/* =============================================================
   FertilityBridge International, LLC
   Design tokens + layout. Native CSS, no framework.

   Radius rule (locked):
     - interactive (buttons, pills): 999px
     - containers (cards, panels, media): 14px
     - small chips/inputs: 10px
   Accent rule (locked): one accent (teal) across the whole page.
   ============================================================= */

/* ---------- Tokens ---------- */
:root {
  color-scheme: light dark;

  --ink:            #16171b;
  --ink-soft:       #565962;
  --ink-faint:      #8a8d96;
  --bg:             #f5f4f1;
  --surface:        #ffffff;
  --surface-alt:    #ecebe6;
  --line:           #e1dfd9;
  --line-strong:    #cdcac2;

  /* Claret: picked off the passport photography, deliberately not medical teal */
  --accent:         #9b2242;
  --accent-strong:  #7a1733;
  --accent-tint:    #f7e8ec;
  --accent-contrast:#ffffff;

  /* Single deliberate dark block (case-request section) */
  --ink-block:      #16171b;
  --on-ink:         #f2f1ee;
  --on-ink-soft:    #a2a3a9;
  --on-ink-line:    #2c2d33;

  --notice-bg:      #f7e8ec;
  --notice-line:    #e0bcc6;
  --notice-ink:     #6d1a30;

  --radius:         14px;
  --radius-sm:      10px;
  --radius-pill:    999px;

  --shadow-sm: 0 1px 2px rgba(13, 28, 26, .05), 0 4px 14px rgba(13, 28, 26, .04);
  --shadow-md: 0 10px 30px rgba(13, 28, 26, .09);

  --measure: 62ch;
  --shell: 1220px;
  --ease: cubic-bezier(.16, 1, .3, 1);

  --font-display: "Clash Display", ui-sans-serif, system-ui, "Segoe UI", Arial, sans-serif;
  --font-sans: "Satoshi", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", "SFMono-Regular", Menlo, monospace;
}

/* Dark is opt-in through the header toggle only (see main.js).
   The system preference does not darken the page on its own. */
:root[data-theme="dark"] {
  --ink:            #f0eeea;
  --ink-soft:       #b2b3b9;
  --ink-faint:      #8b8d95;
  --bg:             #17181c;
  --surface:        #1f2025;
  --surface-alt:    #26272d;
  --line:           #32333a;
  --line-strong:    #43444c;

  --ink-block:      #0f1013;
  --on-ink:         #f0eeea;
  --on-ink-soft:    #a2a3a9;
  --on-ink-line:    #2c2d33;

  --accent:         #f0728f;
  --accent-strong:  #f79ab0;
  --accent-tint:    #33161e;
  --accent-contrast:#1c0710;

  --notice-bg:      #2c151d;
  --notice-line:    #5a2c39;
  --notice-ink:     #f4c3cf;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, .5);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--accent); color: var(--accent-contrast); }

/* ---------- Layout primitives ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 4.5rem); }
.section--alt { background: var(--surface); border-block: 1px solid var(--line); }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 200;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: .7rem 1.1rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  transition: top .2s var(--ease);
}
.skip-link:focus-visible { top: 1rem; }

/* ---------- Typography ---------- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -.025em;
  line-height: 1.08;
  font-optical-sizing: auto;
}

.display {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1.02;
}

.section-title { font-weight: 600; }

.brand__name { font-family: var(--font-display); }

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  max-width: 18ch;
}

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--ink-soft);
  max-width: var(--measure);
}

.body-text { color: var(--ink-soft); max-width: var(--measure); }
.body-text + .body-text { margin-top: 1rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 1rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  white-space: nowrap;
  padding: .85rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  font-size: .98rem;
  cursor: pointer;
  transition: transform .18s var(--ease), background-color .18s var(--ease),
              border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--accent-strong); box-shadow: var(--shadow-md); }
.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn:active { transform: scale(.98); }

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
  .btn:active { transform: none; }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
.site-header[data-stuck="true"] {
  border-bottom-color: var(--line);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
}
@media (prefers-reduced-transparency: reduce) {
  .site-header { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; }
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 72px;
}

.brand { display: inline-flex; align-items: center; gap: .65rem; }
.brand__mark { width: 30px; height: 30px; flex: none; color: var(--accent); }
.brand__name {
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: -.02em;
}
.brand__name span { color: var(--accent); }

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.site-nav a {
  font-size: .92rem;
  color: var(--ink-soft);
  transition: color .18s var(--ease);
}
.site-nav a:hover { color: var(--ink); }

.header-tools { display: flex; align-items: center; gap: .5rem; }

.lang-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
}
.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--ink-faint);
  font: inherit;
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .04em;
  padding: .34rem .62rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease);
}
.lang-switch button:hover { color: var(--ink); }
.lang-switch button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
}

.theme-toggle,
.nav-toggle {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--surface-alt);
  color: var(--ink-soft);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.theme-toggle:hover, .nav-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg, .nav-toggle svg { width: 18px; height: 18px; }
.nav-toggle { display: none; }

@media (max-width: 900px) {
  .site-nav {
    position: fixed;
    inset: 72px 0 auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: .5rem 1.5rem 1.25rem;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .site-nav[data-open="true"] { display: flex; }
  .site-nav a {
    width: 100%;
    padding: .85rem 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--line);
  }
  .site-nav a:last-child { border-bottom: 0; }
  .nav-toggle { display: inline-grid; }
  .header-tools { margin-left: auto; }
}

@media (max-width: 480px) {
  .brand__name { font-size: .98rem; }
  .lang-switch button { padding: .34rem .48rem; }
}

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3rem, 6vw, 5.5rem) clamp(4rem, 8vw, 6rem); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__copy { max-width: 34rem; }
.hero__title { margin-bottom: 1.25rem; }
.hero__title em {
  font-style: italic;
  color: var(--accent);
  line-height: 1.1;
  padding-bottom: .12em;
  display: inline-block;
}
.hero__lede { margin-bottom: 2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; }

.hero__media {
  position: relative;
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  background: var(--surface-alt);
  isolation: isolate;
}
/* Claret block sitting behind the portrait, so the photo is not a lonely rectangle */
.hero__media::before {
  content: "";
  position: absolute;
  inset: 8% -6% -6% 12%;
  background: var(--accent);
  border-radius: var(--radius);
  z-index: -1;
}
.hero__media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 18%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.hero__badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  right: 1rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
  font-size: .86rem;
  color: var(--ink-soft);
  line-height: 1.45;
}
.hero__badge strong { color: var(--ink); font-weight: 600; }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__media { aspect-ratio: 16 / 10; order: -1; }
}

/* ---------- Notice band ---------- */
.notice {
  background: var(--notice-bg);
  border-block: 1px solid var(--notice-line);
}
.notice__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding-block: 1.6rem;
}
.notice__key {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--notice-ink);
  padding-top: .22rem;
  white-space: nowrap;
}
.notice__text { color: var(--notice-ink); max-width: 78ch; font-size: .96rem; }
.notice__text strong { font-weight: 700; }

@media (max-width: 640px) {
  .notice__inner { grid-template-columns: 1fr; gap: .5rem; }
}

/* ---------- Split content (What we do) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.split__media {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 5 / 4;
  box-shadow: var(--shadow-md);
  background: var(--surface-alt);
}
.split__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
}
.split__media:hover img { transform: scale(1.04); }
@media (prefers-reduced-motion: reduce) {
  .split__media img { transition: none; }
  .split__media:hover img { transform: none; }
}

/* Cities strip: makes the physician network concrete instead of a claim */
.cities {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 2rem;
}
.cities li {
  list-style: none;
  font-size: .88rem;
  font-weight: 500;
  padding: .45rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--accent-tint);
  color: var(--accent-strong);
}
:root[data-theme="dark"] .cities li { color: var(--accent); }

/* Single deliberate dark band on the page (case request template) */
.section--ink {
  background: var(--ink-block);
  color: var(--on-ink);
}
.section--ink h2, .section--ink .lede { color: var(--on-ink); }
.section--ink .lede { color: var(--on-ink-soft); }
.section--ink .email-panel {
  background: transparent;
  border-color: var(--on-ink-line);
  box-shadow: none;
}
.section--ink .email-panel__head {
  background: rgba(255, 255, 255, .04);
  border-bottom-color: var(--on-ink-line);
  color: var(--on-ink-soft);
}
.section--ink .email-panel__head b { color: var(--on-ink); }
.section--ink .email-panel__body { color: var(--on-ink-soft); }
.split__title { margin-bottom: 1.25rem; }

.role-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 2rem;
}
.role-grid > div { background: var(--surface); padding: 1.15rem 1.25rem; }
.role-grid dt {
  font-size: .78rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: .3rem;
}
.role-grid dd { font-size: .95rem; color: var(--ink-soft); }

@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .role-grid { grid-template-columns: 1fr; }
}

/* ---------- Process timeline ---------- */
.process { display: grid; grid-template-columns: minmax(0, 26rem) 1fr; gap: clamp(2rem, 5vw, 4rem); }
.process__intro { position: sticky; top: 120px; align-self: start; }

.steps { list-style: none; display: grid; gap: 0; }
.step {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.5rem;
  padding: 1.8rem 0;
  border-top: 1px solid var(--line);
  transition: border-color .3s var(--ease);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step:hover { border-top-color: var(--accent); }
.step__num {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  line-height: .9;
  color: var(--accent);
  letter-spacing: -.03em;
}
.step h3 { font-size: 1.12rem; margin-bottom: .45rem; }
.step p { color: var(--ink-soft); font-size: .97rem; max-width: 58ch; }

@media (max-width: 860px) {
  .process { grid-template-columns: 1fr; }
  .process__intro { position: static; }
  .step { grid-template-columns: 2.5rem 1fr; gap: .9rem; }
}

/* ---------- Sample email panel ---------- */
.email-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  max-width: 62rem;
}
.email-panel__head {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  align-items: baseline;
  padding: .9rem 1.35rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface-alt);
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--ink-faint);
}
.email-panel__head b { color: var(--ink); font-weight: 500; }
.email-panel__body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: .86rem;
  line-height: 1.7;
  color: var(--ink-soft);
  white-space: pre-wrap;
  overflow-x: auto;
}

/* ---------- Services ---------- */
.service-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.75rem, 4vw, 3.5rem);
  margin-top: 2.5rem;
}
.service-group h3 {
  font-size: .82rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 1.25rem;
}
.service-group ul { list-style: none; display: grid; gap: 1rem; }
.service-group li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .75rem;
  color: var(--ink-soft);
  font-size: .98rem;
}
.service-group li::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: .55rem;
  border-radius: 2px;
  background: var(--accent);
}

@media (max-width: 780px) { .service-groups { grid-template-columns: 1fr; } }

/* ---------- Partners ---------- */
.partners {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.partner {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.partner:hover { transform: translateY(-3px); border-color: var(--accent); }
.partner__initials {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: var(--accent-tint);
  color: var(--accent);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .02em;
  margin-bottom: 1rem;
}
.partner strong { display: block; font-weight: 600; font-size: 1.02rem; }
.partner span { font-size: .88rem; color: var(--ink-faint); }

@media (prefers-reduced-motion: reduce) { .partner:hover { transform: none; } }
@media (max-width: 860px) { .partners { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 460px) { .partners { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.contact__card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.contact__row {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: .85rem 0;
  font-size: .96rem;
}
.contact__row + .contact__row { border-top: 1px solid var(--line); }
.contact__row dt { color: var(--ink-faint); font-size: .84rem; letter-spacing: .03em; text-transform: uppercase; padding-top: .12rem; }
.contact__row dd { color: var(--ink); }
.contact__row a { color: var(--accent); }
.contact__row a:hover { text-decoration: underline; }
.contact__cta { margin-top: 1.5rem; }

@media (max-width: 860px) {
  .contact { grid-template-columns: 1fr; }
  .contact__row { grid-template-columns: 1fr; gap: .2rem; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding-block: 3rem 2rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; align-self: end; justify-content: flex-end; }
.footer-links a { font-size: .92rem; color: var(--ink-soft); }
.footer-links a:hover { color: var(--accent); }
.footer-note { color: var(--ink-soft); font-size: .95rem; max-width: 48ch; margin-top: .6rem; }
.footer-legal {
  margin-top: 1.75rem;
  font-size: .8rem;
  line-height: 1.6;
  color: var(--ink-faint);
  max-width: 90ch;
}
.footer-meta {
  margin-top: 1.5rem;
  font-size: .82rem;
  color: var(--ink-faint);
}

@media (max-width: 780px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

/* ---------- Motion: scroll reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .7s var(--ease), transform .7s var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
  }
  [data-reveal].is-visible { opacity: 1; transform: none; }

  .hero__copy > *, .hero__media {
    animation: rise .9s var(--ease) both;
    animation-delay: var(--enter-delay, 0ms);
  }
  @keyframes rise {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: none; }
  }
}

/* Language swap crossfade */
@media (prefers-reduced-motion: no-preference) {
  body[data-lang-swapping="true"] main { opacity: .35; transition: opacity .18s linear; }
  main { transition: opacity .3s linear; }
}