/* ==========================================================================
   Dr. Dio — De Materia Medica
   Implements the "Dr Dio Website" design. Tokens taken verbatim from it:
   parchment ground, deep-teal panels, gold action, Instrument Serif display
   over Outfit body with JetBrains Mono for labels.
   ========================================================================== */

:root {
  --ground:     #F6F1E6;
  --card:       #FFFDF7;
  --sunk:       #F1EADA;
  --rule:       #DDD2BE;
  --rule-soft:  #EDE6D6;
  --chip:       #E0DBC8;

  --ink:        #2E211A;
  --ink-1:      #3D2F26;
  --ink-2:      #4A3B30;
  --ink-3:      #6B5B4C;
  --ink-4:      #8A7A67;
  --ink-5:      #A08F7C;

  --teal-deep:  #0F4F4A;
  --teal-link:  #0F5F59;
  --teal:       #12857B;
  --teal-pale:  #DCEFE6;
  --teal-mid:   #A8DED0;
  --teal-soft:  #8FD3C4;
  --on-deep:    #EFF6F1;

  --gold:       #E0B03C;
  --alarm:      #B4453A;

  --serif: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --sans:  'Outfit', ui-sans-serif, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1240px;
  --bar: 70px;
}

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

html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  display: flex; flex-direction: column; min-height: 100vh;
}
a { color: var(--teal-link); }
a:hover { color: var(--gold); }
::placeholder { color: var(--ink-5); }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

@keyframes dioFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes dioPulse { 0%,100% { opacity: .35; } 50% { opacity: 1; } }
@keyframes dioRise  { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.mono-label,
.mono-eyebrow,
.mono-credit {
  font-family: var(--mono);
  text-transform: uppercase;
  margin: 0;
}
.mono-label   { font-size: 11px; letter-spacing: .16em; color: var(--ink-3); margin-bottom: 14px; }
.mono-label.light { color: var(--teal-soft); margin-bottom: 20px; }
.mono-eyebrow { font-size: 12px; letter-spacing: .18em; color: var(--teal); margin-bottom: 16px; }
.mono-credit  { font-size: 12px; letter-spacing: .04em; color: var(--ink-3); text-transform: none; }

/* ------------------------------------------------------------- topbar -- */

.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(246,241,230,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  max-width: var(--wrap); margin: 0 auto;
  padding: 14px 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.brand-badge {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  background: var(--teal-pale) url('/assets/dr-dio-primary.png') no-repeat 50% 8%;
  background-size: 210%;
}
.brand-words { display: block; }
.brand-name { display: block; font-family: var(--serif); font-size: 24px; line-height: 1; }
.brand-sub {
  display: block; font-family: var(--mono); font-size: 10px;
  letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-top: 3px;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav-btn {
  font-family: var(--sans); font-size: 15px;
  background: none; border: none; color: var(--ink-2);
  padding: 9px 16px; border-radius: 999px; cursor: pointer; white-space: nowrap;
  transition: color .15s, background .15s;
}
.nav-btn:hover { color: var(--teal); }
.nav-btn[aria-current="true"] { background: var(--teal); color: var(--ground); font-weight: 500; }

/* -------------------------------------------------------------- views -- */

.view { flex: 1; width: 100%; }
.page {
  max-width: var(--wrap); width: 100%; margin: 0 auto;
  padding: 48px 32px 80px;
}
.page-title {
  font-family: var(--serif); font-size: clamp(42px, 6vw, 68px);
  font-weight: 400; line-height: 1; margin: 0 0 20px; text-wrap: balance;
}
.page-lede {
  font-size: 19px; line-height: 1.6; color: var(--ink-2);
  max-width: 62ch; margin: 0 0 36px; text-wrap: pretty;
}

/* ---------------------------------------------------------------- ask -- */

.ask-grid {
  max-width: var(--wrap); width: 100%; margin: 0 auto;
  padding: 32px; display: grid; grid-template-columns: 300px 1fr;
  gap: 32px; align-items: start;
}
.ask-rail { position: sticky; top: calc(var(--bar) + 34px); display: grid; gap: 20px; }

.panel-deep { background: var(--teal-deep); border-radius: 22px; padding: 28px; color: var(--on-deep); }
.panel-deep-title { font-family: var(--serif); font-size: 26px; line-height: 1.2; margin: 0 0 10px; }
.panel-deep-body  { font-size: 15px; line-height: 1.6; color: var(--teal-mid); margin: 0; }

.prompt-list { display: grid; gap: 10px; }
.prompt-list button {
  text-align: left; font-family: var(--sans); font-size: 15px; line-height: 1.45;
  color: var(--ink-2); background: var(--card);
  border: 1px solid var(--rule); border-radius: 14px;
  padding: 13px 16px; cursor: pointer;
  transition: border-color .15s, color .15s;
}
.prompt-list button:hover { border-color: var(--teal); color: var(--teal-deep); }

.clear-btn {
  justify-self: start; font-family: var(--mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4);
  background: none; border: none; padding: 4px 0; cursor: pointer;
}
.clear-btn:hover { color: var(--alarm); }

.chat {
  background: var(--card); border: 1px solid var(--rule); border-radius: 26px;
  min-height: calc(100vh - 200px); display: flex; flex-direction: column;
}
.chat-empty {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center;
  padding: 56px 40px;
}
.dio-portrait { width: 260px; max-width: 60vw; animation: dioFloat 6s ease-in-out infinite; }
.chat-empty h1 {
  font-family: var(--serif); font-size: clamp(36px, 5vw, 52px); font-weight: 400;
  line-height: 1.05; margin: 20px 0 14px; max-width: 16ch;
}
.chat-empty p {
  font-size: 18px; line-height: 1.55; color: var(--ink-3);
  max-width: 44ch; margin: 0; text-wrap: pretty;
}

.chat-log { flex: 1; padding: 32px 36px; display: flex; flex-direction: column; gap: 20px; }
.msg { animation: dioRise .28s ease both; }
.msg.user { align-self: flex-end; max-width: 70%; }
.msg.dio  { align-self: flex-start; max-width: 82%; }
.bubble { font-size: 17px; white-space: pre-wrap; }
.msg.user .bubble {
  background: var(--teal); color: var(--ground);
  padding: 14px 20px; border-radius: 20px 20px 6px 20px; line-height: 1.55;
}
.msg.dio .bubble {
  background: var(--sunk); color: var(--ink);
  padding: 16px 22px; border-radius: 20px 20px 20px 6px; line-height: 1.65;
}
.cites { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.cite {
  font-family: var(--mono); font-size: 12px; color: var(--teal-deep);
  background: var(--chip); padding: 6px 12px; border-radius: 999px; text-decoration: none;
}
.cite:hover { background: var(--teal-deep); color: var(--ground); }

.thinking { display: flex; align-items: center; gap: 12px; color: var(--ink-4); font-size: 15px; }
.thinking .badge {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--teal-pale) url('/assets/dr-dio-primary.png') no-repeat 50% 8%;
  background-size: 210%; flex-shrink: 0;
}
.thinking span { animation: dioPulse 1.4s ease-in-out infinite; }

.chat-composer { padding: 20px 28px 28px; border-top: 1px solid var(--rule-soft); }
.chat-composer form {
  display: flex; align-items: center; gap: 12px;
  background: var(--ground); border: 1px solid var(--rule);
  border-radius: 999px; padding: 10px 10px 10px 22px;
}
.chat-composer input {
  flex: 1; border: none; background: none; outline: none;
  font-family: var(--sans); font-size: 17px; color: var(--ink);
}
.chat-composer button {
  width: 46px; height: 46px; border: none; border-radius: 50%;
  background: var(--gold); color: var(--ink);
  font-size: 20px; cursor: pointer; flex-shrink: 0;
  transition: background .15s, color .15s;
}
.chat-composer button:hover:not(:disabled) { background: var(--teal); color: var(--ground); }
.chat-composer button:disabled { opacity: .5; cursor: default; }

/* ------------------------------------------------------------- herbal -- */

.pill-search {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--rule);
  border-radius: 999px; padding: 14px 24px; max-width: 560px; margin-bottom: 24px;
}
.pill-search span { color: var(--ink-5); font-size: 18px; }
.pill-search input {
  flex: 1; border: none; background: none; outline: none;
  font-family: var(--sans); font-size: 17px; color: var(--ink);
}
.pill-search input::-webkit-search-cancel-button { display: none; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.chip {
  font-family: var(--sans); font-size: 14px;
  padding: 8px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--rule); background: var(--card); color: var(--ink-2);
  transition: background .15s, border-color .15s, color .15s;
}
.chip:hover { border-color: var(--teal); }
.chip[aria-pressed="true"] { background: var(--teal); border-color: var(--teal); color: var(--ground); }

.entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.entry {
  background: var(--card); border: 1px solid var(--rule); border-radius: 20px;
  padding: 24px; display: flex; flex-direction: column; gap: 12px;
  transition: border-color .15s;
}
.entry:hover { border-color: var(--teal); }
.entry-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.entry-name { font-family: var(--serif); font-size: 27px; line-height: 1.1; }
.entry-book {
  font-family: var(--mono); font-size: 11px; color: var(--teal-deep);
  background: var(--chip); padding: 5px 10px; border-radius: 999px; white-space: nowrap;
}
.entry-sci { font-family: var(--mono); font-size: 12px; color: var(--ink-3); }
.entry-note { font-size: 16px; line-height: 1.55; color: var(--ink-2); }
.entry-ask {
  margin-top: auto; align-self: flex-start;
  font-family: var(--sans); font-size: 14px; color: var(--teal-deep);
  background: none; border: none; padding: 4px 0; cursor: pointer;
  border-bottom: 1px solid #C9BFA8;
}
.entry-ask:hover { border-color: var(--teal); }

.no-results { text-align: center; padding: 60px 20px; color: var(--ink-3); font-size: 18px; }

.cta-deep {
  margin-top: 48px; background: var(--teal-deep); border-radius: 22px;
  padding: 36px 40px; color: var(--on-deep);
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.cta-deep-title { font-family: var(--serif); font-size: 30px; line-height: 1.2; margin: 0 0 8px; }
.cta-deep-body  { font-size: 16px; line-height: 1.6; color: var(--teal-mid); max-width: 52ch; margin: 0; }
.btn-gold {
  flex-shrink: 0; background: var(--gold); color: var(--ink);
  font-size: 16px; font-weight: 500; padding: 16px 28px;
  border-radius: 999px; text-decoration: none; white-space: nowrap;
}
.btn-gold:hover { background: var(--ground); color: var(--ink); }

/* ------------------------------------------------------------- plates -- */

.plate-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.plate {
  background: var(--card); border: 1px solid var(--rule);
  border-radius: 20px; padding: 16px; display: block;
  text-decoration: none; color: inherit; transition: border-color .15s;
}
.plate:hover { border-color: var(--teal); }
.plate-img {
  aspect-ratio: 3/4; border-radius: 12px; overflow: hidden;
  background: repeating-linear-gradient(135deg, #EDE6D6 0 10px, #E5DCC8 10px 20px);
  /* Not a flex container: `align-items: center` leaves the child's
     `height: 100%` with nothing to resolve against, so the plate collapsed to
     zero height and the hatched placeholder showed through a loaded image. */
  display: block;
}
.plate-img img { width: 100%; height: 100%; object-fit: contain; display: block; }
.plate-name { font-family: var(--serif); font-size: 22px; margin-top: 14px; line-height: 1.15; }
.plate-credit { font-family: var(--mono); font-size: 11px; color: var(--ink-3); margin-top: 4px; }

.vienna {
  margin-top: 56px; background: var(--card); border: 1px solid var(--rule);
  border-radius: 26px; padding: 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.vienna-title { font-family: var(--serif); font-size: 42px; font-weight: 400; line-height: 1.05; margin: 0 0 16px; }
.vienna-body  { font-size: 17px; line-height: 1.65; color: var(--ink-2); margin: 0 0 24px; text-wrap: pretty; }
.folio-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.folio {
  aspect-ratio: 3/4; border-radius: 10px; overflow: hidden; display: block;
  background: repeating-linear-gradient(135deg, #E8E0CC 0 10px, #DFD5BE 10px 20px);
}
.folio img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* -------------------------------------------------------------- about -- */

.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: start; }
.about-prose {
  font-size: 19px; line-height: 1.7; color: var(--ink-1);
  display: grid; gap: 22px; max-width: 62ch;
}
.about-prose p { margin: 0; text-wrap: pretty; }
.about-cards { margin-top: 44px; display: grid; gap: 20px; max-width: 62ch; }
.card-soft { background: var(--card); border: 1px solid var(--rule); border-radius: 20px; padding: 28px; }
.card-soft-title { font-family: var(--serif); font-size: 28px; margin: 0 0 10px; }
.card-soft p { margin: 0; font-size: 17px; line-height: 1.65; color: var(--ink-2); text-wrap: pretty; }

.about-rail { position: sticky; top: calc(var(--bar) + 34px); display: grid; gap: 20px; }
.portrait-frame {
  background: radial-gradient(circle at 50% 40%, var(--teal-pale) 0%, #EDE6D6 72%);
  border-radius: 26px; padding: 24px;
  display: flex; align-items: center; justify-content: center;
}
.portrait-frame img { width: 100%; max-width: 320px; }
.source-list { display: grid; gap: 16px; font-size: 15px; line-height: 1.6; }

/* ------------------------------------------------------------- footer -- */

.footer { border-top: 1px solid var(--rule); background: var(--sunk); }
.footer-inner {
  max-width: var(--wrap); margin: 0 auto; padding: 28px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.footer p { margin: 0; font-size: 13px; line-height: 1.6; color: var(--ink-3); max-width: 72ch; }
.footer .mono-credit { font-size: 11px; letter-spacing: .12em; color: var(--ink-5); text-transform: uppercase; }

/* --------------------------------------------------------- responsive -- */

@media (max-width: 1000px) {
  .ask-grid { grid-template-columns: 1fr; }
  .ask-rail { position: static; }
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-rail { position: static; }
  .entry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plate-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .vienna { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .topbar-inner { padding: 12px 18px; flex-wrap: wrap; row-gap: 10px; }
  .nav { order: 3; flex-basis: 100%; overflow-x: auto; }
  .page, .ask-grid { padding: 28px 18px 64px; }
  .entry-grid { grid-template-columns: minmax(0, 1fr); }
  .plate-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-deep { flex-direction: column; align-items: flex-start; padding: 28px; }
  .chat { min-height: 60vh; }
  .msg.user, .msg.dio { max-width: 92%; }
  .footer-inner { padding: 24px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* --------------------------------------------------- trial + mini pages -- */

.trial-note {
  margin: 10px 4px 0; text-align: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-4);
}

.gate-card {
  align-self: center; max-width: 460px; width: 100%;
  background: var(--teal-deep); color: var(--on-deep);
  border-radius: 22px; padding: 28px; text-align: center;
  animation: dioRise .3s ease both;
}
.gate-title { font-family: var(--serif); font-size: 26px; margin: 0 0 8px; }
.gate-body  { font-size: 15px; line-height: 1.6; color: var(--teal-mid); margin: 0 0 20px; }
.gate-card .btn-gold { display: inline-block; }

.mini-body { display: grid; place-items: center; min-height: 100vh; }
.mini {
  width: min(420px, calc(100vw - 32px));
  background: var(--card); border: 1px solid var(--rule);
  border-radius: 26px; padding: 34px 32px;
}
.mini-badge {
  display: block; width: 52px; height: 52px; border-radius: 50%;
  background: var(--teal-pale) url('/assets/dr-dio-primary.png') no-repeat 50% 8%;
  background-size: 210%; margin-bottom: 18px;
}
.mini h1 { font-family: var(--serif); font-size: 30px; font-weight: 400; margin: 0 0 8px; line-height: 1.1; }
.mini p { font-size: 15px; line-height: 1.6; color: var(--ink-3); margin: 0 0 20px; }
.mini code { font-family: var(--mono); font-size: .9em; }
.mini-error {
  padding: 10px 13px; border-radius: 12px;
  background: #F6E3DF; color: var(--alarm); font-size: 13.5px; margin-bottom: 16px;
}
.mini-form { display: grid; gap: 7px; }
.mini-form label {
  font-family: var(--mono); font-size: 10px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--ink-3);
}
.mini-form input {
  height: 42px; padding: 0 14px; border-radius: 999px;
  border: 1px solid var(--rule); background: var(--ground);
  font-family: var(--sans); font-size: 15px; color: var(--ink); outline: none;
}
.mini-form input:focus { border-color: var(--teal); }
.mini-form button {
  margin-top: 6px; height: 44px; border: none; border-radius: 999px;
  background: var(--gold); color: var(--ink);
  font-family: var(--sans); font-size: 15px; font-weight: 500; cursor: pointer;
}
.mini-form button:hover { background: var(--teal); color: var(--ground); }