/* ============================================================
   TFP SPA — Components (header, footer, shared blocks)
   ============================================================ */

/* ============ HEADER / NAV (centered split-nav) ============ */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: transform var(--dur) var(--ease-out),
              background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out);
  border-bottom: 1px solid transparent;
  color: var(--ink);
}
.header.is-scrolled {
  background: color-mix(in srgb, var(--c-beige) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}
.header.is-hidden { transform: translateY(-100%); }

.header__inner {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--sp-6);
}
.header__logo { justify-self: center; line-height: 0; }
.header__logo img { height: 26px; width: auto; }
.header__logo .logo--light { display: none; }

.nav { display: contents; }
.nav__list { display: flex; align-items: center; gap: clamp(0.9rem, 1.8vw, 2rem); }
.nav--left  .nav__list { justify-content: flex-start; }
.nav--right .nav__list { justify-content: flex-end; }
.nav__list a {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: var(--ls-nav);
  color: inherit;
  position: relative;
  padding-block: 0.4em;
}
.nav__list a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right;
  transition: transform var(--dur) var(--ease-out);
}
.nav__list a:not(.btn):hover::after,
.nav__list a[aria-current="page"]:not(.btn)::after { transform: scaleX(1); transform-origin: left; }
.nav__list .btn { padding: 0.7em 1.5em; border-color: currentColor; }
.nav__list .btn:hover { background: var(--ink); color: var(--c-cream); border-color: var(--ink); }

.nav-toggle {
  display: none;
  grid-column: 3; justify-self: end;
  width: 30px; height: 18px; position: relative;
}
.nav-toggle span {
  position: absolute; left: 0; width: 100%; height: 1px; background: currentColor;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}
.nav-toggle span:nth-child(1) { top: 4px; }
.nav-toggle span:nth-child(2) { bottom: 4px; }
body.nav-open .nav-toggle span:nth-child(1) { top: 8px; transform: rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { bottom: 9px; transform: rotate(-45deg); }

@media (max-width: 860px) {
  .header__inner { grid-template-columns: 1fr auto; row-gap: 0; }
  .header__logo { justify-self: start; grid-row: 1; grid-column: 1; }
  .nav-toggle { display: inline-flex; grid-row: 1; }
  .nav { display: none; grid-column: 1 / -1; grid-row: 2; }
  body.nav-open .header { height: 100dvh; background: #141210; color: var(--c-cream); align-items: flex-start; padding-top: var(--sp-6); }
  body.nav-open .header__logo .logo--dark { display: none; }
  body.nav-open .header__logo .logo--light { display: block; }
  body.nav-open .nav { display: flex; }
  body.nav-open .nav__list { flex-direction: column; align-items: flex-start; gap: var(--sp-4); margin-top: var(--sp-8); }
  body.nav-open .nav__list a { font-family: var(--font-display); font-size: 1.6rem; text-transform: none; letter-spacing: 0; }
  body.nav-open .nav--right .nav__list { margin-top: var(--sp-4); }
  .nav__list .btn { padding: 0.7em 1.5em; }
}

/* ---- Light-on-dark contexts: over-hero (home) + .header--dark (interior) ---- */
.header--over-hero:not(.is-scrolled),
.header--dark { color: var(--c-cream); }
.header--dark { background: #141210; border-bottom-color: rgba(252,250,241,0.10); }

.header--over-hero:not(.is-scrolled) .header__logo .logo--dark,
.header--dark .header__logo .logo--dark { display: none; }
.header--over-hero:not(.is-scrolled) .header__logo .logo--light,
.header--dark .header__logo .logo--light { display: block; }

.header--dark .nav__list .btn:hover,
.header--over-hero:not(.is-scrolled) .nav__list .btn:hover { background: var(--c-cream); color: var(--ink); border-color: var(--c-cream); }

/* ============ FOOTER ============ */
.footer { background: var(--bg); color: var(--ink); }

.footer__strip {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: clamp(10px, 1.4vw, 28px);
  margin-bottom: clamp(3rem, 6vw, 6rem);
}
/* Figma staggers heights: positions 1, 6, 9 sit shorter + centred */
.footer__strip img { width: 100%; height: clamp(150px, 12vw, 233px); object-fit: cover; align-self: center; }
.footer__strip img:nth-child(1),
.footer__strip img:nth-child(6),
.footer__strip img:nth-child(9) { height: clamp(110px, 8.8vw, 169px); }

.footer__main {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: var(--sp-8);
  padding-bottom: var(--sp-10);
}
.footer__news h2 {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: var(--ls-caps);
  margin-bottom: var(--sp-3);
}
.footer__news .lede { font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.04em; max-width: 46ch; margin-bottom: var(--sp-5); }
.news-form { display: flex; align-items: center; gap: var(--sp-4); border-bottom: 1px solid var(--ink); max-width: 393px; padding-bottom: 0.5rem; }
.news-form input {
  flex: 1; background: none; border: none;
  font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.1em;
}
.news-form input::placeholder { color: var(--ink-faint); }
.news-form button { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.1em; }
.news-consent { font-size: var(--fs-eyebrow); color: var(--ink); line-height: 1.4; margin-top: var(--sp-4); max-width: 366px; display: flex; gap: 0.6rem; }
.news-consent input { margin-top: 2px; accent-color: var(--accent); }

.footer__col h3 {
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: var(--ls-caps);
  color: var(--ink-faint);
  margin-bottom: var(--sp-4);
}
.footer__col ul { display: grid; gap: 0.55rem; }
.footer__col a {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: var(--ls-nav);
}
.footer__col a:hover { color: var(--accent); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--sp-6);
  border-top: 1px solid var(--line);
}
.footer__bottom small { font-size: var(--fs-legal); text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-soft); }
.footer__bottom img { height: 78px; width: auto; opacity: 0.92; } /* TFPS monogram, Figma ~95px */

/* Footer responsive — lives here (not home.css) so ALL pages inherit it */
@media (max-width: 900px) {
  .footer__main { grid-template-columns: 1fr 1fr; }
  .footer__news { grid-column: 1 / -1; }
  .footer__strip { grid-template-columns: repeat(4, 1fr); }
  .footer__strip img:nth-child(n+5) { display: none; }
}
@media (max-width: 560px) {
  .footer__main { grid-template-columns: 1fr; }
  .footer__strip { grid-template-columns: repeat(2, 1fr); }
  .footer__strip img:nth-child(n+3) { display: none; }
  .footer__bottom { flex-direction: column; gap: var(--sp-4); align-items: flex-start; }
}

/* ============ SHARED BLOCKS ============ */

/* eyebrow + headline pair */
.section-head { max-width: 760px; }
.section-head .eyebrow { display: block; margin-bottom: var(--sp-4); }
.section-head h2 + p { margin-top: var(--sp-5); }

/* media (image with placeholder note) */
.media { overflow: hidden; background: var(--surface); }
.media img { width: 100%; height: 100%; object-fit: cover; }
.media--tall { aspect-ratio: 3/4; }
.media--portrait { aspect-ratio: 4/5; }
.media--landscape { aspect-ratio: 4/3; } /* Figma card images ~393x287 */
.media--wide { aspect-ratio: 16/9; }
.media--square { aspect-ratio: 1/1; }

/* placeholder ribbon (dev only — removed when real assets land) */
[data-placeholder] { position: relative; }
[data-placeholder]::after {
  content: "PLACEHOLDER";
  position: absolute; top: 8px; left: 8px;
  font-size: 8px; letter-spacing: 0.12em;
  background: rgba(70,82,65,0.75); color: var(--c-cream);
  padding: 3px 6px; pointer-events: none;
}
body.assets-ready [data-placeholder]::after { display: none; }

/* card with image + label */
.card .media { margin-bottom: var(--sp-4); }
.card h4 { font-family: var(--font-sans); font-size: var(--fs-sm); font-weight: 400; text-transform: uppercase; letter-spacing: var(--ls-nav); margin-bottom: var(--sp-2); }
.card p { font-size: var(--fs-body); color: var(--ink-soft); }

/* numbered steps */
.steps { display: grid; gap: var(--sp-6); }
.step { display: grid; grid-template-columns: auto 1fr; gap: var(--sp-4); align-items: start; }
.step__num { font-family: var(--font-display); font-weight: 300; font-size: var(--fs-h3); color: var(--accent-warm); line-height: 1; }
.step h4 { font-family: var(--font-sans); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: var(--ls-nav); font-weight: 400; margin-bottom: var(--sp-2); }
.step p { font-size: var(--fs-body); color: var(--ink-soft); }

/* feature columns (why doctor-led) */
.feature { }
.feature__icon { width: 28px; height: 28px; margin-bottom: var(--sp-4); color: var(--accent); }
.feature h4 { font-family: var(--font-sans); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: var(--ls-nav); font-weight: 400; margin-bottom: var(--sp-3); }
.feature p { font-size: var(--fs-body); color: var(--ink-soft); }

/* pill list (treatment chips) */
.pill-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.pill-list li {
  font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.08em;
  border: 1px solid var(--line); padding: 0.5em 1em; color: var(--ink-soft);
}

/* tone band — green mist / cream alternation */
.band-cream  { background: var(--surface); }
.band-beige  { background: var(--c-beige); }
.band-mist   { background: var(--accent); color: var(--c-cream); }
.band-mist .eyebrow, .band-mist .lede, .band-mist p { color: rgba(252,250,241,0.78); }
.band-mist h1, .band-mist h2, .band-mist h3, .band-mist h4 { color: var(--c-cream); }