/* ═══════════════════════════════════════════════════════════════════
   Suppliments.net — Master Stylesheet
   ═══════════════════════════════════════════════════════════════════ */
:root {
    --bg: #050507; --surface: #0a0a0f; --surface2: #111118;
    --border: #1a1a25; --border2: #252535;
    --text: #f1f5f9; --text-dim: #525268; --text-mid: #8888a0;
    --accent: #a855f7; --accent2: #7c3aed;
    --t: 0.3s cubic-bezier(.4,0,.2,1);
    --r: 16px; --r-sm: 10px;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body { font-family:'Inter',system-ui,sans-serif; background:var(--bg); color:var(--text); line-height:1.6; overflow-x:hidden; }
.container { max-width:1200px; margin:0 auto; padding:0 2rem; }
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }

/* ── Particles ────────────────────────────────────────────────────── */
#particles { position:fixed; inset:0; z-index:0; pointer-events:none; }

/* ── Gradient text ────────────────────────────────────────────────── */
.gradient { background:linear-gradient(135deg,#a855f7,#06b6d4); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }

/* ── Nav ──────────────────────────────────────────────────────────── */
.nav { position:fixed; top:0; left:0; right:0; z-index:100; padding:1rem 0; transition:var(--t); }
.nav.scrolled { background:rgba(5,5,7,0.92); backdrop-filter:blur(20px); border-bottom:1px solid var(--border); }
.nav .container { display:flex; align-items:center; justify-content:space-between; }
.logo { font-family:'Space Grotesk',sans-serif; font-size:1.3rem; font-weight:800; letter-spacing:-0.5px; }
.logo span { color:var(--accent); }
.nav-links { display:flex; gap:2.5rem; align-items:center; }
.nav-link { font-size:.85rem; font-weight:600; color:var(--text-dim); transition:var(--t); letter-spacing:.5px; }
.nav-link:hover, .nav-link.active { color:var(--text); }
.nav-toggle { display:none; background:none; border:none; cursor:pointer; padding:6px; }
.nav-toggle span { display:block; width:22px; height:2px; background:var(--text); margin:5px 0; transition:var(--t); border-radius:2px; }

/* ── Hero ─────────────────────────────────────────────────────────── */
.hero { position:relative; z-index:1; padding:12rem 0 6rem; text-align:center; }
.hero h1 { font-family:'Space Grotesk',sans-serif; font-size:clamp(2.5rem,6vw,4.5rem); font-weight:900; letter-spacing:-2px; line-height:1.1; margin-bottom:1.5rem; }
.hero-sub { max-width:620px; margin:0 auto 2.5rem; color:var(--text-dim); font-size:1.05rem; line-height:1.8; }
.hero-pill { display:inline-flex; align-items:center; gap:.5rem; padding:.4rem 1rem; border-radius:50px; background:var(--accent)10; border:1px solid var(--accent)30; font-size:.75rem; font-weight:700; letter-spacing:1.5px; color:var(--accent); text-transform:uppercase; margin-bottom:2rem; }
.hero-pill .dot { width:6px; height:6px; border-radius:50%; background:var(--accent); animation:pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }
.hero-actions { display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn-primary { display:inline-flex; align-items:center; gap:.5rem; padding:.85rem 2rem; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; font-weight:700; font-size:.9rem; border-radius:var(--r-sm); border:none; cursor:pointer; transition:var(--t); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 30px rgba(168,85,247,.3); }
.btn-ghost { padding:.85rem 2rem; border:1px solid var(--border2); color:var(--text-dim); font-weight:600; font-size:.9rem; border-radius:var(--r-sm); transition:var(--t); }
.btn-ghost:hover { border-color:var(--text-dim); color:var(--text); }

/* ── Section labels ───────────────────────────────────────────────── */
.section-label { font-size:.7rem; font-weight:800; letter-spacing:2px; color:var(--accent); text-transform:uppercase; margin-bottom:1rem; }
.section-header { text-align:center; margin-bottom:4rem; }
.section-header h2 { font-family:'Space Grotesk',sans-serif; font-size:2.5rem; font-weight:800; letter-spacing:-1px; margin-bottom:.75rem; }
.section-header p { color:var(--text-dim); max-width:500px; margin:0 auto; }

/* ── Philosophy ───────────────────────────────────────────────────── */
.philosophy { position:relative; z-index:1; padding:6rem 0; }
.philosophy-grid { display:grid; grid-template-columns:1fr 1fr; gap:4rem; align-items:start; }
.philosophy-text h2 { font-family:'Space Grotesk',sans-serif; font-size:2.5rem; font-weight:800; letter-spacing:-1px; margin-bottom:1.5rem; line-height:1.15; }
.philosophy-text p { color:var(--text-dim); margin-bottom:1rem; line-height:1.8; }
.philosophy-text strong { color:var(--text); }
.phi-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:1.5rem; margin-bottom:1rem; transition:var(--t); }
.phi-card:hover { border-color:var(--border2); transform:translateY(-2px); }
.phi-icon { margin-bottom:.75rem; }
.phi-card h3 { font-size:1rem; font-weight:700; margin-bottom:.5rem; }
.phi-card p { font-size:.85rem; color:var(--text-dim); line-height:1.6; }

/* ── Community ────────────────────────────────────────────────────── */
.community { position:relative; z-index:1; padding:6rem 0; }
.community-wrapper { text-align:center; }
.community-wrapper h2 { font-family:'Space Grotesk',sans-serif; font-size:2.5rem; font-weight:800; letter-spacing:-1px; margin-bottom:1rem; }
.community-wrapper > p { color:var(--text-dim); max-width:560px; margin:0 auto 3rem; }
.community-features { display:grid; grid-template-columns:repeat(3,1fr); gap:2rem; text-align:left; }
.comm-feat { background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:2rem; }
.comm-num { font-family:'Space Grotesk',sans-serif; font-size:2rem; font-weight:800; color:var(--accent); margin-bottom:.75rem; }
.comm-feat h4 { font-size:1rem; font-weight:700; margin-bottom:.5rem; }
.comm-feat p { font-size:.85rem; color:var(--text-dim); line-height:1.6; }

/* ── Custom ───────────────────────────────────────────────────────── */
.custom { position:relative; z-index:1; padding:6rem 0; }
.custom-grid { display:grid; grid-template-columns:1fr 1fr; gap:4rem; align-items:center; }
.custom-text h2 { font-family:'Space Grotesk',sans-serif; font-size:2.5rem; font-weight:800; letter-spacing:-1px; margin-bottom:1.5rem; line-height:1.15; }
.custom-text p { color:var(--text-dim); line-height:1.8; }
.custom-stats { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.cs-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:2rem; text-align:center; transition:var(--t); }
.cs-card:hover { border-color:var(--accent)40; }
.cs-num { display:block; font-family:'Space Grotesk',sans-serif; font-size:2rem; font-weight:800; color:var(--accent); margin-bottom:.25rem; }
.cs-label { font-size:.8rem; color:var(--text-dim); font-weight:600; }

/* ── Category Preview Grid (Home page) ────────────────────────────── */
.preview { position:relative; z-index:1; padding:6rem 0; }
.preview-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; }
.prev-card { display:block; background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:2rem; transition:var(--t); position:relative; overflow:hidden; }
.prev-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--pv); opacity:0; transition:var(--t); }
.prev-card:hover { border-color:var(--pv); transform:translateY(-4px); }
.prev-card:hover::before { opacity:1; }
.prev-count { font-size:.7rem; font-weight:700; color:var(--pv); text-transform:uppercase; letter-spacing:1px; }
.prev-card h3 { font-size:1.1rem; font-weight:700; margin:.5rem 0; }
.prev-card p { font-size:.8rem; color:var(--text-dim); line-height:1.5; }

/* ── Products Hero ────────────────────────────────────────────────── */
.products-hero, .page-hero { position:relative; z-index:1; padding:10rem 0 3rem; text-align:center; }
.products-hero h1, .page-hero h1 { font-family:'Space Grotesk',sans-serif; font-size:clamp(2.5rem,5vw,4rem); font-weight:900; letter-spacing:-2px; margin-bottom:.75rem; }
.products-hero p, .page-hero p { color:var(--text-dim); font-size:1.05rem; }
.page-hero .hero-sub { max-width:560px; margin:0 auto; }

/* ── Science Page ─────────────────────────────────────────────────── */
.science-section { position:relative; z-index:1; padding:2rem 0 4rem; }
.science-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:2rem; margin-bottom:2rem; transition:var(--t); }
.science-card:hover { border-color:var(--border2); }
.sci-header { display:flex; align-items:center; gap:1.5rem; margin-bottom:1.5rem; }
.sci-img { width:80px; height:80px; border-radius:var(--r-sm); object-fit:cover; background:var(--surface2); }
.sci-header h2 { font-family:'Space Grotesk',sans-serif; font-size:1.4rem; font-weight:800; letter-spacing:.5px; }
.sci-subtitle { font-size:.85rem; color:var(--text-dim); margin-top:.25rem; }
.tier-badge { display:inline-block; font-size:.6rem; font-weight:800; letter-spacing:2px; padding:.3rem .8rem; border-radius:50px; margin-bottom:.5rem; }
.tier-performance { background:#a855f720; color:#a855f7; }
.tier-foundation { background:#f59e0b20; color:#f59e0b; }
.tier-science { background:#c084fc20; color:#c084fc; }
.tier-optimization { background:#ef444420; color:#ef4444; }
.ingredient-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:1rem; }
.ingredient { background:var(--surface2); border:1px solid var(--border); border-radius:var(--r-sm); padding:1.25rem; }
.ingredient h4 { font-size:.9rem; font-weight:700; margin-bottom:.25rem; }
.ingredient .dose { display:inline-block; font-size:.7rem; font-weight:800; color:var(--accent); background:var(--accent)15; padding:.2rem .6rem; border-radius:50px; margin-bottom:.5rem; letter-spacing:.5px; }
.ingredient p { font-size:.8rem; color:var(--text-dim); line-height:1.6; }
.sci-note { margin-top:1rem; padding:1rem 1.25rem; background:var(--surface2); border-left:3px solid var(--accent); border-radius:0 var(--r-sm) var(--r-sm) 0; font-size:.82rem; color:var(--text-dim); line-height:1.6; }
.sci-note strong { color:var(--text); }

/* ═══ CAROUSEL ════════════════════════════════════════════════════ */
.carousel-section { position:relative; z-index:1; padding:3rem 0 4rem; }
.carousel-header { margin-bottom:2rem; }
.carousel-badge { display:inline-block; font-size:.65rem; font-weight:800; letter-spacing:2px; padding:.35rem 1rem; border-radius:50px; margin-bottom:.75rem; text-transform:uppercase; }
.carousel-header h2 { font-family:'Space Grotesk',sans-serif; font-size:1.8rem; font-weight:800; letter-spacing:-1px; margin-bottom:.5rem; }
.carousel-header p { color:var(--text-dim); font-size:.9rem; }

.carousel-wrap { position:relative; }
.carousel-track { display:flex; gap:1rem; overflow-x:auto; scroll-snap-type:x mandatory; -webkit-overflow-scrolling:touch; padding:1rem 0; scrollbar-width:none; }
.carousel-track::-webkit-scrollbar { display:none; }

.carousel-arrow { position:absolute; top:50%; transform:translateY(-50%); z-index:10; width:42px; height:42px; border-radius:50%; border:1px solid var(--border2); background:rgba(10,10,15,.9); backdrop-filter:blur(10px); color:var(--text); cursor:pointer; display:flex; align-items:center; justify-content:center; transition:var(--t); }
.carousel-arrow:hover { background:var(--accent); border-color:var(--accent); }
.carousel-arrow-l { left:-16px; }
.carousel-arrow-r { right:-16px; }

/* ── Product Card ─────────────────────────────────────────────────── */
.p-card { flex:0 0 280px; scroll-snap-align:start; background:var(--surface); border:1px solid var(--border); border-radius:var(--r); overflow:hidden; transition:var(--t); position:relative; display:flex; flex-direction:column; }
.p-card:hover { border-color:var(--card-accent,var(--accent)); transform:translateY(-4px); box-shadow:0 12px 40px rgba(0,0,0,.4); }
.p-badge { position:absolute; top:12px; right:12px; font-size:.6rem; font-weight:800; letter-spacing:1px; padding:.3rem .7rem; border-radius:50px; color:#fff; z-index:2; }
.p-img { padding:1.5rem; display:flex; align-items:center; justify-content:center; }
.p-img img { width:100%; aspect-ratio:1; object-fit:cover; border-radius:var(--r-sm); }
.p-img-placeholder { width:100%; aspect-ratio:1; border-radius:var(--r-sm); display:flex; align-items:center; justify-content:center; font-family:'Space Grotesk',sans-serif; font-size:2.5rem; font-weight:800; }
.p-info { padding:0 1.5rem 1.5rem; flex:1; display:flex; flex-direction:column; }
.p-info h3 { font-family:'Space Grotesk',sans-serif; font-size:.95rem; font-weight:800; letter-spacing:.5px; margin-bottom:.25rem; }
.p-sub { font-size:.75rem; color:var(--card-accent,var(--accent)); font-weight:700; text-transform:uppercase; letter-spacing:.5px; }
.p-desc { font-size:.78rem; color:var(--text-dim); margin-top:.5rem; line-height:1.5; flex:1; }
.p-bottom { display:flex; align-items:center; justify-content:space-between; margin-top:1rem; padding-top:1rem; border-top:1px solid var(--border); }
.p-price { font-family:'Space Grotesk',sans-serif; font-size:1.3rem; font-weight:800; color:var(--card-accent,var(--accent)); }
.p-price small { font-size:.65rem; color:var(--text-dim); font-weight:600; }
.p-btn { font-size:.7rem; font-weight:700; padding:.5rem 1rem; border-radius:50px; border:1px solid var(--border2); background:transparent; color:var(--text-dim); cursor:pointer; transition:var(--t); letter-spacing:.5px; }
.p-btn:hover { border-color:var(--card-accent,var(--accent)); color:var(--card-accent,var(--accent)); }

/* ── Footer ───────────────────────────────────────────────────────── */
.footer { position:relative; z-index:1; border-top:1px solid var(--border); padding:4rem 0 2rem; margin-top:4rem; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:3rem; margin-bottom:3rem; }
.footer-brand { font-family:'Space Grotesk',sans-serif; font-size:1.1rem; font-weight:800; margin-bottom:.5rem; }
.footer-brand span { color:var(--accent); }
.footer-tagline { font-size:.85rem; color:var(--text-dim); }
.footer-col h4 { font-size:.75rem; font-weight:700; letter-spacing:1px; text-transform:uppercase; color:var(--text-mid); margin-bottom:1rem; }
.footer-col a { display:block; font-size:.85rem; color:var(--text-dim); margin-bottom:.5rem; transition:var(--t); }
.footer-col a:hover { color:var(--text); }
.footer-bottom { display:flex; justify-content:space-between; padding-top:2rem; border-top:1px solid var(--border); font-size:.75rem; color:var(--text-dim); }

/* ── Contact Page ─────────────────────────────────────────────────── */
.contact-section { position:relative; z-index:1; padding:2rem 0 4rem; }
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:2rem; margin-bottom:2rem; }
.contact-form-wrap, .suggestion-box { background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:2rem; }
.contact-form-wrap h2, .suggestion-box h2 { font-family:'Space Grotesk',sans-serif; font-size:1.3rem; font-weight:800; margin-bottom:1.5rem; }
.suggest-header { margin-bottom:1.5rem; }
.suggest-header p { font-size:.85rem; color:var(--text-dim); margin-top:.5rem; line-height:1.6; }
.suggest-icon { margin-bottom:.75rem; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-group { margin-bottom:1rem; }
.form-group label { display:block; font-size:.75rem; font-weight:700; color:var(--text-mid); letter-spacing:.5px; margin-bottom:.4rem; text-transform:uppercase; }
.form-group input, .form-group select, .form-group textarea { width:100%; padding:.7rem 1rem; background:var(--surface2); border:1px solid var(--border); border-radius:var(--r-sm); color:var(--text); font-family:inherit; font-size:.85rem; transition:var(--t); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline:none; border-color:var(--accent); }
.form-group textarea { resize:vertical; min-height:100px; }
.contact-info { display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; }
.info-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:1.5rem; }
.info-card h4 { font-size:.85rem; font-weight:700; margin-bottom:.5rem; }
.info-card p { font-size:.85rem; color:var(--text-dim); }
.btn-suggest { background:linear-gradient(135deg,#f59e0b,#f97316); }
@media(max-width:900px) { .contact-grid { grid-template-columns:1fr; } .contact-info { grid-template-columns:1fr; } }

/* ── Scroll Reveal ────────────────────────────────────────────────── */
.reveal { opacity:0; transform:translateY(30px); transition:opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-d1 { transition-delay:.1s; } .reveal-d2 { transition-delay:.2s; }
.reveal-d3 { transition-delay:.3s; } .reveal-d4 { transition-delay:.4s; }
.reveal-d5 { transition-delay:.5s; }

/* ── Hero Animations ──────────────────────────────────────────────── */
.hero-anim { opacity:0; transform:translateY(20px); animation:fadeUp .8s ease forwards; }
.hero-anim-1 { animation-delay:.1s; } .hero-anim-2 { animation-delay:.2s; }
.hero-anim-3 { animation-delay:.4s; } .hero-anim-4 { animation-delay:.6s; }
@keyframes fadeUp { to { opacity:1; transform:translateY(0); } }

/* ── Responsive ───────────────────────────────────────────────────── */
@media(max-width:900px) {
    .philosophy-grid, .custom-grid { grid-template-columns:1fr; gap:2rem; }
    .community-features { grid-template-columns:1fr; }
    .preview-grid { grid-template-columns:repeat(2,1fr); }
    .footer-grid { grid-template-columns:1fr 1fr; gap:2rem; }
    .carousel-arrow-l { left:4px; } .carousel-arrow-r { right:4px; }
}
@media(max-width:600px) {
    .nav-links { display:none; position:fixed; inset:0; background:rgba(5,5,7,.98); flex-direction:column; align-items:center; justify-content:center; gap:2rem; }
    .nav-links.open { display:flex; }
    .nav-toggle { display:block; }
    .preview-grid { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr; }
    .footer-bottom { flex-direction:column; gap:.5rem; text-align:center; }
    .custom-stats { grid-template-columns:1fr 1fr; }
    .p-card { flex:0 0 260px; }
}