/* ===========================================================
   peptide sticks. — site styles
   Display: Syne · Body: Inter · Tagline: DM Serif italic · Labels: DM Mono
   Cream + Lab Black surfaces · Peptide Yellow accent · no gradients
   =========================================================== */

:root{
  --cream:#F7F5EE;
  --cream-2:#FBFAF4;
  --cream-photo:#F5F3EC;
  --black:#0F0F0F;
  --ink:#1A1A17;
  --ink-2:#3A3A33;
  --muted:#6E6D64;
  --hair:#E4E2D9;
  --hair-2:#EFEDE4;
  --yellow:#F0E040;
  --yellow-dk:#D8C82E;

  /* SKU colors (launch line) */
  --collagen:#A8E4C2;
  --brighten:#FFD1B5;
  --calm:#C7D6F4;
  --depuff:#D9E8B8;
  --recover:#BFD3E8;
  --lift:#E6D6C6;
  --clear:#CFC6FF;

  --f-display:'Syne',sans-serif;
  --f-body:'Inter',system-ui,-apple-system,sans-serif;
  --f-serif:'DM Serif Display',serif;
  --f-mono:'DM Mono',ui-monospace,monospace;

  --maxw:1240px;
  --pad:clamp(20px,5vw,64px);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--cream);
  color:var(--ink);
  font-family:var(--f-body);
  font-weight:400;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding-left:var(--pad); padding-right:var(--pad); }

/* ---------- type helpers ---------- */
.serif{ font-family:var(--f-serif); font-style:italic; font-weight:400; }
.mono{ font-family:var(--f-mono); font-weight:500; letter-spacing:0.12em; text-transform:uppercase; }
.dot::after{ content:'.'; color:var(--yellow); }

/* ---------- buttons ---------- */
.btn{
  font-family:var(--f-body); font-weight:600; font-size:14px; letter-spacing:0;
  padding:13px 22px; border-radius:999px; border:none; cursor:pointer;
  display:inline-flex; align-items:center; gap:8px; white-space:nowrap;
  transition:transform .18s ease, background .18s ease, color .18s ease;
}
.btn-yellow{ background:var(--yellow); color:var(--black); }
.btn-yellow:hover{ background:var(--yellow-dk); transform:translateY(-1px); }
.btn-black{ background:var(--black); color:#fff; }
.btn-black:hover{ background:#262620; transform:translateY(-1px); }
.btn-ghost{ background:transparent; color:var(--black); padding:13px 4px; }
.btn-ghost:hover{ color:var(--yellow-dk); }
.btn .arr{ transition:transform .18s ease; }
.btn:hover .arr{ transform:translateX(3px); }

/* ---------- nav ---------- */
.nav{
  position:sticky; top:0; z-index:60;
  background:rgba(247,245,238,0.85);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--hair);
}
.nav-in{ display:flex; align-items:center; justify-content:space-between; height:68px; }
.brand{ font-family:var(--f-display); font-weight:700; font-size:19px; letter-spacing:-0.025em; }
.nav-links{ display:flex; gap:28px; align-items:center; }
.nav-links a{ font-family:var(--f-body); font-weight:500; font-size:14px; color:var(--ink); transition:color .15s; white-space:nowrap; }
.nav-links a:hover{ color:var(--yellow-dk); }
.nav-right{ display:flex; align-items:center; gap:16px; }
.bag{ font-family:var(--f-mono); font-size:11px; letter-spacing:0.08em; text-transform:uppercase; display:flex; align-items:center; gap:7px; white-space:nowrap; color:var(--muted); }
.bag .dotmark{ width:8px; height:8px; border-radius:50%; background:var(--yellow); display:inline-block; }
@media (max-width:860px){ .nav-links{ display:none; } }

/* ---------- hero ---------- */
.hero{ padding:clamp(40px,5.5vw,72px) 0 clamp(48px,6vw,80px); }
.hero-grid{ display:grid; grid-template-columns:1.25fr 0.75fr; gap:clamp(28px,5vw,72px); align-items:center; }
.eyebrow{ font-family:var(--f-mono); font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); margin-bottom:24px; display:flex; align-items:center; gap:10px; }
.eyebrow::before{ content:''; width:24px; height:1.5px; background:var(--yellow); }
.hero h1{
  font-family:var(--f-display); font-weight:700;
  letter-spacing:-0.025em; line-height:1.0;
  font-size:clamp(42px,5.6vw,76px);
  color:var(--black);
}
.hero h1 em{ font-family:var(--f-serif); font-style:italic; font-weight:400; letter-spacing:-0.005em; }
.hero-sub{
  font-family:var(--f-body); font-weight:400;
  font-size:clamp(16.5px,1.6vw,19px); line-height:1.55;
  color:var(--ink-2); margin:24px 0 30px; max-width:44ch;
}
.hero-cta{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.hero-trust{ display:flex; gap:8px 22px; flex-wrap:wrap; margin-top:32px; }
.hero-trust span{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.12em; text-transform:uppercase; color:var(--muted); display:flex; align-items:center; gap:8px; }
.hero-trust span::before{ content:''; width:5px; height:5px; border-radius:50%; background:var(--yellow); }

.hero-photo{ position:relative; background:var(--cream-photo); border-radius:24px; overflow:hidden; max-width:420px; margin-left:auto; width:100%; }
.hero-photo img{ width:100%; height:auto; }
.hero-photo .tag{
  position:absolute; left:20px; bottom:20px; background:#fff; border-radius:12px; padding:11px 15px;
  box-shadow:0 10px 28px -12px rgba(20,40,30,.25); display:flex; flex-direction:column; gap:3px;
}
.hero-photo .tag .n{ font-family:var(--f-display); font-weight:700; font-size:14px; letter-spacing:-0.015em; }
.hero-photo .tag .p{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.08em; color:var(--muted); }
.hero-blob{ position:absolute; width:88px; height:88px; border-radius:50%; background:var(--yellow); top:-20px; right:-20px; z-index:0; }
@media (max-width:820px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-photo{ order:-1; max-width:420px; }
}

/* ---------- marquee ---------- */
.marquee{ background:var(--black); color:#fff; overflow:hidden; padding:16px 0; }
.marquee-track{ display:flex; gap:0; width:max-content; animation:scroll 32s linear infinite; }
.marquee-track span{ font-family:var(--f-display); font-weight:600; font-size:18px; letter-spacing:-0.015em; padding:0 22px; display:flex; align-items:center; gap:22px; white-space:nowrap; }
.marquee-track span::after{ content:''; width:7px; height:7px; border-radius:50%; background:var(--yellow); }
@keyframes scroll{ to{ transform:translateX(-50%); } }
@media (prefers-reduced-motion:reduce){ .marquee-track{ animation:none; } }

/* ---------- sections ---------- */
.section{ padding:clamp(56px,8vw,112px) 0; }
.sec-head{ max-width:680px; margin-bottom:clamp(36px,4vw,56px); }
.sec-kicker{ font-family:var(--f-mono); font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); margin-bottom:16px; display:flex; align-items:center; gap:10px; }
.sec-kicker::before{ content:''; width:22px; height:1.5px; background:var(--yellow); }
.sec-title{
  font-family:var(--f-display); font-weight:700;
  letter-spacing:-0.025em; line-height:1.05;
  font-size:clamp(28px,3.6vw,46px); color:var(--black);
}
.sec-title em{ font-family:var(--f-serif); font-style:italic; font-weight:400; }
.sec-lead{
  font-family:var(--f-body); font-weight:400;
  font-size:clamp(16px,1.5vw,18px); line-height:1.6;
  color:var(--ink-2); margin-top:16px; max-width:58ch;
}

/* ---------- format / how ---------- */
.format-grid{ display:grid; grid-template-columns:0.95fr 1.05fr; gap:clamp(32px,5vw,72px); align-items:center; }
.format-photo{ background:var(--cream-photo); border-radius:26px; overflow:hidden; }
.steps{ display:flex; flex-direction:column; gap:0; margin-top:8px; }
.step{ display:grid; grid-template-columns:auto 1fr; gap:22px; padding:22px 0; border-top:1px solid var(--hair); align-items:start; }
.step:last-child{ border-bottom:1px solid var(--hair); }
.step .no{ font-family:var(--f-mono); font-size:12px; letter-spacing:0.1em; color:var(--yellow-dk); padding-top:5px; min-width:30px; }
.step h3{ font-family:var(--f-display); font-weight:700; font-size:clamp(20px,2.2vw,26px); letter-spacing:-0.02em; color:var(--black); line-height:1.15; }
.step p{ font-family:var(--f-body); font-size:15px; line-height:1.55; color:var(--muted); margin-top:6px; max-width:46ch; }
@media (max-width:820px){ .format-grid{ grid-template-columns:1fr; } .format-photo{ max-width:440px; } }

/* ---------- full-bleed lineup band ---------- */
.band{ background:var(--cream-2); }
.band img{ width:100%; max-width:1500px; margin:0 auto; }
.band .wrap{ padding-top:clamp(48px,6vw,80px); padding-bottom:clamp(36px,4vw,56px); }

/* ---------- shop ---------- */
.shop-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:24px; flex-wrap:wrap; margin-bottom:clamp(28px,3.5vw,44px); }
.chips{ display:flex; gap:8px; flex-wrap:wrap; }
.chip{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase; padding:8px 14px; border-radius:999px; border:1px solid var(--hair); background:#fff; color:var(--ink); cursor:pointer; transition:.15s; }
.chip:hover{ border-color:var(--ink); }
.chip.active{ background:var(--black); color:#fff; border-color:var(--black); }

.grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(14px,1.4vw,20px); }
@media (max-width:1080px){ .grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:760px){ .grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:460px){ .grid{ grid-template-columns:1fr; } }

/* ---------- product tube cards ---------- */
.sku{
  position:relative; border-radius:18px; cursor:pointer;
  display:flex; flex-direction:column;
  min-height:500px;
  padding:42px 20px 0;
  overflow:hidden;
  box-shadow:0 1px 2px rgba(20,40,30,.04), 0 20px 38px -28px rgba(20,40,30,.4);
  transition:transform .22s ease, box-shadow .22s ease;
}
/* cap zone at top — reads as the physical twist-up cap */
.sku::before{
  content:''; position:absolute; top:0; left:0; right:0; height:28px;
  background:rgba(0,0,0,0.08);
}
/* cap-to-body seam line */
.sku::after{
  content:''; position:absolute; top:28px; left:0; right:0; height:1px;
  background:rgba(0,0,0,0.14);
}
.sku:hover{ transform:translateY(-6px); box-shadow:0 1px 2px rgba(20,40,30,.06), 0 36px 56px -30px rgba(20,40,30,.55); }
.sku-top{ position:relative; display:flex; justify-content:space-between; align-items:flex-start; }
.sku-wm{ font-family:var(--f-display); font-weight:700; font-size:11.5px; line-height:0.95; letter-spacing:-0.02em; color:var(--black); }
.sku-num{ font-family:var(--f-mono); font-size:10px; letter-spacing:0.14em; color:var(--black); opacity:0.55; text-transform:uppercase; }
.sku-name{
  font-family:var(--f-display); font-weight:800;
  letter-spacing:-0.025em; line-height:0.95;
  font-size:clamp(22px,2.3vw,30px);
  color:var(--black);
  margin-top:auto;
  word-break:break-word;
}
.sku-desc{ font-family:var(--f-serif); font-style:italic; font-size:15px; color:var(--ink-2); margin-top:8px; line-height:1.3; }
.sku-inci{ font-family:var(--f-mono); font-size:9.5px; letter-spacing:0.14em; text-transform:uppercase; color:rgba(0,0,0,0.55); margin-top:14px; margin-bottom:20px; }
.sku-band{
  margin:0 -20px; background:var(--yellow); padding:13px 20px;
  display:flex; justify-content:space-between; align-items:center;
}
.sku-band .meta{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase; color:var(--black); }
.sku-band .add{ font-family:var(--f-display); font-weight:700; font-size:13px; letter-spacing:-0.005em; color:var(--black); display:flex; align-items:center; gap:5px; }
.sku-band .add .arr{ transition:transform .18s ease; }
.sku:hover .sku-band .add .arr{ transform:translateX(3px); }

.sku.collagen{ background:var(--collagen); }
.sku.brighten{ background:var(--brighten); }
.sku.calm{ background:var(--calm); }
.sku.depuff{ background:var(--depuff); }
.sku.recover{ background:var(--recover); }
.sku.lift{ background:var(--lift); }
.sku.clear{ background:var(--clear); }

.sku.soon{ background:var(--cream-2); border:1px dashed var(--hair); box-shadow:none; padding-top:24px; }
.sku.soon::before,
.sku.soon::after{ display:none; }
.sku.soon .sku-wm,
.sku.soon .sku-num,
.sku.soon .sku-name,
.sku.soon .sku-desc,
.sku.soon .sku-inci{ color:var(--muted); }
.sku.soon .sku-band{ background:transparent; border-top:1px solid var(--hair); }
.sku.soon .sku-band .meta,
.sku.soon .sku-band .add{ color:var(--muted); }

/* ---------- science (dark) ---------- */
.science{ background:var(--black); color:#fff; }
.science .sec-kicker{ color:#9a9a90; }
.science .sec-title{ color:#fff; }
.science .sec-lead{ color:#c6c6bd; }
.actives{ display:grid; grid-template-columns:repeat(2,1fr); gap:0; margin-top:clamp(36px,4vw,56px); border-top:1px solid #2a2a26; }
.act{ padding:28px 4px; border-bottom:1px solid #2a2a26; display:grid; grid-template-columns:auto 1fr; gap:24px; align-items:start; }
.act:nth-child(odd){ padding-right:36px; border-right:1px solid #2a2a26; }
.act:nth-child(even){ padding-left:36px; }
.act .inci{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.12em; text-transform:uppercase; color:var(--yellow); white-space:nowrap; padding-top:6px; min-width:140px; }
.act h4{ font-family:var(--f-display); font-weight:700; font-size:clamp(18px,1.9vw,22px); letter-spacing:-0.02em; line-height:1.2; }
.act p{ font-family:var(--f-body); font-size:14.5px; line-height:1.6; color:#b4b4ab; margin-top:7px; }
@media (max-width:760px){
  .actives{ grid-template-columns:1fr; }
  .act:nth-child(odd){ padding-right:4px; border-right:none; }
  .act:nth-child(even){ padding-left:4px; }
}

/* ---------- routines ---------- */
.routines{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(16px,2vw,24px); }
.routine{
  background:var(--cream-2); border:1px solid var(--hair); border-radius:22px;
  padding:28px 26px; display:flex; flex-direction:column;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.routine:hover{ transform:translateY(-4px); box-shadow:0 26px 44px -30px rgba(20,40,30,.45); border-color:var(--hair-2); }
.routine .rname{ font-family:var(--f-display); font-weight:700; font-size:clamp(22px,2.3vw,26px); letter-spacing:-0.02em; line-height:1.15; color:var(--black); }
.routine .rsub{ font-family:var(--f-serif); font-style:italic; font-size:15.5px; color:var(--muted); margin-top:6px; }

/* mini product tubes inside routine cards */
.mini-tubes{ display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin:24px 0; }
.mt{
  position:relative; aspect-ratio:1/2.4;
  border-radius:8px; overflow:hidden;
  padding:18px 8px 0; display:flex; flex-direction:column;
  box-shadow:0 1px 1px rgba(0,0,0,0.04), 0 10px 18px -12px rgba(0,0,0,0.3);
}
.mt::before{
  content:''; position:absolute; top:0; left:0; right:0; height:10px;
  background:rgba(0,0,0,0.08);
}
.mt::after{
  content:''; position:absolute; top:10px; left:0; right:0; height:1px;
  background:rgba(0,0,0,0.14);
}
.mt-wm{ position:relative; font-family:var(--f-display); font-weight:700; font-size:7.5px; line-height:0.95; letter-spacing:-0.02em; color:var(--black); }
.mt-name{ font-family:var(--f-display); font-weight:800; font-size:clamp(9px,0.9vw,11px); letter-spacing:-0.025em; line-height:0.95; color:var(--black); margin-top:auto; margin-bottom:8px; word-break:break-word; }
.mt-band{ height:9px; background:var(--yellow); margin:0 -8px; }
.mt.collagen{ background:var(--collagen); }
.mt.brighten{ background:var(--brighten); }
.mt.calm{ background:var(--calm); }
.mt.depuff{ background:var(--depuff); }
.mt.recover{ background:var(--recover); }
.mt.lift{ background:var(--lift); }
.mt.clear{ background:var(--clear); }

.routine .rfoot{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; gap:14px; padding-top:18px; border-top:1px solid var(--hair); }
.routine .rprice{ font-family:var(--f-mono); font-size:11px; letter-spacing:0.08em; text-transform:uppercase; color:var(--ink); }
.routine .rprice b{ font-family:var(--f-display); font-weight:700; font-size:16px; letter-spacing:-0.015em; }
@media (max-width:860px){ .routines{ grid-template-columns:1fr; max-width:480px; } }

/* ---------- CTA band ---------- */
.cta{ background:var(--yellow); }
.cta .wrap{ padding:clamp(48px,6.5vw,88px) var(--pad); display:grid; grid-template-columns:1.1fr 0.9fr; gap:40px; align-items:center; }
.cta h2{ font-family:var(--f-display); font-weight:700; letter-spacing:-0.025em; line-height:1.05; font-size:clamp(30px,4vw,52px); color:var(--black); }
.cta h2 em{ font-family:var(--f-serif); font-style:italic; font-weight:400; }
.signup{ display:flex; gap:8px; background:#fff; border-radius:999px; padding:6px 6px 6px 20px; max-width:440px; margin-left:auto; box-shadow:0 12px 30px -16px rgba(40,40,0,.35); }
.signup input{ flex:1; border:none; outline:none; font-family:var(--f-body); font-weight:400; font-size:15px; background:transparent; color:var(--ink); }
.signup input::placeholder{ color:#9a9a90; }
@media (max-width:760px){ .cta .wrap{ grid-template-columns:1fr; } .signup{ margin-left:0; } }

/* ---------- footer ---------- */
.footer{ background:var(--black); color:#fff; padding:clamp(48px,6vw,80px) 0 32px; }
.foot-word{
  font-family:var(--f-display); font-weight:700;
  letter-spacing:-0.035em; line-height:0.9;
  font-size:clamp(56px,12vw,170px);
  color:#fff; margin-bottom:44px;
}
.foot-word .d{ color:var(--yellow); }
.foot-cols{ display:grid; grid-template-columns:1.4fr repeat(3,1fr); gap:32px; padding-bottom:40px; border-bottom:1px solid #262620; }
.foot-cols .blurb{ font-family:var(--f-body); font-size:15.5px; color:#c6c6bd; line-height:1.55; max-width:36ch; }
.fcol h5{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.12em; text-transform:uppercase; color:#8a8a80; margin-bottom:14px; }
.fcol a{ display:block; font-family:var(--f-body); font-weight:500; font-size:14.5px; color:#e7e7df; padding:5px 0; transition:.15s; }
.fcol a:hover{ color:var(--yellow); }
.foot-base{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; padding-top:22px; }
.foot-base .fine{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.08em; text-transform:uppercase; color:#6e6e64; }
@media (max-width:760px){ .foot-cols{ grid-template-columns:1fr 1fr; } .foot-cols .blurb{ grid-column:1/-1; } }

/* ---------- scroll reveal (enhancement only) ---------- */
.reveal{ }
.reveal.in{ animation:reveal-up .65s ease both; }
@keyframes reveal-up{ from{ opacity:0; transform:translateY(18px); } to{ opacity:1; transform:none; } }
@media (prefers-reduced-motion:reduce){ .reveal.in{ animation:none; } }