
    overflow-x: hidden;
}
h1, h2, h3, h4, h5 { font-family: 'Outfit', sans-serif; line-height: 1.2; color: var(--text-dark); }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===== Container ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    padding: 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255,255,255,0.97);
    box-shadow: 0 2px 24px rgba(0,0,0,0.12);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 1.5rem; }
.logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -0.3px;
}
.logo-accent {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-body);
    transition: var(--transition);
    position: relative;
}
.nav-links a:hover { color: var(--primary); }
.nav-cta {
    background: var(--gradient-blue);
    color: #fff !important;
    padding: 10px 28px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: var(--shadow-blue);
    white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(26,115,232,0.35); }
.burger { display: none; flex-direction: column; gap: 5px; padding: 6px; border-radius: 8px; }
.burger span { display: block; width: 24px; height: 2px; background: var(--text-dark); border-radius: 2px; transition: var(--transition); }

/* ===== Hero Section ===== */
.hero {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #000;
}
.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
    z-index: 0;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.15); /* Very light to make the video super sharp and clear */
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 780px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}
.hero h1 {
    font-size: clamp(1.8rem, 5vw, 4.2rem);
    font-weight: 900;
    color: #ffffff;
    letter-spacing: -1px;
    margin-bottom: 22px;
    line-height: 1.15;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8), 0 4px 30px rgba(0, 0, 0, 0.5);
}
.hero h1 .highlight {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none !important;
}
.hero-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}
.hero-stats-bar {
    width: 100%;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    padding: 24px 0;
    position: relative;
    z-index: 5;
}
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-number {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-dark);
    line-height: 1;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 6px; }
.stat-divider { width: 1px; height: 40px; background: var(--border-light); flex-shrink: 0; }


/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1rem;
    padding: 15px 32px;
    border-radius: 100px;
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
}
.btn-primary {
    background: var(--gradient-blue);
    color: #fff;
    box-shadow: var(--shadow-blue);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(26,115,232,0.35); }
.btn-primary:active { transform: translateY(-1px); }
.btn-orange {
    background: var(--gradient-warm);
    color: #fff;
    box-shadow: var(--shadow-orange);
}
.btn-orange:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(255,109,46,0.35); }
.btn-outline {
    background: var(--bg-white);
    border: 1.5px solid var(--border-mid);
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; font-size: 1.05rem; padding: 17px; }
.btn-sm { padding: 11px 22px; font-size: 0.9rem; }
.btn-glow { animation: btnPulse 2.5s ease-in-out infinite; }
@keyframes btnPulse {
    0%, 100% { box-shadow: 0 6px 24px rgba(26,115,232,0.25); }
    50% { box-shadow: 0 10px 40px rgba(26,115,232,0.5); }
}

.gradient-text {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== Trust Bar ===== */
.trust-bar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 0;
    position: relative;
    z-index: 5;
}
.trust-items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 36px;
    flex-wrap: wrap;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-body);
}
.trust-item svg { color: var(--primary); flex-shrink: 0; }

/* ===== Section Commons ===== */
.section { padding: 90px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 6px 18px;
    border-radius: 100px;
    margin-bottom: 14px;
}
.section-title { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 900; margin-bottom: 14px; }
.section-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 540px; margin: 0 auto; }

/* ===== Features ===== */
.features-section { background: var(--bg-page); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-mid); }
.feature-img {
    width: 100%;
    background: #f0f4f8;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    max-height: 280px;
}
.feature-img img {
    width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
    object-position: center;
    transition: transform 0.6s ease;
    display: block;
}
.feature-card:hover .feature-img img { transform: scale(1.04); }
.feature-body { padding: 22px; }
.feature-icon-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.feature-icon {
    width: 42px; height: 42px;
    background: var(--primary-light);
    border-radius: var(--radius-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* ===== Gallery ===== */
.gallery-section { background: var(--bg-white); }
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 280px;
    gap: 14px;
}
.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    background: var(--bg-section);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(26,26,46,0.7) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 18px;
    opacity: 0;
    transition: var(--transition);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay span { font-weight: 600; font-size: 0.9rem; color: #fff; }
.gallery-item-large { grid-column: span 2; grid-row: span 2; }
.gallery-item-tall { grid-row: span 2; }

/* ===== Comparison ===== */
.comparison-section { background: var(--bg-page); }
.comparison-grid {
    display: flex;
    gap: 20px;
    align-items: stretch;
    justify-content: center;
}
.comparison-card {
    flex: 1;
    max-width: 420px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.comparison-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.comparison-card.cold:hover { border-color: rgba(26,115,232,0.3); }
.comparison-card.hot:hover { border-color: rgba(255,109,46,0.3); }
.comparison-visual {
    position: relative;
    overflow: hidden;
    background: var(--bg-section);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
}
.comparison-visual img {
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: contain;
    object-position: center;
    display: block;
}
.temp-badge {
    position: absolute;
    top: 14px; right: 14px;
    padding: 7px 16px;
    border-radius: var(--radius-xs);
    font-weight: 800;
    font-size: 1.1rem;
    font-family: 'Outfit', sans-serif;
    color: #fff;
}
.cold-badge { background: var(--gradient-blue); }
.hot-badge { background: var(--gradient-warm); }
.comparison-body { padding: 28px; }
.comparison-card h3 { font-size: 1.2rem; margin-bottom: 18px; }
.comparison-card ul { list-style: none; }
.comparison-card ul li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.92rem;
    color: var(--text-body);
    display: flex;
    align-items: center;
    gap: 10px;
}
.comparison-card ul li:last-child { border-bottom: none; }
.comparison-card.cold ul li::before { content: '✓'; color: var(--primary); font-weight: 800; flex-shrink: 0; }
.comparison-card.hot ul li::before { content: '✓'; color: var(--secondary); font-weight: 800; flex-shrink: 0; }
.comparison-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.vs-circle {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--gradient-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    font-size: 1rem;
    color: #fff;
    box-shadow: var(--shadow-blue);
    flex-shrink: 0;
}

/* ===== Demo Section ===== */
.demo-section { background: var(--bg-white); }
.demo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}
.demo-card {
    background: var(--bg-page);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.demo-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.demo-media {
    width: 100%;
    overflow: hidden;
    background: #f0f4f8;
    display: flex;
    align-items: center;
    justify-content: center;
}
.demo-media img {
    width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
    display: block;
}
.demo-info { padding: 22px; }
.demo-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 10px;
}
.demo-info h3 { font-size: 1.1rem; margin-bottom: 8px; }
.demo-info p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

.video-showcase {
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
    background: #000;
}
.showcase-video {
    width: 100%;
    height: auto;
    display: block;
    max-height: 540px;
    object-fit: cover;
}
.video-overlay-text {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(0deg, rgba(26,26,46,0.85) 0%, transparent 100%);
    padding: 30px 36px;
}
.video-overlay-text h3 { font-size: 1.4rem; color: #fff; margin-bottom: 6px; }
.video-overlay-text p { color: rgba(255,255,255,0.75); font-size: 0.95rem; }

/* ===== Specs ===== */
.specs-section { background: var(--bg-page); }
.specs-layout { display: flex; gap: 50px; align-items: center; }
.specs-image { flex: 1; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-md); }
.specs-image img { width: 100%; display: block; }
.specs-grid { flex: 1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.spec-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.spec-item:hover { border-color: var(--primary); box-shadow: var(--shadow-blue); transform: translateY(-2px); }
.spec-icon {
    font-size: 1.2rem;
    width: 42px; height: 42px;
    background: var(--primary-light);
    border-radius: var(--radius-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.spec-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 2px; }
.spec-value { font-weight: 700; font-size: 0.92rem; color: var(--text-dark); }

/* ===== Reviews ===== */
.reviews-section { background: var(--bg-white); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}
.review-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--border-mid); }
.review-photo {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 18px;
    background: var(--bg-section);
}
.review-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.review-stars { color: #f5a623; font-size: 1.1rem; letter-spacing: 2px; margin-bottom: 12px; }
.review-text {
    font-size: 0.93rem;
    color: var(--text-body);
    line-height: 1.7;
    flex-grow: 1;
    margin-bottom: 20px;
    font-style: italic;
}
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
    width: 46px; height: 46px;
    border-radius: 50%;
    background: var(--gradient-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: #fff;
    flex-shrink: 0;
    font-family: 'Outfit', sans-serif;
}
.review-avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.review-name { font-weight: 700; font-size: 0.92rem; color: var(--text-dark); }
.review-date { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.review-location { font-size: 0.78rem; color: var(--text-light); display: flex; align-items: center; gap: 4px; }

/* ===== Buy Section ===== */
.buy-section { background: var(--bg-page); }
.buy-layout { display: flex; gap: 50px; align-items: flex-start; }
.buy-info { flex: 1; }
.buy-info h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 900; margin-bottom: 14px; }
.buy-info > p { color: var(--text-muted); margin-bottom: 28px; font-size: 1.05rem; }
.price-display { margin-bottom: 28px; }
.price-old { font-size: 1.1rem; color: var(--text-light); text-decoration: line-through; }
.price-current {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2.8rem, 5vw, 3.8rem);
    font-weight: 900;
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin: 4px 0 6px;
}
.price-save {
    display: inline-block;
    background: #e8f5e9;
    color: #2e7d32;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 100px;
}
.countdown-section { margin-bottom: 28px; }
.countdown-label { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 12px; font-weight: 600; }
.countdown { display: flex; gap: 8px; align-items: center; }
.countdown-item { display: flex; flex-direction: column; align-items: center; }
.countdown-num {
    background: var(--bg-white);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    min-width: 60px;
    text-align: center;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}
.countdown-text { font-size: 0.68rem; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 1px; }
.countdown-sep { font-size: 1.5rem; font-weight: 900; color: var(--text-light); margin-bottom: 16px; }
.buy-guarantees { display: flex; flex-direction: column; gap: 12px; }
.guarantee-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
    color: var(--text-body);
    font-weight: 500;
}
.guarantee-item svg { color: var(--success); flex-shrink: 0; }

/* ===== Buy Form ===== */
.buy-form-wrap { flex: 0 0 420px; }
.buy-form-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-md);
}
.buy-form-card h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; }
.form-note { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; color: var(--text-dark); }
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"] {
    width: 100%;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--border-light);
    background: var(--bg-page);
    color: var(--text-dark);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: var(--transition);
}
.form-group input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px var(--primary-light); }
.quantity-selector {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    width: fit-content;
    background: var(--bg-page);
}
.qty-btn {
    width: 50px; height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: var(--transition);
}
.qty-btn:hover { background: var(--primary-light); color: var(--primary); }
.qty-input {
    width: 65px; height: 50px;
    text-align: center;
    border: none;
    border-left: 1.5px solid var(--border-light);
    border-right: 1.5px solid var(--border-light);
    background: transparent;
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    outline: none;
    -moz-appearance: textfield;
}
.qty-input::-webkit-outer-spin-button, .qty-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.promo-note { margin-top: 8px; font-size: 0.82rem; color: var(--secondary); font-weight: 600; }
.form-secure {
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: center;
    margin-top: 14px;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.form-secure svg { color: var(--success); }

/* ===== Footer ===== */
.footer {
    background: var(--text-dark);
    padding: 60px 0 28px;
}
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p { color: rgba(255,255,255,0.5); margin-top: 14px; font-size: 0.9rem; max-width: 280px; line-height: 1.7; }
.footer-links-group h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px; color: rgba(255,255,255,0.5); margin-bottom: 16px; font-family: 'Inter', sans-serif; }
.footer-links-group a { display: block; color: rgba(255,255,255,0.7); font-size: 0.9rem; padding: 5px 0; transition: var(--transition); }
.footer-links-group a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* ===== Sticky Mobile CTA ===== */
.sticky-cta {
    position: fixed;
    bottom: -100px;
    left: 0; width: 100%;
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    z-index: 999;
    transition: bottom 0.4s ease;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
}
.sticky-cta.visible { bottom: 0; }
.sticky-price { display: flex; flex-direction: column; }
.s-old { font-size: 0.75rem; text-decoration: line-through; color: var(--text-light); }
.s-new { font-size: 1.1rem; font-weight: 900; color: var(--secondary); font-family: 'Outfit', sans-serif; }

/* ===== Lightbox ===== */
.lightbox {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.lightbox.active { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: 90%; max-height: 90vh; border-radius: var(--radius-md); }
.lightbox-close { position: absolute; top: 20px; right: 28px; font-size: 2.5rem; color: #fff; cursor: pointer; z-index: 10001; opacity: 0.8; transition: var(--transition); }
.lightbox-close:hover { opacity: 1; }

/* ===== Mobile-Only Hero Video ===== */
.mobile-hero-video-section { display: none; }

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

/* ===== Hero Scroll Indicator ===== */
.hero-scroll-indicator {
    position: absolute;
    bottom: 28px; left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 3;
    opacity: 0.6;
    animation: scrollBounce 2s ease-in-out infinite;
}
.mouse { width: 24px; height: 38px; border: 2px solid var(--text-muted); border-radius: 12px; display: flex; justify-content: center; padding-top: 8px; }
.wheel { width: 3px; height: 8px; background: var(--primary); border-radius: 3px; animation: scrollWheel 1.5s ease-in-out infinite; }
@keyframes scrollWheel { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(10px); opacity: 0; } }
@keyframes scrollBounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(6px); } }
.hero-scroll-indicator span { font-size: 0.68rem; color: var(--text-muted); letter-spacing: 1.5px; text-transform: uppercase; }

/* ===== Responsive Breakpoints ===== */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; }
    .gallery-item-large { grid-column: span 2; grid-row: span 1; }
    .gallery-item-tall { grid-row: span 1; }
    .buy-layout { flex-direction: column; }
    .buy-form-wrap { flex: auto; width: 100%; max-width: 520px; }
    .specs-layout { flex-direction: column; }
    .demo-grid { grid-template-columns: 1fr; }
    .comparison-grid { flex-direction: column; align-items: center; }
    .comparison-vs { transform: rotate(90deg); }
    .comparison-card { max-width: 100%; width: 100%; }
    .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-content { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .mobile-hero-video-section { display: block; width: 100%; background: #000; line-height: 0; overflow: hidden; }
    .mobile-showcase-video { width: 100%; height: auto; display: block; object-fit: cover; }
    .section { padding: 64px 0; text-align: center; }
    .section-header { margin-bottom: 40px; display: flex; flex-direction: column; align-items: center; text-align: center; }
    .nav-links { display: none; }
    .nav-cta { display: none; }
    .burger { display: flex; }
    .hero { aspect-ratio: 16 / 15; } /* Taller hero section on mobile */
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 68px; left: 0;
        width: 100%;
        height: calc(100vh - 68px);
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        padding: 32px 24px;
        gap: 24px;
        z-index: 999;
        border-top: 1px solid var(--border-light);
        overflow-y: auto;
    }
    .nav-links.open a { font-size: 1.3rem; font-weight: 600; color: var(--text-dark); }
    .nav-links.open .nav-cta {
        display: inline-flex !important;
        margin-top: 8px;
        align-self: flex-start;
        font-size: 1rem;
        color: #fff !important;
        padding: 12px 28px;
    }

    .features-grid { grid-template-columns: 1fr; }
    .feature-card { text-align: center; }
    .feature-icon-row { justify-content: center; }
    .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 180px; }
    .reviews-grid { grid-template-columns: 1fr; }
    .review-card { text-align: center; align-items: center; }
    .review-author { justify-content: center; text-align: left; }
    .hero h1 { font-size: 2.2rem; }
    .hero-stats { flex-wrap: wrap; gap: 20px; padding: 16px 20px; }
    .stat-divider { display: none; }
    .stat { min-width: 80px; }
    .footer-content { grid-template-columns: 1fr; gap: 28px; }
    .specs-grid { grid-template-columns: 1fr; }
    .buy-info { display: flex; flex-direction: column; align-items: center; text-align: center; }
    .countdown { justify-content: center; }
    .buy-guarantees { align-items: center; }
    .buy-info h2 { font-size: 2rem; }
    .buy-section { padding-bottom: 110px; }
    .trust-items { gap: 18px; justify-content: flex-start; padding: 0 4px; }
    .trust-items { flex-direction: column; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .buy-form-card { max-width: 100%; }
    .video-showcase { aspect-ratio: 16/9; }
    .demo-media { height: auto; } /* Auto height to prevent GIF cropping on mobile */
    .review-photo { height: 180px; }

}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 1.8rem; letter-spacing: -0.5px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .btn { padding: 16px 28px; font-size: 1.05rem; }
    .buy-form-card { padding: 22px 18px; }
    .countdown-num { padding: 10px 14px; font-size: 1.3rem; min-width: 54px; }
    .sticky-cta { padding: 14px 16px; }
    .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 240px; }
    .gallery-item-large { grid-column: span 1; }
    .gallery-item-tall { grid-row: span 1; }
    .comparison-card { border-radius: var(--radius-lg); }
    .form-group input[type="text"],
    .form-group input[type="tel"],
    .form-group input[type="email"] { font-size: 1.05rem; padding: 15px; }
}