/* InboundOnSteroids landing | Brand System v4 Black Box */

:root {
  --ink: #131210;
  --red: #C8361B;
  --paper: #FFFFFF;
  --muted: #6B675E;
  --body-2: #4A463E;
  --stroke-mid: #9A958A;
  --hairline: #C9C2B2;
  --sans: 'Schibsted Grotesk', sans-serif;
  --serif: 'Source Serif 4', serif;
  --pad: clamp(20px, 5vw, 60px);
  --maxw: 1320px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
}

a { color: var(--ink); }
a:hover { color: var(--red); }
p { margin: 0; }

/* ---- Reveal animation (JS-gated so no-JS shows content) ---- */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js .reveal.on {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal,
  .js .reveal.on {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---- Shared layout ---- */
.section {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}
.rule-top { border-top: 2.5px solid var(--ink); }

.sec-label {
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: 0.06em;
  color: var(--ink);
}
.sec-head { display: flex; flex-direction: column; gap: 12px; }
.sec-strap {
  font-weight: 400;
  font-size: clamp(17px, 1.8vw, 19px);
  line-height: 1.5;
  color: var(--body-2);
}

.display-lg {
  font-weight: 800;
  font-size: clamp(36px, 4.5vw, 64px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.serif-italic-20 {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(18px, 1.9vw, 20px);
  color: var(--muted);
}
.serif-italic-19 {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(17px, 1.9vw, 19px);
  line-height: 1.5;
  color: var(--muted);
}

.red { color: var(--red); }

/* ---- Wordmark ---- */
.wordmark {
  font-family: var(--sans);
  font-size: 23px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark:hover { color: var(--ink); }
.wm-a, .wm-b { font-weight: 500; }
.wm-on { font-weight: 900; color: var(--red); }
.wordmark--sm { font-size: 19px; }

/* ---- Buttons ---- */
.btn-ink {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
  background: var(--ink);
  padding: 13px 28px;
  text-decoration: none;
  border-radius: 0;
  display: inline-block;
  transition: background 0.15s ease;
}
.btn-ink:hover { background: var(--red); color: var(--paper); }

.btn-red {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 20px;
  color: var(--paper);
  background: var(--red);
  padding: 19px 44px;
  text-decoration: none;
  border-radius: 0;
  display: inline-block;
  text-align: center;
  transition: background 0.15s ease;
}
.btn-red:hover { background: var(--ink); color: var(--paper); }
.btn-red--lg { font-size: clamp(19px, 2.2vw, 22px); padding: 20px 52px; }

/* ---- THE BOX ---- */
.the-box {
  border: 4px solid var(--ink);
  outline: 1px solid var(--ink);
  outline-offset: 3px;
  background: var(--paper);
}

/* ---- NAV ---- */
.nav-wrap { width: 100%; }
.nav {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 30px var(--pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ---- HERO ---- */
.hero {
  padding-top: clamp(32px, 4.5vw, 48px);
  padding-bottom: clamp(44px, 6vw, 64px);
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 4.5vw, 48px);
}
.h1 {
  margin: 0;
  font-weight: 800;
  font-size: clamp(37px, calc(16.57px + 5.238vw), 92px);
  line-height: 0.99;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 1180px;
  text-wrap: balance;
}
.hero-cols {
  display: flex;
  gap: clamp(32px, 5vw, 60px);
  align-items: flex-end;
  flex-wrap: wrap;
}
.hero-box {
  flex: 1 1 520px;
  min-width: 0;
  padding: 32px clamp(24px, 3vw, 38px) 0;
  display: flex;
  flex-direction: column;
  gap: 17px;
  transform: rotate(-0.6deg);
}
.hero-side {
  flex: 1 1 300px;
  max-width: 360px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 26px;
  padding-bottom: 6px;
}

.warn-row { display: flex; align-items: center; gap: 14px; }
.warn-sq { width: 17px; height: 17px; background: var(--ink); flex-shrink: 0; }
.warn-head {
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 27px);
  letter-spacing: 0.05em;
  color: var(--ink);
}
.warn-head--lg { font-size: clamp(21px, 3vw, 30px); }

.hero-lede {
  font-weight: 400;
  font-size: clamp(17px, 1.9vw, 19px);
  line-height: 1.55;
  color: var(--ink);
  max-width: 720px;
}
.effects { display: flex; flex-direction: column; gap: 8px; }
.effect { font-weight: 700; font-size: clamp(18px, 2vw, 20px); color: var(--ink); }

.admin {
  display: flex;
  border-top: 2px solid var(--ink);
  margin: 6px calc(clamp(24px, 3vw, 38px) * -1) 0;
}
.admin-cell {
  flex: 1;
  padding: 14px 0 16px clamp(24px, 3vw, 38px);
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.admin-cell--wide { flex: 1.3; padding-left: 26px; border-left: 1px solid var(--ink); }
.admin-cell--pad { padding-left: 26px; padding-right: 26px; border-left: 1px solid var(--ink); }
.admin-label {
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.admin-val { font-weight: 600; font-size: 18px; color: var(--ink); }

.rx-row { display: flex; align-items: baseline; gap: 16px; }
.rx-mark { font-family: var(--serif); font-size: 58px; line-height: 1; color: var(--ink); }
.rx-note { font-weight: 400; font-size: 16px; color: var(--muted); line-height: 1.4; }
.rx-fine { font-weight: 400; font-size: 16px; line-height: 1.5; color: var(--body-2); }

/* ---- DOSE STRIP BAND ---- */
.dose-band {
  padding-top: clamp(40px, 6vw, 64px);
  padding-bottom: clamp(40px, 6vw, 64px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#fig-dose { overflow: hidden; min-height: 30px; }
.dose-caption {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(15px, 1.8vw, 17px);
  color: var(--muted);
}
.dose-red {
  color: var(--red);
  font-style: normal;
  font-weight: 700;
  font-family: var(--sans);
  font-size: 15px;
}

/* ---- Generic section vertical rhythm ---- */
.rule-top,
.final-cta-wrap {
  padding-top: clamp(44px, 6vw, 64px);
  padding-bottom: clamp(44px, 6vw, 64px);
}
.rule-top { display: flex; flex-direction: column; gap: 34px; }

/* ---- 1 PRESENTING SYMPTOMS ---- */
.two-flex { display: flex; gap: clamp(40px, 6vw, 80px); flex-wrap: wrap; }
.sym-left { flex: 1 1 360px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.sym-right { flex: 1.2 1 440px; min-width: 0; display: flex; flex-direction: column; }
.sym-item {
  font-weight: 400;
  font-size: clamp(18px, 2vw, 20px);
  line-height: 1.55;
  color: var(--ink);
  padding: 18px 0;
  border-top: 1px solid var(--hairline);
}
.sym-item--last { border-bottom: 1px solid var(--hairline); }
.sym-treat {
  font-weight: 800;
  font-size: clamp(22px, 2.9vw, 27px);
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--ink);
  padding-top: 26px;
}

/* ---- 2 DOSAGE ---- */
.dose-list { display: flex; flex-direction: column; }
.dose-row {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  padding: 26px 0;
  border-top: 1px solid var(--hairline);
  align-items: baseline;
}
.dose-row--last { border-bottom: 1px solid var(--hairline); }
.dose-key {
  width: 280px;
  max-width: 40%;
  flex-shrink: 0;
  font-weight: 800;
  font-size: clamp(20px, 2.2vw, 22px);
  color: var(--ink);
}
.dose-key--red { color: var(--red); }
.dose-body {
  font-weight: 400;
  font-size: clamp(18px, 2vw, 20px);
  line-height: 1.55;
  color: var(--ink);
  max-width: 760px;
}

/* ---- 3 SYNTHESIS ---- */
.fig-scroll { overflow-x: auto; overflow-y: hidden; }
#fig-synthesis { min-height: 260px; }
.figure-caption { margin: 0; }
.figure-caption figcaption,
.figure-caption {
  font-family: var(--serif);
  font-size: 16.5px;
  color: var(--ink);
  max-width: 720px;
}
.fig-num { font-weight: 700; }
.fig-it { font-style: italic; }

/* ---- 4 MECHANISM ---- */
.mech-cols {
  display: flex;
  gap: clamp(40px, 5vw, 70px);
  align-items: center;
  flex-wrap: wrap;
}
.mech-left { flex: 1 1 400px; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
.mech-body {
  font-weight: 400;
  font-size: clamp(18px, 2vw, 20px);
  line-height: 1.6;
  color: var(--ink);
}
.mech-right {
  margin: 0;
  flex: 1 1 480px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}
.mech-right .figure-caption { max-width: 540px; }
#fig-curve { min-height: 300px; width: 100%; display: flex; justify-content: center; }

/* ---- Two-column card grids (mechanisms, outcomes, FAQ) ---- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px clamp(40px, 6vw, 80px);
}
.faq-grid { gap: 42px clamp(40px, 6vw, 80px); }

.mech-card { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--hairline); padding-top: 18px; }
.card-head { font-weight: 800; font-size: clamp(21px, 2.4vw, 24px); color: var(--ink); }
.card-body { font-weight: 400; font-size: clamp(17px, 1.9vw, 19px); line-height: 1.6; color: var(--body-2); }

/* ---- Outcomes ---- */
.quote-card { margin: 0; display: flex; flex-direction: column; gap: 14px; border-top: 1px solid var(--hairline); padding-top: 18px; }
.quote-text { font-family: var(--serif); font-style: italic; font-size: clamp(19px, 2.2vw, 21px); line-height: 1.5; color: var(--ink); }
.quote-cite { font-family: var(--sans); font-style: normal; font-size: 16px; color: var(--body-2); }
.quote-name { font-weight: 700; color: var(--ink); }

/* ---- FAQ ---- */
.faq-item { display: flex; flex-direction: column; gap: 12px; }
.faq-q { font-weight: 800; font-size: clamp(20px, 2.3vw, 23px); color: var(--ink); }
.faq-a { font-weight: 400; font-size: clamp(17px, 1.9vw, 19px); line-height: 1.6; color: var(--body-2); }

/* ---- 7 PREPARED BY ---- */
.prepared { display: flex; gap: clamp(36px, 5vw, 64px); align-items: center; flex-wrap: wrap; }
.portrait {
  width: 340px;
  max-width: 100%;
  height: auto;
  flex-shrink: 0;
  object-fit: cover;
  display: block;
}
.prepared-body { flex: 1 1 400px; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
.prepared-name { font-weight: 800; font-size: clamp(30px, 3.6vw, 40px); letter-spacing: -0.02em; color: var(--ink); }
.prepared-text { font-weight: 400; font-size: clamp(18px, 2vw, 20px); line-height: 1.6; color: var(--ink); max-width: 620px; }
.prepared-link {
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 5px;
  align-self: flex-start;
}

/* ---- FINAL CTA ---- */
.final-cta-wrap {
  border-top: 2.5px solid var(--ink);
  padding-top: clamp(56px, 8vw, 88px);
  padding-bottom: clamp(52px, 7vw, 72px);
  display: flex;
  justify-content: center;
}
.final-cta {
  padding: clamp(36px, 5vw, 56px) clamp(28px, 5vw, 72px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
  max-width: 860px;
  width: 100%;
  text-align: center;
}
.final-cta .warn-row { justify-content: center; }
.final-copy {
  font-weight: 400;
  font-size: clamp(18px, 2.2vw, 21px);
  line-height: 1.55;
  color: var(--ink);
  max-width: 640px;
}

/* ---- THE REFILL ---- */
.refill {
  border-top: 1px solid var(--hairline);
  padding-top: clamp(40px, 5vw, 52px);
  padding-bottom: clamp(48px, 6vw, 64px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}
.refill-copy { display: flex; flex-direction: column; gap: 8px; }
.refill-title { font-weight: 800; font-size: clamp(19px, 2.2vw, 21px); letter-spacing: 0.05em; color: var(--ink); }
.refill-strap { font-weight: 400; font-size: clamp(16px, 1.8vw, 18px); color: var(--body-2); max-width: 560px; }
.refill-form { display: flex; gap: 12px; flex-wrap: wrap; }
.refill-input {
  font-family: var(--sans);
  font-size: 17px;
  color: var(--ink);
  border: 1.5px solid var(--ink);
  background: var(--paper);
  padding: 14px 18px;
  width: 280px;
  max-width: 100%;
  outline: none;
  border-radius: 0;
}
.refill-form .btn-ink { padding: 15px 30px; }

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--hairline);
  padding-top: 34px;
  padding-bottom: 44px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-strap { font-family: var(--serif); font-style: italic; font-size: 17px; color: var(--muted); }
.footer-link { font-weight: 400; font-size: 16px; color: var(--muted); text-decoration: none; }
.footer-link:hover { color: var(--red); }

/* ================= RESPONSIVE ================= */

/* Hero + side stack */
@media (max-width: 1000px) {
  .hero-cols { flex-direction: column; align-items: stretch; }
  .hero-box, .hero-side { flex: 1 1 auto; max-width: none; }
  .hero-side { align-items: flex-start; }
}

/* Two-column grids collapse */
@media (max-width: 760px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* Dosage rows stack */
@media (max-width: 640px) {
  .dose-row { flex-direction: column; gap: 10px; }
  .dose-key { width: auto; max-width: none; }
  .dose-body { max-width: none; }
}

/* Admin table cells stack with top borders */
@media (max-width: 560px) {
  .admin { flex-direction: column; }
  .admin-cell,
  .admin-cell--wide,
  .admin-cell--pad {
    border-left: 0;
    border-top: 1px solid var(--ink);
    padding: 12px 0 12px clamp(24px, 3vw, 38px);
  }
  .admin-cell:first-child { border-top: 0; }
}

/* Small-screen refill: button full row under input */
@media (max-width: 460px) {
  .refill-input { width: 100%; }
  .refill-form .btn-ink { flex: 1 1 auto; text-align: center; }
}