/* ============================================================
   COSMEND PEPTIDE LAB — Standalone Theme (Navy × Silver × Cold White)
   ============================================================ */
:root {
  --pl-bg: #0A1420;
  --pl-bg-alt: #0E1B2B;
  --pl-surface: #122236;
  --pl-line: #1E3350;
  --pl-ink: #E9EEF4;
  --pl-ink-soft: #9FB0C2;
  --pl-faint: #6C7F94;
  --pl-accent: #7FA9CF;
  --pl-silver: #C8CED6;
  --pl-cyan: #5FC4D8;
  --pl-radius: 14px;
  --pl-shadow: 0 16px 50px rgba(0, 0, 0, .45);
  --pl-font-display: "Fraunces", serif;
  --pl-font-body: "Inter", -apple-system, sans-serif;
}

body.peptide-theme {
  background: var(--pl-bg);
  color: var(--pl-ink);
  font-family: var(--pl-font-body);
  line-height: 1.7;
}
body.peptide-theme img { max-width: 100%; display: block; }
body.peptide-theme a { color: inherit; text-decoration: none; }

.pl-container { width: min(1180px, 92%); margin: 0 auto; }

/* Top bar */
.pl-topbar { background: #060D16; color: var(--pl-ink-soft); font-size: 12.5px; letter-spacing: .04em; }
.pl-topbar .pl-container { display: flex; justify-content: space-between; padding: 7px 0; gap: 16px; flex-wrap: wrap; }
.pl-topbar a:hover { color: #fff; }

/* Header */
.pl-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 20, 32, .9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pl-line);
}
.pl-nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.pl-logo { font-family: var(--pl-font-display); font-size: 24px; letter-spacing: .16em; color: #fff; font-weight: 500; display: flex; align-items: center; gap: 11px; }
.pl-logo .pl-logo-mark { width: 27px; height: 27px; color: var(--pl-accent); flex: none; }
.pl-logo small { display: block; font-family: var(--pl-font-body); font-size: 10px; letter-spacing: .4em; color: var(--pl-accent); text-transform: uppercase; margin-top: 2px; }
.pl-logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.pl-topbar-social { display: flex; gap: 16px; align-items: center; }
.pl-topbar-social a { color: var(--pl-ink-soft); opacity: .8; display: flex; transition: all .2s; }
.pl-topbar-social a:hover { opacity: 1; color: #fff; }
.pl-topbar-social svg { width: 15px; height: 15px; }
.pl-main-nav { display: flex; align-items: center; gap: 20px; }
.pl-main-nav a {
  font-size: 12px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
  color: var(--pl-ink-soft); padding: 6px 0; border-bottom: 2px solid transparent; transition: all .2s;
  white-space: nowrap;
}
.pl-main-nav a:hover { color: #fff; }
.pl-main-nav a.active { color: var(--pl-accent); border-color: var(--pl-accent); }
.pl-main-nav a.pl-back { color: var(--pl-silver); border: 1px solid var(--pl-line); padding: 7px 14px; border-radius: 999px; }
.pl-main-nav a.pl-back:hover { border-color: var(--pl-accent); color: #fff; }
.pl-btn {
  display: inline-block; padding: 12px 28px; border-radius: 999px;
  font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; transition: all .2s;
  white-space: nowrap;
}
.pl-btn-primary { background: var(--pl-accent); color: #0A1420; }
.pl-btn-primary:hover { background: #9CC2E2; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(127, 169, 207, .35); }
.pl-btn-ghost { border: 1.5px solid var(--pl-line); color: var(--pl-ink); }
.pl-btn-ghost:hover { border-color: var(--pl-accent); color: #fff; }

.pl-nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.pl-nav-toggle svg { width: 26px; height: 26px; stroke: var(--pl-ink); }

@media (max-width: 1240px) {
  .pl-nav-cta { display: none; }
}
@media (max-width: 1020px) {
  .pl-nav-toggle { display: block; }
}

/* Hero */
.pl-hero { position: relative; min-height: 86vh; display: flex; align-items: center; overflow: hidden; }
.pl-hero-bg { position: absolute; inset: 0; }
.pl-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.pl-hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(6, 13, 22, .92) 0%, rgba(8, 17, 28, .68) 50%, rgba(10, 20, 32, .3) 100%);
}
.pl-hero .pl-container { position: relative; z-index: 2; padding: 110px 0; }
.pl-kicker {
  display: flex; align-items: center; gap: 14px; font-size: 12px; letter-spacing: .34em;
  text-transform: uppercase; color: var(--pl-accent); margin-bottom: 26px;
}
.pl-kicker::before { content: ""; width: 44px; height: 1px; background: var(--pl-accent); }
.pl-hero h1 { font-family: var(--pl-font-display); font-weight: 500; font-size: clamp(40px, 6vw, 74px); line-height: 1.08; color: #F4F7FA; max-width: 780px; }
.pl-hero h1 em { font-style: italic; color: var(--pl-cyan); }
.pl-hero p { margin: 28px 0 40px; max-width: 580px; font-size: 17.5px; color: var(--pl-ink-soft); }
.pl-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Sections */
.pl-section { padding: 96px 0; }
.pl-section.alt { background: var(--pl-bg-alt); }
.pl-section-head { max-width: 740px; margin-bottom: 56px; }
.pl-section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.pl-eyebrow { font-size: 12px; letter-spacing: .3em; text-transform: uppercase; color: var(--pl-accent); font-weight: 600; margin-bottom: 16px; }
.pl-section-head h2 { font-family: var(--pl-font-display); font-weight: 500; font-size: clamp(30px, 4vw, 44px); line-height: 1.15; margin-bottom: 18px; color: #F4F7FA; }
.pl-section-head p { color: var(--pl-ink-soft); font-size: 17px; }

.pl-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.pl-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.pl-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Cards */
.pl-card {
  background: var(--pl-surface); border: 1px solid var(--pl-line); border-radius: var(--pl-radius);
  padding: 36px 32px; transition: transform .25s, border-color .25s, box-shadow .25s;
}
.pl-card:hover { transform: translateY(-4px); border-color: #2C4768; box-shadow: var(--pl-shadow); }
.pl-card .pl-icon {
  width: 48px; height: 48px; border-radius: 12px; background: rgba(127, 169, 207, .12);
  display: flex; align-items: center; justify-content: center; margin-bottom: 22px;
}
.pl-card .pl-icon svg { width: 24px; height: 24px; stroke: var(--pl-accent); }
.pl-card h3 { font-family: var(--pl-font-display); font-size: 21px; font-weight: 600; margin-bottom: 12px; color: #F0F4F8; }
.pl-card p { color: var(--pl-ink-soft); font-size: 14.5px; }

/* Stats */
.pl-stats { background: #060D16; padding: 72px 0; border-top: 1px solid var(--pl-line); border-bottom: 1px solid var(--pl-line); }
.pl-stat .num { font-family: var(--pl-font-display); font-size: 50px; font-weight: 500; line-height: 1; color: #fff; }
.pl-stat .num span { color: var(--pl-cyan); }
.pl-stat .label { margin-top: 10px; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--pl-faint); }

/* Split */
.pl-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.pl-split .pl-img-frame { border-radius: var(--pl-radius); overflow: hidden; box-shadow: var(--pl-shadow); }
.pl-split .pl-img-frame img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.pl-split h2 { font-family: var(--pl-font-display); font-weight: 500; font-size: clamp(28px, 3.6vw, 40px); line-height: 1.18; margin-bottom: 20px; color: #F0F4F8; }
.pl-split p { color: var(--pl-ink-soft); margin-bottom: 16px; }
.pl-check-list { list-style: none; margin: 22px 0 30px; }
.pl-check-list li { padding: 9px 0 9px 34px; position: relative; font-size: 15.5px; color: var(--pl-ink); }
.pl-check-list li::before {
  content: ""; position: absolute; left: 0; top: 14px; width: 18px; height: 18px; border-radius: 50%;
  background: rgba(95, 196, 216, .15) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%235FC4D8" stroke-width="3"><path d="M5 13l4 4L19 7"/></svg>') center/11px no-repeat;
}

/* Steps */
.pl-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.pl-step { background: var(--pl-surface); border: 1px solid var(--pl-line); border-radius: var(--pl-radius); padding: 28px 22px; }
.pl-step .n {
  font-family: var(--pl-font-display); font-size: 15px; font-weight: 600; color: var(--pl-cyan);
  width: 34px; height: 34px; border-radius: 50%; background: rgba(95, 196, 216, .12);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.pl-step h4 { font-size: 14px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px; color: #F0F4F8; }
.pl-step p { font-size: 13.5px; color: var(--pl-ink-soft); }

/* Product concepts */
.pl-product { background: var(--pl-surface); border: 1px solid var(--pl-line); border-radius: var(--pl-radius); overflow: hidden; display: grid; grid-template-columns: 340px 1fr; }
.pl-product + .pl-product { margin-top: 40px; }
.pl-product .pl-p-img { min-height: 260px; }
.pl-product .pl-p-img img { width: 100%; height: 100%; object-fit: cover; }
.pl-p-info { padding: 36px 40px; }
.pl-p-info h3 { font-family: var(--pl-font-display); font-size: 24px; font-weight: 600; color: #F0F4F8; }
.pl-p-info .sub { color: var(--pl-faint); font-size: 12.5px; letter-spacing: .12em; text-transform: uppercase; margin: 6px 0 12px; }
.pl-p-info p { color: var(--pl-ink-soft); font-size: 15px; }
.pl-chips { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; }
.pl-chip { font-size: 12px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--pl-line); color: var(--pl-accent); font-weight: 500; letter-spacing: .04em; }

/* Note band */
.pl-note {
  background: var(--pl-bg-alt); border: 1px solid var(--pl-line); border-radius: var(--pl-radius);
  padding: 32px 38px; font-size: 14.5px; color: var(--pl-ink-soft); display: flex; gap: 18px; align-items: flex-start;
}
.pl-note svg { flex: none; width: 22px; height: 22px; stroke: var(--pl-cyan); margin-top: 2px; }

/* CTA */
.pl-cta { text-align: center; padding: 110px 0; background: linear-gradient(180deg, var(--pl-bg) 0%, #08111D 100%); }
.pl-cta h2 { font-family: var(--pl-font-display); font-weight: 500; font-size: clamp(32px, 4.4vw, 52px); margin-bottom: 18px; color: #F4F7FA; }
.pl-cta p { color: var(--pl-ink-soft); max-width: 580px; margin: 0 auto 38px; }

/* Page hero */
.pl-page-hero { background: var(--pl-bg-alt); border-bottom: 1px solid var(--pl-line); padding: 84px 0 72px; }
.pl-page-hero .crumb { font-size: 12.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--pl-faint); margin-bottom: 18px; }
.pl-page-hero h1 { font-family: var(--pl-font-display); font-weight: 500; font-size: clamp(34px, 4.8vw, 54px); line-height: 1.12; max-width: 840px; color: #F4F7FA; }
.pl-page-hero .lede { margin-top: 20px; max-width: 700px; color: var(--pl-ink-soft); font-size: 17.5px; }

/* Footer */
.pl-footer { background: #060D16; color: var(--pl-ink-soft); padding: 72px 0 0; font-size: 14.5px; border-top: 1px solid var(--pl-line); }
.pl-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.4fr; gap: 48px; padding-bottom: 56px; }
.pl-footer .pl-logo { font-size: 22px; }
.pl-footer h5 { color: #F0F4F8; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 20px; }
.pl-footer ul { list-style: none; }
.pl-footer ul li { margin-bottom: 10px; }
.pl-footer ul a { opacity: .85; }
.pl-footer ul a:hover { color: #fff; }
.pl-footer-bottom { border-top: 1px solid var(--pl-line); padding: 24px 0; font-size: 12.5px; opacity: .7; }
.pl-footer-bottom .pl-container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* Reveal */
.pl-reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.pl-reveal.in { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1020px) {
  .pl-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pl-steps { grid-template-columns: repeat(2, 1fr); }
  .pl-split { grid-template-columns: 1fr; gap: 40px; }
  .pl-footer-grid { grid-template-columns: 1fr 1fr; }
  .pl-product { grid-template-columns: 1fr; }
  .pl-product .pl-p-img { max-height: 280px; }
  .pl-main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--pl-bg); border-bottom: 1px solid var(--pl-line);
    flex-direction: column; align-items: flex-start; padding: 20px 5%; gap: 4px;
    box-shadow: var(--pl-shadow);
  }
  .pl-main-nav.open { display: flex; }
  .pl-main-nav a { padding: 10px 0; font-size: 14px; white-space: normal; }
}
@media (max-width: 760px) {
  .pl-grid-3, .pl-grid-2, .pl-grid-4 { grid-template-columns: 1fr; }
  .pl-steps { grid-template-columns: 1fr; }
  .pl-section { padding: 68px 0; }
  .pl-footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .pl-p-info { padding: 28px 24px; }
}