/* ═══════════════════════════════════════════════════════════════════════════
   BACWATER — Premium Stylesheet
   Dark luxury theme with cinematic animations
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
    --primary: #38bdf8;
    --primary-dark: #0ea5e9;
    --primary-deeper: #0284c7;
    --accent: #06b6d4;
    --glow: rgba(56, 189, 248, 0.2);
    --glow-strong: rgba(56, 189, 248, 0.4);

    --bg: #030712;
    --bg-2: #0a0f1e;
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-glass: rgba(15, 23, 42, 0.4);
    --surface: #111827;

    --text: #f1f5f9;
    --text-2: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dim: #475569;

    --border: rgba(148, 163, 184, 0.08);
    --border-light: rgba(148, 163, 184, 0.15);

    --green: #22c55e;
    --whatsapp: #25D366;
    --red: #ef4444;

    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Syne', 'Inter', sans-serif;

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --transition: 0.4s var(--ease);
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; font-size: inherit; }
ul { list-style: none; }
::selection { background: var(--primary-dark); color: white; }

/* ── Utilities ───────────────────────────────────────────────────────────── */
.container { max-width: 1220px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── PRELOADER ───────────────────────────────────────────────────────────── */
.preloader {
    position: fixed; inset: 0; z-index: 9999;
    background: var(--bg);
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-inner { text-align: center; }
.water-drop-loader { width: 50px; margin: 0 auto 20px; }
.drop-svg { width: 100%; }
.drop-path {
    fill: var(--primary);
    opacity: 0.8;
    animation: dropPulse 1.5s ease-in-out infinite;
}
.preloader-text {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 6px;
    color: var(--text);
    animation: preloaderFade 1.5s ease-in-out infinite;
}
@keyframes dropPulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 1; }
}
@keyframes preloaderFade {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* ── POPUP ───────────────────────────────────────────────────────────────── */
.popup-overlay {
    position: fixed; inset: 0; z-index: 8000;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(12px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity 0.4s ease;
    padding: 20px;
}
.popup-overlay.active { opacity: 1; pointer-events: all; }
.popup-card {
    background: linear-gradient(145deg, rgba(15,23,42,0.95), rgba(3,7,18,0.98));
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    position: relative;
    transform: scale(0.85) translateY(30px);
    transition: transform 0.5s var(--ease);
    box-shadow: 0 0 80px rgba(56, 189, 248, 0.1);
}
.popup-overlay.active .popup-card { transform: scale(1) translateY(0); }
.popup-close {
    position: absolute; top: 16px; right: 20px;
    font-size: 1.8rem; color: var(--text-muted);
    transition: var(--transition);
    line-height: 1;
}
.popup-close:hover { color: var(--text); transform: rotate(90deg); }
.popup-icon { font-size: 3rem; margin-bottom: 12px; }
.popup-card h3 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; margin-bottom: 8px; }
.popup-highlight {
    font-size: 1.3rem;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    margin-bottom: 8px;
}
.popup-sub { color: var(--text-muted); margin-bottom: 24px; font-size: 0.95rem; }
.popup-terms { font-size: 0.75rem; color: var(--text-dim); margin-top: 16px; }

/* ── CURSOR GLOW ─────────────────────────────────────────────────────────── */
.cursor-glow {
    position: fixed;
    width: 300px; height: 300px;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}
@media (hover: hover) { .cursor-glow { opacity: 1; } }

/* ── NAVBAR ──────────────────────────────────────────────────────────────── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 5000;
    padding: 18px 0;
    transition: all 0.4s var(--ease);
}
.navbar.scrolled {
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { width: 36px; height: 36px; }
.logo-svg { width: 100%; height: 100%; }
.logo-text {
    font-family: var(--font-display);
    font-size: 1.3rem; font-weight: 800;
    letter-spacing: 3px; color: var(--text);
}
.logo-accent { color: var(--primary); }

/* Nav links */
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link {
    font-size: 0.88rem; font-weight: 500; color: var(--text-muted);
    transition: var(--transition);
    position: relative; padding: 4px 0;
}
.nav-link::after {
    content: ''; position: absolute;
    bottom: -2px; left: 0; width: 0; height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s var(--ease); border-radius: 2px;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-cta { padding: 10px 22px !important; font-size: 0.85rem !important; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 6px; z-index: 5001; }
.hamburger span {
    display: block; width: 24px; height: 2px;
    background: var(--text); border-radius: 2px;
    transition: var(--transition); transform-origin: center;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── BUTTONS ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    font-weight: 600; font-size: 0.95rem;
    padding: 14px 32px; border-radius: var(--radius);
    transition: all 0.3s var(--ease); white-space: nowrap;
    position: relative; overflow: hidden;
}
.btn::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0; transition: opacity 0.3s;
}
.btn:hover::before { opacity: 1; }
.btn-primary {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-deeper));
    color: white;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px var(--glow); }
.btn-outline {
    border: 1.5px solid var(--border-light); color: var(--text);
    background: transparent;
}
.btn-outline:hover {
    border-color: var(--primary); color: var(--primary);
    background: rgba(56, 189, 248, 0.05);
}
.btn-ghost {
    color: var(--text-2); border: 1.5px solid transparent;
}
.btn-ghost:hover { color: var(--primary); border-color: var(--border-light); }
.btn-whatsapp {
    background: var(--whatsapp); color: white;
}
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(37, 211, 102, 0.3); }
.btn-lg { padding: 18px 40px; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }
.btn-block { width: 100%; }
.btn-glow { box-shadow: 0 4px 20px var(--glow); }

/* ── HERO ─────────────────────────────────────────────────────────────────── */
.hero {
    min-height: 100vh; position: relative;
    display: flex; align-items: center;
    overflow: hidden; padding: 120px 0 80px;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg-img {
    width: 100%; height: 100%;
    object-fit: cover; opacity: 0.35;
}
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(3,7,18,0.6) 0%, rgba(3,7,18,0.9) 60%, var(--bg) 100%);
}

/* Particles */
.particles {
    position: absolute; inset: 0; z-index: 1; pointer-events: none;
    overflow: hidden;
}
.particle {
    position: absolute;
    width: 4px; height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat linear infinite;
}
@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    10% { opacity: 0.8; }
    90% { opacity: 0.3; }
    100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

.hero-content {
    position: relative; z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
}
.hero-left { max-width: 580px; }

.hero-badge {
    display: inline-flex; align-items: center; gap: 10px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    padding: 8px 20px; border-radius: 100px;
    font-size: 0.8rem; font-weight: 600;
    color: var(--primary); letter-spacing: 0.5px;
    margin-bottom: 28px;
}
.badge-dot {
    width: 8px; height: 8px;
    background: var(--green); border-radius: 50%;
    animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 6vw, 4.5rem);
    font-weight: 800; line-height: 1.05;
    margin-bottom: 24px;
}
.hero-title .line { display: block; }
.hero-title .line-1 { animation: titleReveal 0.8s var(--ease) 0.2s both; }
.hero-title .line-2 { animation: titleReveal 0.8s var(--ease) 0.35s both; }
.hero-title .line-3 { animation: titleReveal 0.8s var(--ease) 0.5s both; }
.hero-title em {
    font-style: normal;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

@keyframes titleReveal {
    from { opacity: 0; transform: translateY(40px) skewY(2deg); filter: blur(4px); }
    to { opacity: 1; transform: translateY(0) skewY(0); filter: blur(0); }
}

.hero-desc {
    font-size: 1.1rem; color: var(--text-muted);
    margin-bottom: 36px; max-width: 500px;
    animation: fadeUp 0.8s var(--ease) 0.6s both;
}

.hero-ctas {
    display: flex; gap: 16px; flex-wrap: wrap;
    margin-bottom: 50px;
    animation: fadeUp 0.8s var(--ease) 0.7s both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(25px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Trust stats */
.hero-trust {
    display: flex; align-items: center; gap: 28px;
    animation: fadeUp 0.8s var(--ease) 0.8s both;
}
.trust-item { text-align: center; }
.trust-number {
    font-size: 1.6rem; font-weight: 800; color: var(--text);
    display: block;
}
.trust-icon { font-size: 1.6rem; display: block; }
.trust-label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.trust-divider { width: 1px; height: 40px; background: var(--border-light); }

/* Hero product */
.hero-right { display: flex; justify-content: center; align-items: center; }
.hero-product-wrap {
    position: relative; width: 340px; height: 420px;
    display: flex; align-items: center; justify-content: center;
}
.hero-product-img {
    width: 220px; position: relative; z-index: 2;
    filter: drop-shadow(0 20px 60px rgba(56, 189, 248, 0.2));
    animation: productFloat 4s ease-in-out infinite;
}
@keyframes productFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

.product-glow-ring {
    position: absolute;
    width: 300px; height: 300px;
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 50%;
    animation: ringPulse 4s ease-in-out infinite;
}
.ring-2 {
    width: 380px; height: 380px;
    border-color: rgba(56, 189, 248, 0.08);
    animation-delay: 0.5s;
}
@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 1; }
}

.floating-tag {
    position: absolute; z-index: 3;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-light);
    padding: 8px 16px; border-radius: 100px;
    font-size: 0.75rem; font-weight: 700;
    letter-spacing: 1px; color: var(--primary);
    animation: tagFloat 5s ease-in-out infinite;
}
.tag-1 { top: 15%; right: 0; animation-delay: 0s; }
.tag-2 { bottom: 30%; left: -10px; animation-delay: 1s; }
.tag-3 { bottom: 10%; right: 10%; animation-delay: 2s; }
@keyframes tagFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute; bottom: 30px; left: 50%;
    transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    z-index: 2;
}
.scroll-line {
    width: 1px; height: 50px;
    background: linear-gradient(180deg, var(--primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}
.scroll-indicator span {
    font-size: 0.7rem; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 3px;
}

/* ── MARQUEE ─────────────────────────────────────────────────────────────── */
.marquee-section {
    padding: 20px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    background: rgba(56, 189, 248, 0.02);
}
.marquee-track { display: flex; width: max-content; }
.marquee-content {
    display: flex; align-items: center; gap: 40px;
    animation: marquee 25s linear infinite;
    font-family: var(--font-display);
    font-size: 0.85rem; font-weight: 700;
    letter-spacing: 4px; text-transform: uppercase;
    color: var(--text-dim);
    white-space: nowrap;
    padding-right: 40px;
}
.marquee-content .dot { color: var(--primary); font-size: 0.5rem; }
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ── SECTIONS ────────────────────────────────────────────────────────────── */
.section { padding: 120px 0; position: relative; }
.section-label {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 20px;
    font-size: 0.8rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 3px;
    color: var(--primary);
}
.label-line { width: 40px; height: 1px; background: var(--primary); }
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 800; line-height: 1.15;
    margin-bottom: 16px;
}
.section-subtitle {
    color: var(--text-muted); font-size: 1.05rem;
    max-width: 600px; margin-bottom: 50px;
}
.section-subtitle.text-center { margin-left: auto; margin-right: auto; }

/* ── GLASS CARD ──────────────────────────────────────────────────────────── */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease);
}
.glass-card:hover {
    border-color: rgba(56, 189, 248, 0.2);
    box-shadow: 0 8px 40px rgba(56, 189, 248, 0.06);
    transform: translateY(-4px);
}

/* ── ABOUT ────────────────────────────────────────────────────────────────── */
.about { background: var(--bg); }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: start;
}
.about-text p {
    color: var(--text-2); font-size: 1rem;
    margin-bottom: 16px;
}
.about-stats {
    display: flex; gap: 32px; margin-top: 32px;
    padding-top: 32px; border-top: 1px solid var(--border);
}
.about-stat { text-align: center; }
.stat-big {
    font-family: var(--font-display);
    font-size: 1.8rem; font-weight: 800;
    display: block;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-desc { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

.about-features { display: flex; flex-direction: column; gap: 16px; }
.feature-card { padding: 28px 28px; display: flex; gap: 20px; align-items: start; }
.feature-num {
    font-family: var(--font-display);
    font-size: 1.4rem; font-weight: 800;
    color: var(--primary); opacity: 0.5;
    flex-shrink: 0; width: 36px;
}
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; }

/* ── USES ─────────────────────────────────────────────────────────────────── */
.uses {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 50%, var(--bg) 100%);
}
.uses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.use-card { padding: 36px 28px; text-align: center; }
.use-icon { font-size: 2.4rem; margin-bottom: 16px; }
.use-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.use-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

.uses-note {
    display: flex; align-items: start; gap: 16px;
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: var(--radius); padding: 20px 24px;
    margin-top: 40px;
}
.note-icon { font-size: 1.4rem; flex-shrink: 0; }
.uses-note p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* ── PRODUCT SHOWCASE ────────────────────────────────────────────────────── */
.product-section {
    background: var(--bg);
}
.product-showcase {
    display: grid; grid-template-columns: 1fr 1.3fr;
    gap: 60px; align-items: center;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px;
    backdrop-filter: blur(16px);
}
.showcase-image {
    display: flex; justify-content: center;
    background: linear-gradient(135deg, rgba(56,189,248,0.03), rgba(6,182,212,0.03));
    border-radius: var(--radius-lg); padding: 40px;
}
.showcase-image img { max-height: 300px; filter: drop-shadow(0 10px 40px var(--glow)); }
.showcase-tag {
    display: inline-block;
    font-size: 0.75rem; font-weight: 700;
    letter-spacing: 3px; color: var(--primary);
    margin-bottom: 12px;
}
.showcase-info h2 {
    font-family: var(--font-display);
    font-size: 2rem; font-weight: 800; margin-bottom: 12px;
}
.showcase-desc { color: var(--text-muted); margin-bottom: 28px; font-size: 0.95rem; }
.spec-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 12px; margin-bottom: 28px;
}
.spec {
    display: flex; justify-content: space-between;
    padding: 12px 16px;
    background: rgba(56, 189, 248, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.85rem;
}
.spec-label { color: var(--text-dim); }
.spec-val { color: var(--text); font-weight: 600; }

/* ── PRICING ─────────────────────────────────────────────────────────────── */
.pricing { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.price-card {
    padding: 36px 28px; text-align: center;
    position: relative; display: flex; flex-direction: column;
}
.price-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 60px rgba(56, 189, 248, 0.08);
    background: linear-gradient(180deg, rgba(56,189,248,0.06), var(--bg-glass));
}
.price-card.bulk-card {
    border-color: rgba(167, 139, 250, 0.3);
    background: linear-gradient(180deg, rgba(167,139,250,0.05), var(--bg-glass));
}
.popular-tag, .bulk-tag {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    padding: 6px 20px; border-radius: 100px;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 1px; white-space: nowrap;
}
.popular-tag {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    color: white;
}
.bulk-tag {
    background: linear-gradient(135deg, #8b5cf6, #a78bfa);
    color: white;
}
.price-qty {
    font-size: 0.85rem; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 1px;
}
.price-amount {
    font-family: var(--font-display);
    font-size: 2.8rem; font-weight: 800;
    margin: 12px 0 4px;
}
.price-per { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 24px; }
.save { color: var(--green); font-weight: 700; }
.price-features {
    text-align: left; flex: 1;
    margin-bottom: 24px;
}
.price-features li {
    padding: 8px 0; font-size: 0.9rem; color: var(--text-muted);
    display: flex; align-items: center; gap: 10px;
}
.check { color: var(--green); font-weight: 700; flex-shrink: 0; }

.custom-order {
    text-align: center; margin-top: 40px;
    padding: 20px;
    border: 1px dashed var(--border-light);
    border-radius: var(--radius);
}
.custom-order p { color: var(--text-muted); font-size: 0.95rem; }
.custom-order-link { color: var(--whatsapp); font-weight: 700; text-decoration: underline; }

/* ── HOW IT WORKS ────────────────────────────────────────────────────────── */
.how-it-works { background: var(--bg); }
.steps-grid {
    display: flex; align-items: center; justify-content: center; gap: 20px;
}
.step-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px; text-align: center;
    flex: 1; max-width: 320px;
    transition: all 0.4s var(--ease);
}
.step-card:hover {
    border-color: rgba(56, 189, 248, 0.2);
    transform: translateY(-4px);
}
.step-num {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display);
    font-size: 1.2rem; font-weight: 800; color: white;
    margin: 0 auto 16px;
}
.step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 0.9rem; color: var(--text-muted); }
.step-connector {
    font-size: 1.5rem; color: var(--text-dim);
    flex-shrink: 0;
    animation: connectorPulse 2s ease-in-out infinite;
}
@keyframes connectorPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; color: var(--primary); }
}

/* ── TESTIMONIALS ────────────────────────────────────────────────────────── */
.testimonials { background: var(--bg-2); }
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.testimonial-card { padding: 32px; }
.stars { color: #fbbf24; font-size: 1rem; letter-spacing: 2px; margin-bottom: 16px; }
.testimonial-card p {
    color: var(--text-2); font-size: 0.95rem; line-height: 1.7;
    margin-bottom: 20px; font-style: italic;
}
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.8rem; color: white;
}
.reviewer strong { display: block; font-size: 0.95rem; }
.reviewer span { display: block; font-size: 0.8rem; color: var(--text-dim); }

/* ── FAQ ──────────────────────────────────────────────────────────────────── */
.faq { background: var(--bg); }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden; transition: var(--transition);
}
.faq-item.active { border-color: rgba(56, 189, 248, 0.2); }
.faq-q {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    padding: 20px 24px;
    font-size: 1rem; font-weight: 600; color: var(--text);
    text-align: left; transition: var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-toggle {
    font-size: 1.4rem; color: var(--primary);
    transition: var(--transition); flex-shrink: 0; margin-left: 16px;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.faq-a p { padding: 0 24px 20px; color: var(--text-muted); line-height: 1.7; }

/* ── CONTACT / CTA ───────────────────────────────────────────────────────── */
.contact { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }
.cta-block {
    text-align: center;
    background: linear-gradient(145deg, rgba(56,189,248,0.06), rgba(6,182,212,0.03));
    border: 1px solid rgba(56, 189, 248, 0.1);
    border-radius: var(--radius-xl);
    padding: 80px 48px;
}
.cta-block h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800; margin-bottom: 16px;
}
.cta-block p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-actions { margin-bottom: 32px; }
.cta-info { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; }
.cta-info-item { color: var(--text-dim); font-size: 0.9rem; }

/* ── FOOTER ──────────────────────────────────────────────────────────────── */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px; margin-bottom: 40px;
}
.footer-brand p { color: var(--text-dim); font-size: 0.88rem; margin-top: 14px; max-width: 260px; line-height: 1.6; }
.footer-col h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.5px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a, .footer-col li { color: var(--text-dim); font-size: 0.88rem; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
    border-top: 1px solid var(--border); padding-top: 24px; text-align: center;
}
.footer-bottom p { color: var(--text-dim); font-size: 0.8rem; }

/* ── WHATSAPP FAB ────────────────────────────────────────────────────────── */
.whatsapp-fab {
    position: fixed; bottom: 28px; right: 28px;
    width: 56px; height: 56px;
    background: var(--whatsapp);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
    z-index: 4000;
    transition: all 0.3s var(--ease);
    animation: fabBounce 3s ease-in-out infinite;
}
.whatsapp-fab:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5); }
@keyframes fabBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* ── BACK TO TOP ─────────────────────────────────────────────────────────── */
.back-to-top {
    position: fixed; bottom: 96px; right: 30px;
    width: 44px; height: 44px;
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    z-index: 4000;
    opacity: 0; pointer-events: none;
    transition: all 0.3s var(--ease);
}
.back-to-top.visible { opacity: 1; pointer-events: all; }
.back-to-top:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

/* ── SCROLL REVEAL ───────────────────────────────────────────────────────── */
.reveal-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── RESPONSIVE ──────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-left { max-width: 100%; margin: 0 auto; }
    .hero-ctas { justify-content: center; }
    .hero-trust { justify-content: center; }
    .hero-right { order: -1; }
    .hero-product-wrap { width: 260px; height: 320px; }
    .hero-product-img { width: 160px; }
    .about-grid { grid-template-columns: 1fr; }
    .product-showcase { grid-template-columns: 1fr; }
    .showcase-image { max-height: 250px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }
    .nav-links {
        position: fixed; top: 0; right: -100%;
        width: 280px; height: 100vh; height: 100dvh;
        background: rgba(3, 7, 18, 0.98);
        backdrop-filter: blur(24px);
        flex-direction: column; justify-content: center;
        gap: 20px; padding: 40px;
        border-left: 1px solid var(--border);
        transition: right 0.4s var(--ease);
        z-index: 5000;
    }
    .nav-links.active { right: 0; }
    .nav-link { font-size: 1.1rem; }

    .section { padding: 80px 0; }
    .uses-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .steps-grid { flex-direction: column; }
    .step-connector { transform: rotate(90deg); }
    .spec-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-info { flex-direction: column; gap: 12px; }
    .about-stats { flex-direction: column; gap: 16px; }
    .scroll-indicator { display: none; }
    .floating-tag { display: none; }
}

@media (max-width: 480px) {
    .hero { padding: 100px 0 60px; }
    .hero-title { font-size: 2.2rem; }
    .hero-desc { font-size: 1rem; }
    .hero-ctas { flex-direction: column; align-items: center; }
    .hero-ctas .btn { width: 100%; max-width: 300px; }
    .hero-trust { flex-direction: column; gap: 16px; }
    .trust-divider { width: 40px; height: 1px; }
    .popup-card { padding: 36px 24px; }
    .cta-block { padding: 48px 24px; }
    .product-showcase { padding: 28px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOTION LAYER — premium animation pass
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Scroll progress bar ─────────────────────────────────────────────────── */
.scroll-progress {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, #7dd3fc, var(--primary) 45%, #0891b2);
    transform: scaleX(0); transform-origin: 0 50%;
    z-index: 6000; pointer-events: none;
    box-shadow: 0 0 18px var(--glow-strong);
    will-change: transform;
}

/* ── Ambient aurora mesh ─────────────────────────────────────────────────── */
.aurora {
    position: fixed; inset: 0; z-index: 0;
    pointer-events: none; overflow: hidden;
    filter: blur(90px); opacity: 0.55;
}
.aurora-blob {
    position: absolute; display: block;
    border-radius: 50%;
    mix-blend-mode: screen;
}
.blob-1 {
    width: 46vw; height: 46vw; top: -12vw; left: -8vw;
    background: radial-gradient(circle at 30% 30%, rgba(56, 189, 248, 0.5), transparent 68%);
    animation: blobDrift 26s ease-in-out infinite;
}
.blob-2 {
    width: 40vw; height: 40vw; top: 38%; right: -12vw;
    background: radial-gradient(circle at 60% 40%, rgba(6, 182, 212, 0.42), transparent 68%);
    animation: blobDrift 32s ease-in-out infinite reverse;
}
.blob-3 {
    width: 36vw; height: 36vw; bottom: -10vw; left: 26%;
    background: radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.32), transparent 68%);
    animation: blobDrift 38s ease-in-out infinite 4s;
}
@keyframes blobDrift {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
    33%      { transform: translate3d(6vw, 5vh, 0) scale(1.14); }
    66%      { transform: translate3d(-5vw, -4vh, 0) scale(0.92); }
}

/* Film grain — kills gradient banding, adds depth */
.grain {
    position: fixed; inset: -50%;
    z-index: 1; pointer-events: none; opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: grainShift 0.9s steps(4) infinite;
}
@keyframes grainShift {
    0%   { transform: translate(0, 0); }
    25%  { transform: translate(-2%, 1%); }
    50%  { transform: translate(1%, -2%); }
    75%  { transform: translate(-1%, -1%); }
    100% { transform: translate(2%, 1%); }
}

/* Keep real content above the ambience */
/* NB: only the flow sections — never the fixed overlays, which must keep
   position: fixed (forcing them relative drops them into the page flow). */
.hero, .section, .footer, .marquee-section { position: relative; z-index: 2; }
.navbar { z-index: 4000; }

/* ── Logo ────────────────────────────────────────────────────────────────── */
.logo-mark { width: 40px; height: 40px; flex-shrink: 0; }
.logo-text { display: block; line-height: 1; white-space: nowrap; }
.logo-sub { display: block; }
.logo-accent {
    background: linear-gradient(120deg, #7dd3fc, #38bdf8 45%, #0891b2);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}
.logo-sub {
    font-size: 0.52rem; font-weight: 600; letter-spacing: 2.4px;
    color: var(--text-dim); margin-top: 4px;
    -webkit-text-fill-color: var(--text-dim);
}
.logo-ring { transform-origin: 50% 50%; animation: logoSpin 18s linear infinite; }
.logo-node { animation: nodePulse 3s ease-in-out infinite; }
.logo-wave { animation: waveSlide 3.4s linear infinite; }
@keyframes logoSpin   { to { transform: rotate(360deg); } }
@keyframes nodePulse  { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes waveSlide  { from { transform: translateX(0); } to { transform: translateX(28px); } }
.logo:hover .logo-ring { animation-duration: 4s; }

/* ── Buttons: magnetic pull + shine sweep ────────────────────────────────── */
.btn {
    --magX: 0px; --magY: 0px;
    overflow: hidden;
    transform: translate3d(var(--magX), var(--magY), 0);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.3s, color 0.3s;
}
.btn-primary:hover { transform: translate3d(var(--magX), calc(var(--magY) - 2px), 0); }
.btn-glow::after {
    content: ''; position: absolute; inset: 0;
    border-radius: inherit;
    background: linear-gradient(105deg, transparent 38%, rgba(255,255,255,0.45) 50%, transparent 62%);
    transform: translateX(-130%);
    transition: transform 0.75s var(--ease);
    pointer-events: none;
}
.btn-glow:hover::after { transform: translateX(130%); }
.btn-sent { transform: scale(0.96) !important; }

/* ── 3D tilt cards + cursor spotlight ────────────────────────────────────── */
.tilt {
    --rx: 0deg; --ry: 0deg; --mx: 50%; --my: 50%;
    transform-style: preserve-3d;
    transition: transform 0.5s var(--ease), border-color 0.4s, box-shadow 0.5s var(--ease);
}
@media (hover: hover) {
    .tilt:hover {
        transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateZ(6px);
        box-shadow: 0 24px 60px rgba(2, 8, 23, 0.55), 0 0 0 1px rgba(56, 189, 248, 0.14);
    }
}
.glass-card { position: relative; overflow: hidden; }
.glass-card::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(56, 189, 248, 0.10), transparent 62%);
    opacity: 0; transition: opacity 0.4s var(--ease);
    pointer-events: none;
}
.glass-card:hover::after { opacity: 1; }

/* ── Hero product: pointer tilt + scroll drift ───────────────────────────── */
.hero-product-wrap {
    --tiltX: 0deg; --tiltY: 0deg; --driftX: 0px; --scrollShift: 0px;
    transform: perspective(1000px)
               rotateX(var(--tiltX)) rotateY(var(--tiltY))
               translate3d(var(--driftX), var(--scrollShift), 0);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}
.hero-product-img {
    /* transparent-PNG vial: cool rim light instead of a flat drop shadow */
    filter: drop-shadow(0 26px 50px rgba(2, 8, 23, 0.75))
            drop-shadow(0 0 32px rgba(56, 189, 248, 0.30));
}
.hero-bg-img { will-change: transform; }

/* Liquid shimmer sweeping across the vial */
.hero-product-wrap::after {
    content: ''; position: absolute; z-index: 3;
    width: 220px; height: 100%; left: 50%; top: 0;
    transform: translateX(-50%);
    background: linear-gradient(100deg, transparent 40%, rgba(255,255,255,0.14) 50%, transparent 60%);
    animation: vialShine 5.5s ease-in-out infinite;
    pointer-events: none;
    -webkit-mask-image: radial-gradient(ellipse 45% 60% at 50% 55%, #000 55%, transparent 80%);
    mask-image: radial-gradient(ellipse 45% 60% at 50% 55%, #000 55%, transparent 80%);
}
@keyframes vialShine {
    0%, 100% { transform: translateX(-50%) translateX(-120px); opacity: 0; }
    45%      { opacity: 1; }
    70%      { transform: translateX(-50%) translateX(120px); opacity: 0; }
}

/* ── Marquee pause on hover ──────────────────────────────────────────────── */
.marquee-section.paused .marquee-content { animation-play-state: paused; }

/* ── HOW-TO (reconstitution guide) ───────────────────────────────────────── */
.howto {
    margin-top: 56px; padding: 44px;
    border-radius: var(--radius-xl);
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.72), rgba(3, 7, 18, 0.55));
    border: 1px solid var(--border-light);
    backdrop-filter: blur(14px);
    position: relative; overflow: hidden;
}
.howto::before {
    content: ''; position: absolute; top: -40%; left: -10%;
    width: 60%; height: 180%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.10), transparent 62%);
    animation: blobDrift 24s ease-in-out infinite;
    pointer-events: none;
}
.howto-head { position: relative; margin-bottom: 32px; }
.howto-tag {
    display: inline-block; font-size: 0.7rem; font-weight: 800;
    letter-spacing: 2.5px; color: var(--primary); margin-bottom: 10px;
}
.howto-head h3 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; margin-bottom: 6px; }
.howto-head p { color: var(--text-muted); font-size: 0.95rem; }
.howto-steps {
    position: relative; list-style: none;
    display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 22px;
}
.howto-steps li { display: flex; gap: 14px; align-items: flex-start; }
.howto-n {
    flex-shrink: 0; width: 32px; height: 32px; border-radius: 10px;
    display: grid; place-items: center;
    font-family: var(--font-display); font-weight: 800; font-size: 0.9rem;
    color: var(--bg);
    background: linear-gradient(135deg, #7dd3fc, var(--primary));
    box-shadow: 0 6px 20px var(--glow);
}
.howto-steps strong { display: block; font-size: 0.95rem; margin-bottom: 4px; }
.howto-steps p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ── Promise cards ───────────────────────────────────────────────────────── */
.promise-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.promise-card { padding: 34px 28px; }
.promise-icon {
    font-size: 1.9rem; margin-bottom: 16px;
    display: inline-grid; place-items: center;
    width: 56px; height: 56px; border-radius: 16px;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid var(--border-light);
    animation: iconBob 4.5s ease-in-out infinite;
}
.promise-card:nth-child(2) .promise-icon { animation-delay: 0.4s; }
.promise-card:nth-child(3) .promise-icon { animation-delay: 0.8s; }
.promise-card:nth-child(4) .promise-icon { animation-delay: 1.2s; }
@keyframes iconBob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.promise-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.promise-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; }

/* ── Sticky mobile buy bar ───────────────────────────────────────────────── */
.sticky-buy {
    position: fixed; left: 0; right: 0; bottom: 0;
    display: none; align-items: center; justify-content: space-between;
    gap: 14px; padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: rgba(3, 7, 18, 0.92);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-light);
    z-index: 4500;
    transform: translateY(110%);
    transition: transform 0.45s var(--ease);
}
.sticky-buy.visible { transform: translateY(0); }
.sticky-info { display: flex; flex-direction: column; line-height: 1.25; }
.sticky-price { font-family: var(--font-display); font-size: 1.3rem; font-weight: 800; color: var(--text); }
.sticky-label { font-size: 0.68rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.sticky-cta { padding: 13px 22px; font-size: 0.85rem; white-space: nowrap; }

/* ── Popup polish ────────────────────────────────────────────────────────── */
.popup-card { position: relative; overflow: hidden; }
.popup-card::before {
    content: ''; position: absolute; top: -60%; left: -20%;
    width: 140%; height: 160%;
    background: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.18), transparent 60%);
    pointer-events: none;
}
.popup-icon { animation: rocketPop 2.4s ease-in-out infinite; display: inline-block; }
@keyframes rocketPop {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50%      { transform: translateY(-8px) rotate(-8deg); }
}
body.popup-open, body.nav-open { overflow: hidden; }

/* ── Gradient text sweep ─────────────────────────────────────────────────── */
.gradient-text {
    background-size: 220% auto;
    animation: gradientSweep 6s ease infinite;
}
@keyframes gradientSweep {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}

/* ── Section label line grow ─────────────────────────────────────────────── */
.label-line { transform-origin: left; transform: scaleX(0); transition: transform 0.8s var(--ease) 0.25s; }
.reveal-up.revealed .label-line { transform: scaleX(1); }

/* ── Price card emphasis ─────────────────────────────────────────────────── */
.price-card.featured { animation: featuredGlow 4s ease-in-out infinite; }
@keyframes featuredGlow {
    0%, 100% { box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.20), 0 20px 50px rgba(2, 8, 23, 0.45); }
    50%      { box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.42), 0 24px 70px rgba(56, 189, 248, 0.16); }
}
.popular-tag, .bulk-tag { animation: tagFloat 3.5s ease-in-out infinite; }

/* ── FAQ ─────────────────────────────────────────────────────────────────── */
.faq-q { transition: color 0.3s, background 0.3s; }
.faq-item { transition: border-color 0.4s var(--ease), background 0.4s var(--ease); }
.faq-item.active { background: rgba(56, 189, 248, 0.03); }

/* ── Preloader ───────────────────────────────────────────────────────────── */
.preloader-text { animation: fadePulse 1.6s ease-in-out infinite; }
@keyframes fadePulse { 0%, 100% { opacity: 0.45; } 50% { opacity: 1; } }

/* ── RESPONSIVE (motion layer) ───────────────────────────────────────────── */
@media (max-width: 1024px) {
    .howto-steps { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
}
@media (max-width: 768px) {
    .sticky-buy { display: flex; }
    .whatsapp-fab { bottom: 96px; }
    .back-to-top { bottom: 96px; }
    .aurora { filter: blur(70px); opacity: 0.4; }
    .grain { display: none; }
    .howto { padding: 28px 22px; }
    .howto-steps { grid-template-columns: 1fr; gap: 18px; }
    .howto-head h3 { font-size: 1.3rem; }
    .logo-sub { display: none; }
    .promise-grid { grid-template-columns: 1fr; }
    .hero-product-wrap::after { display: none; }
    .scroll-progress { height: 2px; }
}
@media (max-width: 480px) {
    .sticky-price { font-size: 1.1rem; }
    .sticky-cta { padding: 12px 16px; font-size: 0.78rem; }
    .howto { padding: 24px 18px; }
}

/* ── Accessibility: honour reduced-motion ────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    .aurora, .grain, .particles { display: none; }
    .reveal-up { opacity: 1; transform: none; }
    .label-line { transform: scaleX(1); }
}

/* ── Small-screen refinements ────────────────────────────────────────────── */
@media (max-width: 560px) {
    .logo-mark { width: 30px; height: 30px; }
    .logo-text { font-size: 1.02rem; letter-spacing: 1.6px; }
    .logo { gap: 8px; }
    .nav-container { gap: 10px; }
    .hero-badge {
        font-size: 0.68rem; padding: 7px 14px; gap: 7px;
        letter-spacing: 0.2px; max-width: 100%;
        white-space: normal; text-align: center; line-height: 1.4;
    }
    .marquee-content { font-size: 0.95rem; }
    .section-title { font-size: 1.9rem; }
    .container { padding: 0 18px; }
}
@media (max-width: 380px) {
    .logo-text { font-size: 0.92rem; letter-spacing: 1px; }
    .hero-title { font-size: 1.95rem; }
}

/* ── Overflow guards ─────────────────────────────────────────────────────── */
/* .hero is a flex container and .container is its item: without min-width:0 the
   item refuses to shrink below its min-content width and spills past the viewport. */
.hero > .container { flex: 1 1 100%; min-width: 0; }
.hero-content > *, .about-grid > *, .product-showcase > * { min-width: 0; }

/* Off-canvas menu: translate instead of `right: -100%` so a fixed element can't
   extend the document's scroll width on mobile. */
@media (max-width: 768px) {
    .nav-links {
        right: 0;
        transform: translateX(100%);
        transition: transform 0.4s var(--ease);
    }
    .nav-links.active { right: 0; transform: translateX(0); }
}
html { overflow-x: clip; }

@media (max-width: 560px) {
    /* Rings were wider than a phone screen — scale the whole halo down. */
    .hero-product-wrap { width: 230px; height: 300px; }
    .product-glow-ring { width: 210px; height: 210px; }
    .ring-2 { width: 268px; height: 268px; }
    .hero-product-img { width: 140px; }
}

/* ── Mobile hero: don't let the product eat the whole first screen ───────── */
@media (max-width: 768px) {
    .hero { min-height: auto; padding: 96px 0 56px; }
    .hero-content { gap: 24px; }
}
@media (max-width: 560px) {
    .hero-product-wrap { width: 200px; height: 240px; }
    .product-glow-ring { width: 180px; height: 180px; }
    .ring-2 { width: 228px; height: 228px; }
    .hero-product-img { width: 124px; }
}

/* ── Hero title must never outrun a narrow phone ─────────────────────────── */
/* "Bacteriostatic" is the widest word on the page; size it off viewport width. */
@media (max-width: 560px) {
    .hero-title { font-size: clamp(1.25rem, 7.15vw, 2.4rem); letter-spacing: -0.5px; }
    .section-title { font-size: clamp(1.5rem, 7.4vw, 2.2rem); }
    .hero-desc { font-size: 0.98rem; }
    .about-text h2 { word-break: normal; overflow-wrap: break-word; }
}

/* ── Feature card: num | (title over body), not three columns in a row ───── */
.feature-card {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 18px; row-gap: 4px;
    align-items: start;
}
.feature-card .feature-num { grid-column: 1; grid-row: 1 / span 2; }
.feature-card h3 { grid-column: 2; grid-row: 1; }
.feature-card p  { grid-column: 2; grid-row: 2; }

/* ── Sticky buy bar on narrow phones ─────────────────────────────────────── */
@media (max-width: 480px) {
    .sticky-buy { gap: 10px; padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); }
    .sticky-label { font-size: 0.6rem; letter-spacing: 0.4px; white-space: nowrap; }
    .sticky-cta { padding: 12px 14px; font-size: 0.74rem; }
}

/* ── Spec rows stack on narrow screens ───────────────────────────────────── */
@media (max-width: 560px) {
    .spec { flex-direction: column; align-items: flex-start; gap: 2px; }
    .spec-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1px; }
    /* The sticky bar already offers "Order on WhatsApp" — one CTA is enough. */
    .whatsapp-fab { display: none; }
    .back-to-top { bottom: 84px; right: 16px; }
}

/* ── Let the pricing badges escape the card ──────────────────────────────── */
/* .glass-card sets overflow:hidden for the cursor spotlight, which was clipping
   the "MOST POPULAR" / "BEST VALUE" pills sitting at top:-13px. The spotlight
   layer is inset:0, so inheriting the radius clips it correctly on its own. */
.glass-card::after { border-radius: inherit; }
.price-card { overflow: visible; }