/* ============================================
   PEPTIDE EDUCATION LIBRARY — "The Calm Clinic"
   Shared stylesheet
   ============================================ */

@import url('https://api.fontshare.com/v2/css?f[]=switzer@400,500,600,700&display=swap');

:root {
  /* Core palette — warm clinical */
  --bg:          #FEFCF9;   /* warm white, borrowed from brand */
  --surface:     #FFFFFF;   /* card surfaces */
  --ink:         #202020;   /* near-black text */
  --ink-soft:    #5A5A56;   /* secondary text */
  --ink-faint:   #8C8C86;   /* captions, meta */
  --line:        #E9E5DE;   /* hairline borders */
  --line-soft:   #F2EEE7;   /* very soft fills */
  --teal:        #2FA89A;   /* trust accent — actions, key markers */
  --teal-deep:   #1F8377;   /* hover */
  --teal-wash:   #EAF6F4;   /* teal tint backgrounds */
  --amber-wash:  #FBF4E6;   /* gentle caution background */
  --amber-line:  #E8D5A8;
  --shadow:      0 1px 2px rgba(32,32,32,0.04), 0 8px 24px rgba(32,32,32,0.05);
  --shadow-lg:   0 2px 4px rgba(32,32,32,0.05), 0 16px 48px rgba(32,32,32,0.08);
  --radius:      16px;
  --radius-sm:   10px;
  --maxw:        1080px;

  /* Category colors — soft, distinct, never loud */
  --c-weight:    #C77B53;
  --c-muscle:    #B0613F;
  --c-gh:        #6E7FB8;
  --c-brain:     #7E6BB0;
  --c-energy:    #C9A23F;
  --c-skin:      #4FA3A0;
  --c-sexual:    #C77B9C;
  --c-immunity:  #5FA37C;
  --c-hormonal:  #B5894F;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Switzer', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Typography ---------- */
h1, h2, h3, .eyebrow, .nav-logo, .btn, .cat-card-name, .pep-name {
  font-family: 'Switzer', sans-serif;
}

.display {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  line-height: 1.15;
}

h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--teal);
}

a { color: var(--teal-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }

/* ---------- Top navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(254,252,249,0.88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.nav-logo {
  display: flex; align-items: center; gap: 11px;
}
.nav-logo:hover { text-decoration: none; }
.nav-mark {
  width: 34px; height: 34px; border-radius: 9px;
  object-fit: cover; display: block;
}
.nav-logo-text {
  display: flex; flex-direction: column; line-height: 1.05;
  text-transform: uppercase; font-weight: 700; font-size: 0.98rem;
  letter-spacing: 0.1em; color: var(--ink);
}
.nav-logo-text small {
  font-size: 0.6rem; font-weight: 600; letter-spacing: 0.16em;
  color: var(--teal); margin-top: 3px;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  color: var(--ink-soft); font-size: 0.9rem; font-weight: 500;
  padding: 8px 12px; border-radius: 8px;
}
.nav-links a:hover { color: var(--ink); background: var(--line-soft); text-decoration: none; }
.nav-cta {
  background: var(--teal); color: #fff !important;
  padding: 9px 16px !important; border-radius: 9px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--line-soft); color: var(--ink) !important; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: 11px;
  font-weight: 600; font-size: 0.98rem; cursor: pointer;
  border: 1px solid transparent; transition: all 0.18s ease;
  text-transform: none; letter-spacing: 0;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-deep); text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal-deep); text-decoration: none; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

/* ---------- Hero ---------- */
.hero { padding: 80px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 56px; align-items: center; }
.hero h1 { margin: 18px 0 20px; }
.hero p.lede { font-size: 1.18rem; color: var(--ink-soft); max-width: 32ch; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }

.hero-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
}
.hero-card h3 { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.82rem; color: var(--ink-faint); margin-bottom: 14px; }
.hero-card .stat { display: flex; align-items: baseline; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line-soft); }
.hero-card .stat:last-child { border-bottom: 0; }
.hero-card .stat b { font-size: 1.5rem; color: var(--teal-deep); font-weight: 700; }
.hero-card .stat span { color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- Category grid ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow);
  transition: all 0.18s ease; display: block; color: var(--ink);
}
.cat-card:hover { text-decoration: none; transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--c, var(--teal)); }
.cat-dot { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 16px; background: var(--cw, var(--teal-wash)); }
.cat-dot svg { width: 20px; height: 20px; }
.cat-card-name { text-transform: uppercase; letter-spacing: 0.07em; font-weight: 600; font-size: 1rem; margin-bottom: 6px; }
.cat-card-desc { color: var(--ink-soft); font-size: 0.92rem; }
.cat-card-count { color: var(--ink-faint); font-size: 0.82rem; margin-top: 12px; }

/* ---------- Peptide list ---------- */
.pep-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pep-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 22px 24px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 8px; transition: all 0.18s ease; color: var(--ink);
}
.pep-card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.pep-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.pep-name { text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; font-size: 1.05rem; }
.pep-tag { font-size: 0.78rem; color: var(--ink-faint); }
.pep-card-desc { color: var(--ink-soft); font-size: 0.92rem; }

.uses-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--teal-wash); color: var(--teal-deep);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.02em;
  padding: 4px 10px; border-radius: 100px; white-space: nowrap;
}
.uses-badge svg { width: 12px; height: 12px; }

/* ---------- Peptide detail page ---------- */
.detail-head { border-bottom: 1px solid var(--line); padding-bottom: 28px; margin-bottom: 8px; }
.detail-cat { display: inline-block; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 12px; }
.detail-head h1 { margin-bottom: 12px; }
.detail-lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 60ch; }

.detail-grid { display: grid; grid-template-columns: 1fr 320px; gap: 40px; margin-top: 40px; align-items: start; }
.detail-main h2 { text-transform: uppercase; letter-spacing: 0.06em; font-size: 1.05rem; margin: 32px 0 14px; color: var(--ink); }
.detail-main h2:first-child { margin-top: 0; }
.detail-main p { color: var(--ink-soft); margin-bottom: 14px; }
.benefit-list { list-style: none; display: grid; gap: 10px; margin: 4px 0 8px; }
.benefit-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-soft); }
.benefit-list li::before { content: ""; flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--teal); margin-top: 9px; }

.detail-side { position: sticky; top: 88px; display: grid; gap: 16px; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow); }
.side-card h3 { text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.78rem; color: var(--ink-faint); margin-bottom: 14px; }
.spec-row { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 0.92rem; }
.spec-row:last-child { border-bottom: 0; }
.spec-row .k { color: var(--ink-faint); }
.spec-row .v { color: var(--ink); font-weight: 600; text-align: right; }

.source-note { font-size: 0.82rem; color: var(--ink-faint); font-style: italic; margin-top: 10px; line-height: 1.5; }

/* ---------- Callouts ---------- */
.callout {
  background: var(--amber-wash); border: 1px solid var(--amber-line);
  border-radius: var(--radius-sm); padding: 18px 20px; margin: 22px 0;
  font-size: 0.92rem; color: #7a6326;
}
.callout b { color: #5e4d1d; }
.callout-teal { background: var(--teal-wash); border-color: #BFE3DD; color: var(--teal-deep); }
.callout-teal b { color: var(--teal-deep); }

/* ---------- Calculator ---------- */
.calc-shell { display: grid; grid-template-columns: 1fr 360px; gap: 36px; align-items: start; }
.calc-steps { display: grid; gap: 20px; }
.calc-step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; box-shadow: var(--shadow); }
.calc-step-head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.calc-num { flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--teal); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 0.9rem; }
.calc-step h3 { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.95rem; }
.calc-step .hint { color: var(--ink-faint); font-size: 0.88rem; margin: 2px 0 16px 42px; }
.calc-field { margin-left: 42px; }
.calc-field label { display: block; font-size: 0.82rem; color: var(--ink-soft); font-weight: 500; margin-bottom: 7px; }
.calc-input-row { display: flex; gap: 10px; align-items: stretch; }
.calc-input-row input, .calc-input-row select {
  flex: 1; font-family: inherit; font-size: 1.05rem; color: var(--ink);
  padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg);
  -webkit-appearance: none; appearance: none;
}
.calc-input-row input:focus, .calc-input-row select:focus { outline: 2px solid var(--teal); outline-offset: 1px; border-color: var(--teal); }
.calc-input-row select { flex: 0 0 110px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238C8C86' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 34px; }

/* Result panel with live syringe */
.calc-result { position: sticky; top: 88px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-lg); text-align: center; }
.calc-result h3 { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.78rem; color: var(--ink-faint); margin-bottom: 18px; }
.draw-num { font-size: 3.4rem; font-weight: 700; color: var(--teal-deep); line-height: 1; letter-spacing: -0.02em; }
.draw-unit { font-size: 1rem; color: var(--ink-soft); font-weight: 500; margin-top: 4px; }
.draw-sub { font-size: 0.86rem; color: var(--ink-faint); margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line-soft); }
.draw-sub b { color: var(--ink); }

.syringe { margin: 24px auto 6px; width: 100%; max-width: 280px; }
.syringe-barrel { fill: #fff; stroke: var(--line); stroke-width: 2; }
.syringe-fill { fill: var(--teal-wash); transition: width 0.4s cubic-bezier(.4,0,.2,1); }
.syringe-tick { stroke: var(--ink-faint); stroke-width: 1; }
.syringe-label { fill: var(--ink-faint); font-size: 9px; font-family: 'Switzer', sans-serif; }
.syringe-marker { stroke: var(--teal-deep); stroke-width: 2.5; transition: x 0.4s cubic-bezier(.4,0,.2,1); }

.calc-empty { color: var(--ink-faint); font-size: 0.92rem; padding: 20px 0; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: #CFCEC9; padding: 56px 0 40px; margin-top: 40px; }
.footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer h4 { color: #fff; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.78rem; margin-bottom: 16px; }
.footer a { color: #CFCEC9; font-size: 0.92rem; display: block; margin-bottom: 9px; }
.footer a:hover { color: #fff; }
.footer-brand { font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: #fff; margin-bottom: 14px; }
.footer-fine { color: #8B8A85; font-size: 0.82rem; line-height: 1.6; max-width: 42ch; }
.footer-legal { border-top: 1px solid #333; margin-top: 36px; padding-top: 24px; font-size: 0.8rem; color: #7A7975; }

/* ---------- Disclaimer strip ---------- */
.disclaimer-strip {
  background: var(--line-soft); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 18px 22px; margin: 0 0 8px;
  font-size: 0.86rem; color: var(--ink-soft); line-height: 1.55;
}
.disclaimer-strip b { color: var(--ink); }

/* ---------- Page intro ---------- */
.page-intro { padding: 56px 0 8px; }
.page-intro h1 { margin: 14px 0 14px; }
.page-intro p { color: var(--ink-soft); font-size: 1.12rem; max-width: 60ch; }

/* ---------- Vendor CTA band ---------- */
.vendor-band { background: var(--teal-wash); border-top: 1px solid #CDE8E3; border-bottom: 1px solid #CDE8E3; }
.vendor-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 36px 24px; flex-wrap: wrap; }
.vendor-band h3 { text-transform: uppercase; letter-spacing: 0.05em; font-size: 1.2rem; color: var(--ink); margin-bottom: 8px; }
.vendor-band p { color: var(--ink-soft); font-size: 0.95rem; max-width: 46ch; }
.vendor-band .code { display: inline-block; background: #fff; border: 1px dashed var(--teal); color: var(--teal-deep); font-weight: 700; padding: 3px 10px; border-radius: 7px; letter-spacing: 0.05em; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-card { order: -1; }
  .cat-grid { grid-template-columns: 1fr; }
  .pep-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-side { position: static; }
  .calc-shell { grid-template-columns: 1fr; }
  .calc-result { position: static; }
  .footer .wrap { grid-template-columns: 1fr; gap: 28px; }
  .calc-field, .calc-step .hint { margin-left: 0; }
}

/* ---------- Mobile hamburger nav ---------- */
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; width: 42px; height: 42px; flex-direction: column; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; height: 2px; width: 22px; background: var(--ink); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-mobile { display: none; flex-direction: column; padding: 8px 24px 20px; border-top: 1px solid var(--line); background: var(--bg); }
.nav-mobile.open { display: flex; }
.nav-mobile a { padding: 14px 4px; font-size: 1rem; color: var(--ink-soft); border-bottom: 1px solid var(--line-soft); }
.nav-mobile a:hover, .nav-mobile a.active { color: var(--ink); text-decoration: none; }
.nav-mobile a.active { font-weight: 600; }
.nav-mobile-cta { color: var(--teal-deep) !important; font-weight: 600; border-bottom: 0 !important; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- Category icon (teal line) ---------- */
.cat-dot svg { width: 22px; height: 22px; color: var(--teal-deep); }

/* ---------- Before / after gallery ---------- */
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 8px; }
.ba-col h3 {
  text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.82rem;
  color: var(--ink-faint); margin-bottom: 14px; text-align: center;
}
.ba-col.after h3 { color: var(--teal-deep); }
.ba-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ba-pair img {
  width: 100%; aspect-ratio: 4/5; object-fit: cover;
  border-radius: var(--radius-sm); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.ba-col.after .ba-pair img { border-color: #BFE3DD; }
.about-portrait {
  width: 100%; max-width: 340px; border-radius: var(--radius);
  border: 1px solid var(--line); box-shadow: var(--shadow-lg); object-fit: cover;
}

/* ---------- Hero italic accent ---------- */
.hero h1 .accent {
  display: block; font-style: normal; text-transform: uppercase;
  letter-spacing: 0.04em; font-weight: 500; color: var(--teal-deep);
  font-size: 0.62em; margin-top: 6px;
}

/* ---------- Suggested dose chips in calculator ---------- */
.dose-presets { margin-left: 42px; margin-top: 14px; }
.dose-presets .preset-label { font-size: 0.78rem; color: var(--ink-faint); margin-bottom: 8px; }
.preset-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.preset-chip {
  font-family: inherit; font-size: 0.86rem; font-weight: 600; text-align: center;
  padding: 8px 14px; border-radius: 12px; cursor: pointer;
  background: var(--teal-wash); color: var(--teal-deep);
  border: 1px solid #CDE8E3; transition: all 0.15s ease; line-height: 1.2;
}
.preset-chip:hover { background: var(--teal); color: #fff; border-color: var(--teal); }
.preset-chip .lvl { opacity: 0.7; font-size: 0.7rem; display: block; font-weight: 500; }

/* peptide picker on calculator */
.pep-picker { margin-bottom: 4px; }
.pep-picker select {
  width: 100%; font-family: inherit; font-size: 1.05rem; color: var(--ink);
  padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg);
  -webkit-appearance: none; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238C8C86' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 34px;
}

@media (max-width: 860px) {
  .ba-grid { grid-template-columns: 1fr; gap: 24px; }
}

.hero-portrait-wrap { display: flex; justify-content: flex-end; }
@media (max-width: 860px) { .hero-portrait-wrap { justify-content: center; } }

@media (max-width: 760px) {
  .about-intro { grid-template-columns: 1fr !important; gap: 24px !important; }
  .about-intro .about-portrait { max-width: 280px; margin: 0 auto; }
}


/* centered hero (no portrait) */
.hero-centered { padding: 88px 0 64px; text-align: left; }

/* ---------- About: reason rows (replaces colored boxes) ---------- */
.reason-row { display: grid; grid-template-columns: 56px 1fr; gap: 20px; align-items: start; margin-bottom: 32px; }
.reason-icon {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center;
  background: var(--teal-wash); color: var(--teal-deep); border: 1px solid #CDE8E3;
}
.reason-icon svg { width: 26px; height: 26px; }
.reason-row h3 {
  text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.95rem;
  color: var(--ink); margin-bottom: 7px; margin-top: 4px;
}
.reason-row p { color: var(--ink-soft); margin: 0; }
@media (max-width: 760px) {
  .reason-row { grid-template-columns: 48px 1fr; gap: 16px; }
  .reason-icon { width: 48px; height: 48px; }
}

/* ---------- Units-to-mg guide ---------- */
.units-guide { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin-top: 16px; box-shadow: var(--shadow); }
.units-guide h3 { font-size: 1.05rem; margin-bottom: 6px; }
.units-sub { color: var(--ink-soft); font-size: 0.92rem; margin-bottom: 20px; max-width: 56ch; }
.units-grid { display: grid; grid-template-columns: 90px 1fr; gap: 24px; align-items: center; }
.units-syringe svg { width: 80px; height: 220px; }
.units-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.units-card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px; text-align: center; }
.uc-conc { display: block; font-size: 0.86rem; color: var(--teal-deep); font-weight: 600; margin-bottom: 8px; }
.uc-eq { display: block; font-size: 0.95rem; color: var(--ink-soft); }
.uc-eq b { color: var(--ink); font-size: 1.05rem; }

/* ---------- Supplies grid ---------- */
.supply-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-top: 20px; }
.supply-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px 22px; box-shadow: var(--shadow); transition: all 0.18s ease; color: var(--ink); display: block; }
.supply-card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--teal); }
.supply-name { font-weight: 600; font-size: 1rem; margin-bottom: 6px; }
.supply-desc { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 12px; }
.supply-link { color: var(--teal-deep); font-size: 0.86rem; font-weight: 600; }

@media (max-width: 760px) {
  .units-cards { grid-template-columns: 1fr; }
  .supply-grid { grid-template-columns: 1fr; }
}

/* ============ CALCULATOR PAGE STRUCTURE ============ */
.calc-tabs {
  position: sticky; top: 64px; z-index: 40;
  background: rgba(254,252,249,0.92); backdrop-filter: saturate(180%) blur(12px);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.calc-tabs-inner { display: flex; gap: 4px; overflow-x: auto; padding: 0 24px; }
.calc-tab {
  flex: none; padding: 14px 16px; font-size: 0.88rem; font-weight: 600;
  color: var(--ink-soft); border-bottom: 2px solid transparent; white-space: nowrap;
}
.calc-tab:hover { color: var(--ink); text-decoration: none; }
.calc-tab.active { color: var(--teal-deep); border-bottom-color: var(--teal); }

.calc-section { padding: 64px 0; position: relative; }
.anchor { position: absolute; top: -120px; }
.section-light { background: var(--bg); }
.section-tint { background: var(--line-soft); }
.section-dark { background: var(--ink); }

/* syringe explainer (dark section) */
.syringe-explain { display: grid; grid-template-columns: 120px 1fr; gap: 36px; align-items: center; margin-bottom: 36px; }
.se-visual svg { width: 100px; height: 260px; }
.se-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.se-fact { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-sm); padding: 16px 18px; }
.se-fact b { display: block; color: #fff; font-size: 0.98rem; margin-bottom: 4px; }
.se-fact span { color: #CFCEC9; font-size: 0.88rem; }

.units-guide-dark { background: rgba(255,255,255,0.03); border-color: rgba(255,255,255,0.1); }
.units-card-dark { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12); }
.units-card-dark .uc-conc { color: var(--teal); }

/* water cards */
.water-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 8px; }
.water-card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow); transition: all 0.18s ease; color: var(--ink); display: block; }
.water-card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--teal); }
.wc-tag { position: absolute; top: 14px; right: 14px; background: var(--teal); color: #fff; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; padding: 3px 9px; border-radius: 100px; }
.wc-name { font-weight: 600; font-size: 1rem; margin-bottom: 6px; }
.wc-desc { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 12px; }

@media (max-width: 760px) {
  .syringe-explain { grid-template-columns: 90px 1fr; gap: 20px; }
  .se-facts { grid-template-columns: 1fr; }
  .water-cards { grid-template-columns: 1fr; }
  .calc-tabs { top: 56px; }
}

/* category cards without icons */
.cat-card-noicon { padding-top: 24px; }
.cat-card-noicon .cat-card-name { margin-top: 0; }

/* syringe types (two-up, dark section) */
.syringe-types { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 36px; }
.syringe-type { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-sm); padding: 22px; }
.st-badge { display: inline-block; background: var(--teal); color: #fff; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; padding: 3px 10px; border-radius: 100px; }

/* COA points (light section) */
.coa-points { display: grid; gap: 12px; }
.coa-point { display: grid; grid-template-columns: 34px 1fr; gap: 14px; align-items: start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; }
.coa-point b { color: var(--ink); }
.coa-point > div { color: var(--ink-soft); font-size: 0.92rem; }
.coa-n { width: 28px; height: 28px; border-radius: 50%; background: var(--teal-wash); color: var(--teal-deep); display: grid; place-items: center; font-weight: 700; font-size: 0.9rem; border: 1px solid #CDE8E3; }

@media (max-width: 760px) {
  .syringe-types { grid-template-columns: 1fr; }
}

/* start-here note (Peptides page) */
.start-here { display: grid; grid-template-columns: 52px 1fr; gap: 18px; align-items: start; background: var(--teal-wash); border: 1px solid #CDE8E3; border-radius: var(--radius); padding: 24px 26px; margin-top: 16px; }
.start-here-icon { width: 52px; height: 52px; border-radius: 13px; background: #fff; color: var(--teal-deep); display: grid; place-items: center; border: 1px solid #CDE8E3; }
.start-here-icon svg { width: 26px; height: 26px; }
.start-here h3 { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.86rem; color: var(--ink); margin-bottom: 8px; }
.start-here p { color: var(--ink-soft); margin: 0; font-size: 0.86rem; line-height: 1.55; }
@media (max-width: 760px) { .start-here { grid-template-columns: 44px 1fr; gap: 14px; padding: 20px; } .start-here-icon { width: 44px; height: 44px; } }

/* three syringe types */
.syringe-types-3 { grid-template-columns: repeat(3, 1fr); }
.shot-types { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 0 0 36px; }
.shot-type { background: rgba(83,197,179,0.08); border: 1px solid rgba(83,197,179,0.25); border-radius: var(--radius-sm); padding: 18px 20px; }
.shot-type h4 { color: var(--teal); font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 6px; }
.shot-type p { color: #CFCEC9; font-size: 0.9rem; margin: 0; }
@media (max-width: 860px) { .syringe-types-3 { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .shot-types { grid-template-columns: 1fr; } }

/* ============ MOBILE POLISH PASS ============ */
@media (max-width: 600px) {
  /* tighten oversized display headings on phones */
  .page-intro h1.display, .hero h1.display { font-size: clamp(2rem, 9vw, 2.6rem); line-height: 1.08; }
  .display { word-break: normal; overflow-wrap: break-word; }

  /* prevent hint/label text overflow in calc */
  .calc-step .hint, .calc-step-head h3 { overflow-wrap: break-word; }
  .calc-input-row { flex-wrap: nowrap; }
  .calc-input-row input { min-width: 0; }

  /* sticky tabs: comfortable tap targets, fade edges */
  .calc-tabs-inner { padding: 0 16px; }
  .calc-tab { padding: 13px 13px; font-size: 0.84rem; }

  /* section padding trimmed on phones */
  .calc-section { padding: 44px 0; }
  .section, .section-light, .section-tint, .section-dark { padding-top: 44px; padding-bottom: 44px; }

  /* detail sidebar spacing when stacked */
  .detail-side { margin-top: 28px; }

  /* supply + water + units cards full width already; ensure gaps */
  .se-facts { gap: 10px; }

  /* wrap padding a touch tighter */
  .wrap { padding-left: 20px; padding-right: 20px; }

  /* buttons comfortable on phones */
  .btn-lg { padding: 14px 22px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; text-align: center; }
}

/* tap target minimums everywhere */
@media (max-width: 860px) {
  .nav-cta { padding: 10px 16px; }
  .pep-card, .supply-card, .water-card, .cat-card { -webkit-tap-highlight-color: transparent; }
}

/* fix calculator horizontal overflow on mobile */
@media (max-width: 600px) {
  .calc-step { padding: 20px 18px; }
  .calc-step .hint { margin-left: 0; }
  .calc-field { margin-left: 0; }
  .calc-steps, .calc-step, .calc-shell { min-width: 0; max-width: 100%; }
  .calc-step-head { flex-wrap: wrap; }
  select, input { max-width: 100%; }
}
* { box-sizing: border-box; }

/* category cards on dark background */
.section-dark .cat-card { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.1); box-shadow: none; }
.section-dark .cat-card:hover { background: rgba(255,255,255,0.07); border-color: var(--teal); transform: translateY(-2px); }
.section-dark .cat-card-name { color: #fff; }
.section-dark .cat-card-desc { color: #CFCEC9; }
.section-dark .cat-card-count { color: var(--teal); }

/* what-are-peptides box */
.what-box { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--teal); border-radius: var(--radius-sm); padding: 20px 24px; margin: 14px 0 0; box-shadow: var(--shadow); }
.what-box h3 { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.86rem; color: var(--ink); margin-bottom: 8px; }
.what-box p { color: var(--ink-soft); font-size: 0.86rem; line-height: 1.6; margin: 0; }