/* =========================================================
   Frost & Ink, set to Apple's DESIGN.md rules:
   - one interactive colour (Action Blue)
   - 400 / 600 weights only, tight display tracking, 17px body
   - no shadows on UI; depth comes from blur + hairlines
   - radius grammar: 8 (utility), 18 (cards), pill (actions)
   ========================================================= */
:root {
  --ink: #1d1d1f;
  --ink-80: #333336;
  --ink-48: #6e6e73;
  --parchment: #f5f5f7;
  --blue: #0066cc;
  --blue-focus: #0071e3;
  --hairline: rgba(0, 0, 0, .08);
  --glass: rgba(245, 245, 247, .72);
  --glass-strong: rgba(250, 250, 252, .82);
  --chip: rgba(210, 210, 215, .64);
  --blur: saturate(180%) blur(20px);

  --r-sm: 8px;
  --r-lg: 18px;
  --r-pill: 9999px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --spring: cubic-bezier(.34, 1.4, .64, 1);
  --gutter: clamp(16px, 4vw, 56px);
  --nav-h: 56px;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { height: 100%; overscroll-behavior: none; } /* no pull-to-refresh bounce on swipes */
body {
  margin: 0;
  overflow: hidden;
  background: var(--parchment);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.44;
  letter-spacing: -.022em;
  font-feature-settings: "ss03", "cv11";
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

button { font: inherit; letter-spacing: inherit; }
:focus-visible { outline: 2px solid var(--blue-focus); outline-offset: 3px; }

/* ---------- Intro screen ---------- */
.intro {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: var(--parchment);
}
.intro-btn {
  border: 0;
  padding: 15px 30px;
  border-radius: var(--r-pill);
  background: var(--blue);
  color: #fff;
  font-size: 17px;
  cursor: pointer;
  transition: transform .25s var(--ease), background .2s;
}
.intro-btn:hover { background: var(--blue-focus); }
.intro-btn:active { transform: scale(.95); }

/* ---------- Fullscreen photography ---------- */
.stage { position: fixed; inset: 0; overflow: hidden; }
.bg {
  position: absolute;
  inset: -3%;
  background-color: var(--parchment);
  background-size: cover;
  background-position: center;
  will-change: transform, opacity, filter;
  z-index: 1;
}
.bg:has(.scene-media) { inset: 0; }
.scene-media {
  position: absolute;
  left: 0;
  top: 0;
  max-width: none;
  object-fit: cover;
  transform-origin: 0 0;
  will-change: transform;
  user-select: none;
  pointer-events: none;
}
/* Functional legibility veil behind the card, not decoration. */
.scrim {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(to top, rgba(245, 245, 247, .55), rgba(245, 245, 247, 0) 50%);
}
.ph-tag {
  position: fixed;
  right: var(--gutter);
  bottom: var(--gutter);
  z-index: 4;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  font-size: 12px;
  letter-spacing: -.01em;
  color: var(--ink-48);
  background: var(--chip);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
}

/* ---------- Frosted top bar (Apple sub-nav) ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  height: 56px;
  padding: 0 var(--gutter);
  background: var(--glass);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--hairline);
}
.brand {
  justify-self: start;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink);
  text-decoration: none;
}

.tabs {
  position: relative;
  display: flex;
  gap: 2px;
  padding: 3px;
  border-radius: var(--r-pill);
  background: rgba(0, 0, 0, .05);
}
.tab {
  position: relative;
  z-index: 1;
  border: 0;
  background: none;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--ink-80);
  white-space: nowrap;
  cursor: pointer;
  transition: color .3s var(--ease);
}
.tab[aria-selected="true"] { color: var(--ink); font-weight: 600; }
.tab .short { display: none; }
.tab-indicator {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 0;
  width: 0;
  border-radius: var(--r-pill);
  background: #fff;
  border: 1px solid var(--hairline);
  transition: transform .6s var(--spring), width .6s var(--spring), opacity .3s var(--ease);
}
.tab-indicator.no-anim { transition: none; }
.tab-indicator.off { opacity: 0; }

.cta {
  justify-self: end;
  border: 0;
  padding: 7px 18px;
  border-radius: var(--r-pill);
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  transition: transform .25s var(--ease);
}
.cta:active { transform: scale(.95); }
.cta[aria-current="page"] { background: var(--ink); }

/* ---------- Glass card ---------- */
.card {
  position: fixed;
  left: var(--gutter);
  bottom: var(--gutter);
  z-index: 5;
  /* Narrows on mid-size screens so the camera has room beside it. */
  width: min(clamp(360px, 42vw, 580px), calc(100vw - 2 * var(--gutter)));
  padding: 32px 32px 18px;
  border-radius: var(--r-lg);
  overflow: hidden;
  transform-origin: bottom left;
  background: var(--glass-strong);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid rgba(255, 255, 255, .7);
  outline: 1px solid var(--hairline);
  outline-offset: -1px;
}
.card-body {
  max-height: calc(100dvh - 240px);
  overflow-y: auto;
  scrollbar-width: none;
}
.card-body::-webkit-scrollbar { display: none; }

.eyebrow {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.016em;
  color: var(--ink-48);
}
.title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.07;
  font-weight: 600;
  letter-spacing: -.035em;
  text-wrap: balance;
}
.text {
  margin: 0;
  max-width: 44ch;
  color: var(--ink-80);
  text-wrap: pretty;
}
.note { margin: 16px 0 0; font-size: 14px; color: var(--ink-48); }
.site-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  color: var(--blue);
  font-size: 17px;
  text-decoration: none;
}
.site-link:hover { text-decoration: underline; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chip {
  padding: 6px 14px;
  border-radius: var(--r-pill);
  font-size: 14px;
  background: #fff;
  border: 1px solid var(--hairline);
  color: var(--ink);
}

.card-foot {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
}
.progress { display: flex; gap: 6px; flex: 1; }
.seg {
  position: relative;
  flex: 1;
  height: 20px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.seg::before, .seg::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 8.5px;
  height: 3px;
  border-radius: 3px;
}
.seg::before { background: rgba(0, 0, 0, .1); }
.seg::after {
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .7s var(--ease);
}
.seg.done::after { transform: scaleX(1); }

.counter {
  min-width: 52px;
  text-align: right;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-48);
}
.arrows { display: flex; gap: 8px; }
.arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 44px;
  min-width: 44px;
  padding: 0;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--chip);
  color: var(--ink);
  cursor: pointer;
  transition: transform .25s var(--ease), opacity .2s;
}
.arrow:active:not(:disabled) { transform: scale(.95); }
.arrow:disabled { opacity: .35; cursor: default; }
.arrow-primary { background: var(--blue); color: #fff; }
.arrow-primary.wide { padding: 0 14px 0 20px; font-size: 17px; white-space: nowrap; }
.arrows { flex-shrink: 0; }            /* buttons keep their size... */
.progress { min-width: 0; }            /* ...the progress bar gives way instead */
.card-foot.is-last .counter { display: none; } /* full bar already says "last slide" */

/* ---------- Contact ---------- */
/* Contact card sits centred in the space below the nav bar. */
.card.contact {
  top: calc(var(--nav-h) + 16px);
  bottom: 16px;
  left: var(--gutter);
  right: var(--gutter);
  margin: auto;
  height: fit-content;
  width: min(560px, calc(100vw - 2 * var(--gutter)));
  transform-origin: center;
}
/* No slide controls under the contact card, so it can use that height. */
.contact .card-body { max-height: calc(100dvh - var(--nav-h) - 84px); }
/* Shorter laptop screens: tighten the contact card so it fits without scrolling. */
@media (max-height: 760px) and (min-width: 641px) {
  .contact .profile { margin-bottom: 14px; }
  .contact .avatar { width: 64px; height: 64px; }
  .contact .title { margin-bottom: 10px; }
  .contact .links { margin-top: 16px; }
  .contact .link { padding: 11px 16px; }
  .contact .fine { margin-top: 12px; }
}
.profile { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.avatar {
  width: 88px;
  height: 88px;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #fff;
  outline: 1px solid var(--hairline);
}
.profile-name { margin: 0; font-size: 19px; font-weight: 600; }
.profile-role { margin: 2px 0 0; font-size: 14px; color: var(--ink-48); }
.links { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; margin-top: 24px; }
.link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: #fff;
  border: 1px solid var(--hairline);
  color: var(--ink);
  text-decoration: none;
  transition: transform .25s var(--ease);
}
.link:active { transform: scale(.98); }
.link svg { color: var(--blue); flex-shrink: 0; }
.link-label { width: 72px; flex-shrink: 0; font-size: 14px; color: var(--ink-48); }
.link-value { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.copied { display: none; font-size: 13px; font-weight: 600; color: var(--blue); white-space: nowrap; }
.link.is-copied .copied { display: inline; }
.link.is-copied .link-value { opacity: .35; }
.email-alt { margin: 12px 0 0; font-size: 14px; color: var(--ink-48); }
.email-alt a { color: var(--blue); text-decoration: none; }
.email-alt a:hover { text-decoration: underline; }
.fine { margin: 22px 0 6px; font-size: 12px; color: var(--ink-48); }

/* ---------- Tablet / phone ---------- */
@media (max-width: 833px) {
  :root { --nav-h: 108px; } /* two-row nav */
  .nav {
    grid-template-columns: 1fr auto;
    grid-template-areas: "brand cta" "tabs tabs";
    height: auto;
    row-gap: 10px;
    padding: 10px var(--gutter) 12px;
  }
  .brand { grid-area: brand; font-size: 19px; }
  .cta { grid-area: cta; }
  .tabs { grid-area: tabs; }
  .tab { flex: 1; padding: 7px 4px; }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .tab .full { display: none; }
  .tab .short { display: inline; }
  .card {
    right: var(--gutter);
    width: auto;
    bottom: max(var(--gutter), env(safe-area-inset-bottom));
    padding: 24px 20px 12px;
  }
  .card-body { max-height: calc(100dvh - 280px); }
  .contact .card-body { max-height: calc(100dvh - 180px); }
  .profile { gap: 14px; margin-bottom: 16px; }
  .avatar { width: 64px; height: 64px; }
  .links { margin-top: 18px; }
  .link { padding: 12px 14px; }
  .link-label { display: none; } /* the values say what they are */
  .link-value { font-size: 16px; }
  .fine { margin-top: 14px; }
  .title { font-size: 30px; letter-spacing: -.03em; }
  .chip { font-size: 13px; }
  .ph-tag { top: 112px; bottom: auto; }

  /* --- Phone polish: slimmer nav, compact card, more room for the visuals --- */
  :root { --nav-h: 94px; }
  .nav { padding: 8px var(--gutter) 10px; row-gap: 8px; }
  .brand { font-size: 18px; }
  .cta { padding: 6px 14px; font-size: 13px; }
  .tabs { padding: 2px; }
  .tab { padding: 6px 4px; font-size: 13px; }
  .tab-indicator { top: 2px; bottom: 2px; }

  #card { padding: 18px 18px 8px; border-radius: 20px; }
  #card .eyebrow { font-size: 13px; margin-bottom: 4px; }
  #card .title { font-size: 25px; line-height: 1.1; margin-bottom: 8px; }
  #card .text { font-size: 15px; line-height: 1.45; }
  #card .chips { display: none; }         /* keep the phone card to the story */
  #card .note { margin-top: 10px; font-size: 13px; }
  #card .site-link { margin-top: 10px; font-size: 15px; }
  #card .card-foot { margin-top: 12px; padding-top: 8px; }
  #card .card-body { max-height: calc(100dvh - 300px); }
  .arrow { height: 40px; min-width: 40px; }
  .arrow-primary.wide { padding: 0 10px 0 16px; font-size: 15px; }
  .counter { min-width: 0; }
}
@media (max-width: 419px) {
  .title { font-size: 28px; }
  #card .title { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; }
}