/* ---------------------------------------------------------------------------
   Neutral by design.
   The palette is a warm grayscale with no brand hue, so this site sits
   comfortably next to any practice's colors without competing with them.
--------------------------------------------------------------------------- */

:root {
  --bg:        #f6f6f4;
  --surface:   #ffffff;
  --surface-2: #fbfbfa;
  --border:    #e4e4e0;
  --border-2:  #d2d2cc;
  --ink:       #1b1b19;
  --ink-2:     #4a4a45;
  --muted:     #77776f;
  --invert-bg: #1b1b19;
  --invert-fg: #f6f6f4;
  --scrim:     rgba(20, 20, 18, .55);
  --shadow-sm: 0 1px 2px rgba(20,20,18,.05), 0 1px 1px rgba(20,20,18,.04);
  --shadow-md: 0 4px 16px rgba(20,20,18,.09), 0 1px 3px rgba(20,20,18,.05);
  --shadow-lg: 0 24px 60px rgba(20,20,18,.28);
  --radius:    10px;
  --maxw:      1140px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:        #141413;
    --surface:   #1d1d1c;
    --surface-2: #232322;
    --border:    #302f2d;
    --border-2:  #414040;
    --ink:       #f2f1ee;
    --ink-2:     #c9c8c2;
    --muted:     #928f88;
    --invert-bg: #f2f1ee;
    --invert-fg: #141413;
    --scrim:     rgba(0, 0, 0, .7);
    --shadow-sm: none;
    --shadow-md: 0 4px 16px rgba(0,0,0,.4);
    --shadow-lg: 0 24px 60px rgba(0,0,0,.6);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
        "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* --- top bar -------------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar .wrap {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 10px 16px; min-height: 60px;
}
.back  { order: 1; }
.tabs  { order: 2; }
.brand { order: 3; }

.back {
  display: none; align-items: center; gap: 8px;
  padding: 8px 14px 8px 11px;
  border: 1px solid var(--border-2); border-radius: 999px;
  background: var(--surface); color: var(--ink);
  font-size: 14px; font-weight: 500; text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  white-space: nowrap; max-width: 62vw; overflow: hidden; text-overflow: ellipsis;
}
.back[href] { display: inline-flex; }
.back:hover { transform: translateX(-2px); box-shadow: var(--shadow-md); border-color: var(--ink-2); }
.back svg { flex: none; }

.brand { margin-left: auto; text-align: right; line-height: 1.2; white-space: nowrap; }

/* Section switcher. The two pages are separate documents, so these are plain
   links; referral.js rewrites them to carry the ?src= identifier through. */
.tabs {
  display: inline-flex; gap: 2px; padding: 3px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 999px;
}
.tabs a {
  padding: 6px 15px; border-radius: 999px;
  font-size: 13.5px; font-weight: 500; line-height: 1.3;
  color: var(--ink-2); text-decoration: none; white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.tabs a:hover { color: var(--ink); background: var(--surface); }
.tabs a[aria-current="page"] {
  background: var(--invert-bg); color: var(--invert-fg);
}
.tabs a[aria-current="page"]:hover { background: var(--invert-bg); }
.brand b { display: block; font-size: 14px; font-weight: 600; letter-spacing: -.01em; }
.brand span { display: block; font-size: 12px; color: var(--muted); }

/* --- hero ----------------------------------------------------------------- */
.hero { padding: 56px 0 32px; }
.eyebrow {
  font-size: 12px; font-weight: 600; letter-spacing: .09em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 14px;
}
.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(30px, 5vw, 46px); line-height: 1.1;
  letter-spacing: -.025em; font-weight: 650;
}
.lead { margin: 0; max-width: 60ch; font-size: 17px; color: var(--ink-2); }

/* --- search --------------------------------------------------------------- */
.searchwrap { position: relative; margin-top: 28px; max-width: 480px; }
.searchwrap svg { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
#search {
  width: 100%; padding: 13px 44px 13px 43px;
  font-size: 15px; font-family: inherit; color: var(--ink);
  background: var(--surface); border: 1px solid var(--border-2);
  border-radius: 999px; box-shadow: var(--shadow-sm);
  transition: border-color .15s ease, box-shadow .15s ease;
}
#search::placeholder { color: var(--muted); }
#search:focus { outline: none; border-color: var(--ink-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ink) 12%, transparent); }
.clearsearch {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  display: none; place-items: center; width: 28px; height: 28px;
  border: 0; border-radius: 50%; background: transparent; color: var(--muted); cursor: pointer;
}
.clearsearch:hover { background: var(--bg); color: var(--ink); }
.clearsearch.on { display: grid; }

/* --- filter chips --------------------------------------------------------- */
.filters {
  position: sticky; top: var(--topbar-h, 60px); z-index: 30;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
  margin-top: 32px;
}
.chips {
  display: flex; gap: 8px; padding: 14px 0;
  overflow-x: auto; scrollbar-width: none;
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: none; padding: 7px 15px;
  font: 500 13.5px/1.3 inherit; color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--border-2);
  border-radius: 999px; cursor: pointer; white-space: nowrap;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.chip:hover { border-color: var(--ink-2); color: var(--ink); }
.chip[aria-pressed="true"] {
  background: var(--invert-bg); color: var(--invert-fg); border-color: var(--invert-bg);
}
.chip .n { opacity: .5; margin-left: 6px; font-variant-numeric: tabular-nums; }

/* --- results -------------------------------------------------------------- */
main { padding: 8px 0 96px; }
.count { padding: 22px 0 6px; font-size: 13px; color: var(--muted); }

.group { margin-top: 30px; }
.group > h2 {
  display: flex; align-items: baseline; gap: 10px;
  margin: 0 0 16px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px; font-weight: 600; letter-spacing: .07em;
  text-transform: uppercase; color: var(--muted);
}
.group > h2 .n { font-size: 12px; letter-spacing: 0; opacity: .7; }

.grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
}

.card {
  display: block; width: 100%; text-align: left;
  padding: 16px; font: inherit; color: var(--ink); cursor: pointer;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  -webkit-appearance: none; appearance: none;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
/* The flex layout lives here, not on the <button>: Safari does not stretch a
   button's flex children, which collapsed the thumbnail to a small box. */
.card-inner {
  display: flex; flex-direction: column; align-items: stretch; gap: 14px;
  /* Fill the stretched card: a <button> centres its content box vertically, so
     a short card-inner would drift down and thumbnails across a row would not
     line up. */
  width: 100%; height: 100%;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--border-2); }
.card:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.card .thumb {
  position: relative; width: 100%; aspect-ratio: 16/9; border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: grid; place-items: center; overflow: hidden;
}
.card .poster {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0;
  transition: opacity .3s ease, transform .35s ease;
}
.card .poster.ready { opacity: 1; }        /* fade in, so no flash of empty tile */
.card:hover .poster { transform: scale(1.035); }
.card .thumb::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 50% 115%, color-mix(in srgb, var(--ink) 7%, transparent), transparent 62%);
}
/* Group glyph, sitting behind the play button like a watermark. */
.card .glyph {
  position: absolute; right: -6%; bottom: -12%;
  width: 58%; height: auto; color: var(--ink); opacity: .13;
  transition: opacity .16s ease, transform .16s ease;
}
.card:hover .glyph { opacity: .2; transform: translate(-2px, -2px); }
.play {
  position: relative; z-index: 1;
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border-2);
  display: grid; place-items: center; color: var(--ink);
  box-shadow: 0 2px 10px rgba(20,20,18,.28);
  transition: transform .16s ease, background .16s ease, color .16s ease;
}
.card:hover .play { transform: scale(1.08); background: var(--invert-bg); color: var(--invert-fg); border-color: var(--invert-bg); }
.card .title {
  display: block; font-size: 15px; font-weight: 570;
  line-height: 1.35; letter-spacing: -.008em;
}
.card .meta { display: block; margin-top: -6px; font-size: 12.5px; color: var(--muted); }

.empty { padding: 60px 0; text-align: center; color: var(--muted); }
.empty b { display: block; color: var(--ink); font-size: 17px; margin-bottom: 6px; }

/* --- video dialog --------------------------------------------------------- */
dialog#player {
  width: min(940px, calc(100vw - 32px));
  padding: 0; border: 1px solid var(--border); border-radius: 14px;
  background: var(--surface); color: var(--ink);
  box-shadow: var(--shadow-lg);
}
dialog#player::backdrop { background: var(--scrim); backdrop-filter: blur(3px); }
dialog#player[open] { animation: pop .18s cubic-bezier(.2,.7,.3,1); }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.985); } }

.phead {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 16px 16px 14px 20px; border-bottom: 1px solid var(--border);
}
.phead h2 { margin: 0; font-size: 17px; font-weight: 600; letter-spacing: -.012em; line-height: 1.3; }
.phead p { margin: 3px 0 0; font-size: 12.5px; color: var(--muted); }
.close {
  flex: none; margin-left: auto; display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--border-2); background: var(--surface);
  color: var(--ink-2); cursor: pointer;
}
.close:hover { background: var(--invert-bg); color: var(--invert-fg); border-color: var(--invert-bg); }
.pbody { padding: 16px 20px 20px; }
.frame { aspect-ratio: 16/9; width: 100%; background: #000; border-radius: 8px; overflow: hidden; }
.frame iframe { width: 100%; height: 100%; border: 0; display: block; }

/* --- footer --------------------------------------------------------------- */
footer {
  border-top: 1px solid var(--border);
  padding: 26px 0 48px; font-size: 12.5px; color: var(--muted);
}
footer p { margin: 0 0 8px; max-width: 78ch; }
footer .sig { color: var(--ink-2); font-weight: 500; }

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .brand span { display: none; }
  .brand b { font-size: 13px; }
  .back-prefix { display: none; }        /* the arrow already says "back" */
  .back { font-size: 13.5px; padding: 7px 12px 7px 9px; max-width: 58vw; }
  .topbar .wrap { padding-top: 9px; padding-bottom: 9px; }
  .brand { order: 2; }
  .tabs  { order: 3; flex: 1 0 100%; justify-content: stretch; }
  .tabs a { flex: 1; text-align: center; padding: 7px 10px; }

  /* Tighten the lead-in so cards are reachable without a long scroll. */
  .hero { padding: 24px 0 16px; }
  .hero h1 { font-size: 27px; }
  .eyebrow { margin-bottom: 10px; }
  .lead { font-size: 15px; }
  .searchwrap { margin-top: 18px; max-width: none; }
  #search { padding: 11px 42px 11px 40px; font-size: 15px; }
  .filters { margin-top: 18px; }
  .chips { padding: 11px 0; }
  .count { padding: 14px 0 2px; }
  .group { margin-top: 20px; }
  .group > h2 { margin-bottom: 12px; }

  .grid { grid-template-columns: 1fr; gap: 10px; }
  .card { padding: 10px; }
  .card-inner { gap: 10px; }
  .card .title { font-size: 15.5px; }
  .card .meta { margin-top: -4px; }
}

/* Two across on larger phones and small tablets. */
@media (min-width: 480px) and (max-width: 640px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .card .glyph { opacity: .17; }
  :root:not([data-theme="light"]) .card:hover .glyph { opacity: .26; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}