/* ============================================================================
   Easy Tibetan Copy
   Aesthetic: "paper & ink" editorial minimalism. Warm manuscript paper, deep
   ink, a single monastic-maroon accent. Generous negative space, quiet motion.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..600;1,9..144,300..500&family=Hanken+Grotesk:wght@400;500;600;700&family=Noto+Serif+Tibetan:wght@400;500;600&display=swap');

:root {
  /* paper & ink palette */
  --paper:        #f6f1e7;
  --paper-deep:   #efe7d7;
  --card:         #fffdf8;
  --ink:          #20140a;
  --ink-soft:     #4f4334;
  --ink-faint:    #8a7c66;
  --line:         #e3d8c2;
  --line-strong:  #d4c6aa;

  /* monastic accent */
  --maroon:       #8a2b22;
  --maroon-deep:  #6e1f18;
  --saffron:      #c8642a;
  --saffron-soft: #e8a35a;
  --gold:         #b6892f;

  --ok:           #3f7a52;
  --warn:         #b06a1f;

  --radius:       18px;
  --radius-sm:    12px;
  --radius-lg:    26px;
  --shadow-sm:    0 1px 2px rgba(44,28,12,.05), 0 2px 8px rgba(44,28,12,.04);
  --shadow-md:    0 4px 14px rgba(44,28,12,.07), 0 18px 50px rgba(44,28,12,.07);
  --shadow-lg:    0 10px 30px rgba(44,28,12,.10), 0 40px 90px rgba(44,28,12,.10);

  --ease:         cubic-bezier(.22,.61,.36,1);
  --ease-out:     cubic-bezier(.16,1,.3,1);

  --maxw:         720px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: 'Hanken Grotesk', ui-sans-serif, system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* atmosphere: soft warm glow + fine grain overlay */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(1100px 620px at 50% -8%, rgba(200,100,42,.10), transparent 60%),
    radial-gradient(900px 600px at 92% 8%, rgba(138,43,34,.06), transparent 55%),
    radial-gradient(800px 700px at 4% 100%, rgba(182,137,47,.06), transparent 55%);
  pointer-events: none; z-index: 0;
}
body::after {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: .035; pointer-events: none; z-index: 0; mix-blend-mode: multiply;
}

.wrap { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 0 24px 120px; }

/* ----------------------------------------------------------- header */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 34px 0 8px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  background: none; border: 0; padding: 0; margin: 0;
  font: inherit; color: inherit; text-align: left; cursor: pointer;
  -webkit-appearance: none;
}
.brand:hover .mark { transform: rotate(-3deg) scale(1.05); }
.brand:hover b { color: var(--maroon); }
.brand:focus-visible { outline: 2px solid var(--saffron); outline-offset: 4px; border-radius: 8px; }
.mark {
  width: 42px; height: 42px; flex: none; color: var(--maroon);
  position: relative; top: 1px;
  border-radius: 9px; transition: transform .3s var(--ease);
  filter: drop-shadow(0 2px 4px rgba(138,43,34,.18));
}
.brand b {
  font-family: 'Fraunces', serif; font-weight: 500; font-size: 1.28rem;
  letter-spacing: -.01em; font-optical-sizing: auto;
}
.brand span { display:block; font-size: .82rem; color: var(--ink-faint); margin-top: 2px; }
.byline { font-size: .76rem; color: var(--ink-faint); text-align: right; line-height:1.4; }
.byline a { color: var(--maroon); text-decoration: none; border-bottom: 1px solid rgba(138,43,34,.25); }

/* ----------------------------------------------------------- hero */
.hero { text-align: center; padding: 58px 0 40px; }
.eyebrow {
  display: inline-block; font-size: .74rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--saffron); font-weight: 600; margin-bottom: 20px;
  padding: 6px 14px; border: 1px solid var(--line-strong); border-radius: 999px;
  background: rgba(255,253,248,.6);
}
.hero h1 {
  font-family: 'Fraunces', serif; font-optical-sizing: auto;
  font-weight: 400; font-size: clamp(2.05rem, 6vw, 4rem); line-height: 1.04;
  letter-spacing: -.02em; color: var(--ink); text-wrap: balance;
}
.hero h1 em { font-style: italic; color: var(--maroon); }
.hero p {
  max-width: 30em; margin: 22px auto 0; color: var(--ink-soft);
  font-size: 1.075rem; text-wrap: balance;
}

/* ----------------------------------------------------------- stage / cards */
.stage { margin-top: 8px; }
.panel {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  padding: 30px; position: relative;
}
.panel + .panel { margin-top: 22px; }

/* dropzone */
.drop {
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius-lg);
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    var(--card);
  padding: 64px 32px; text-align: center; cursor: pointer;
  transition: border-color .35s var(--ease), background .35s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
  position: relative; overflow: hidden;
}
.drop:hover { border-color: var(--saffron); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.drop.drag {
  border-color: var(--maroon); border-style: solid;
  background: linear-gradient(180deg, #fffdf8, #fbf3e8);
  transform: scale(1.005);
}
.drop-ico {
  width: 64px; height: 64px; margin: 0 auto 22px; color: var(--maroon);
  display: grid; place-items: center; border-radius: 50%;
  background: radial-gradient(circle at 50% 35%, #fbeada, #f4e2c9);
  box-shadow: inset 0 1px 0 #fff, var(--shadow-sm);
  transition: transform .5s var(--ease-out);
}
.drop:hover .drop-ico { transform: translateY(-4px) rotate(-3deg); }
.drop h3 { font-family:'Fraunces',serif; font-weight: 450; font-size: 1.4rem; letter-spacing: -.01em; }
.drop p { color: var(--ink-faint); margin-top: 8px; font-size: .95rem; }
.drop .pill {
  display:inline-block; margin-top: 18px; font-size:.8rem; color: var(--ink-soft);
  background: var(--paper-deep); border:1px solid var(--line); border-radius:999px; padding: 5px 13px;
}

/* document summary */
.docrow { display:flex; align-items:center; gap: 16px; }
.doc-ico {
  width: 46px; height: 56px; flex:none; border-radius: 8px;
  background: linear-gradient(160deg, #fbeede, #f1dcc0); border:1px solid var(--line-strong);
  position: relative; box-shadow: var(--shadow-sm);
  display:grid; place-items:center; color: var(--maroon); font-size:.62rem; font-weight:700; letter-spacing:.05em;
}
.doc-ico::after{ content:''; position:absolute; top:0; right:0; border-width:0 14px 14px 0; border-style:solid; border-color:#e7d3b3 var(--card) ; border-radius:0 8px 0 0;}
.doc-meta { flex: 1; min-width: 0; }
.doc-meta h3 { font-size: 1.05rem; font-weight: 600; white-space: nowrap; overflow:hidden; text-overflow: ellipsis; }
.doc-meta .sub { color: var(--ink-faint); font-size: .88rem; margin-top: 2px; }
.linkbtn { background:none; border:none; color: var(--ink-faint); cursor:pointer; font: inherit; font-size:.85rem; padding:6px 10px; border-radius: 8px; transition: color .2s, background .2s; }
.linkbtn:hover { color: var(--maroon); background: var(--paper-deep); }

.divline { height:1px; background: var(--line); margin: 24px 0; }

/* fonts list */
.section-label { font-size:.74rem; text-transform:uppercase; letter-spacing:.16em; color: var(--ink-faint); font-weight:600; margin-bottom: 12px; }
.chips { display:flex; flex-wrap:wrap; gap: 8px; }
/* collapsible "fonts in this document" reveal — keeps the actions above the fold */
.fonts-reveal { margin-top: 22px; }
.fonts-reveal summary {
  cursor: pointer; list-style: none; display: inline-flex; align-items: center; gap: 8px;
  font-size:.74rem; text-transform:uppercase; letter-spacing:.16em; color: var(--ink-faint); font-weight:600;
}
.fonts-reveal summary::-webkit-details-marker { display: none; }
.fonts-reveal summary::before { content: '▸'; font-size:.8em; transition: transform .2s var(--ease); }
.fonts-reveal[open] summary::before { transform: rotate(90deg); }
.fonts-reveal summary:hover { color: var(--maroon); }
.fonts-reveal .chips { margin-top: 14px; }
.chip {
  font-size:.82rem; padding: 6px 12px; border-radius: 999px;
  background: var(--paper-deep); border:1px solid var(--line); color: var(--ink-soft);
}

/* ----------------------------------------------------------- option controls */
.opts { display:grid; gap: 22px; }
.choice { display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tile {
  text-align:left; cursor:pointer; border:1.5px solid var(--line); border-radius: var(--radius);
  background: var(--card); padding: 18px 18px; transition: all .25s var(--ease);
  display:flex; gap: 13px; align-items:flex-start;
}
.tile:hover { border-color: var(--line-strong); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.tile.on { border-color: var(--maroon); background: linear-gradient(180deg,#fffdf8,#fcf4ea); box-shadow: 0 0 0 3px rgba(138,43,34,.10); }
.tile .ti { width:34px;height:34px;flex:none;border-radius:10px;display:grid;place-items:center;background:var(--paper-deep);color:var(--maroon); transition: background .25s, color .25s;}
.tile.on .ti { background: var(--maroon); color:#fff; }
.tile h4 { font-size:.98rem; font-weight:600; }
.tile p { font-size:.82rem; color: var(--ink-faint); margin-top:2px; }

/* segmented control */
.seg { display:inline-flex; background: var(--paper-deep); border:1px solid var(--line); border-radius: 12px; padding: 4px; gap:4px; }
.seg button {
  border:none; background:none; font: inherit; font-size:.88rem; font-weight:500; color: var(--ink-soft);
  padding: 8px 18px; border-radius: 9px; cursor:pointer; transition: all .22s var(--ease);
}
.seg button.on { background: var(--card); color: var(--maroon); box-shadow: var(--shadow-sm); font-weight:600; }
.field-row { display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.field-row .lab h4 { font-size:.96rem; font-weight:600; }
.field-row .lab p { font-size:.82rem; color: var(--ink-faint); }

/* ----------------------------------------------------------- buttons */
.btn {
  font: inherit; font-weight: 600; font-size: 1rem; cursor: pointer;
  border: none; border-radius: 14px; padding: 16px 26px;
  display: inline-flex; align-items: center; justify-content:center; gap: 10px;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.btn-primary {
  color: #fff; width: 100%;
  background: linear-gradient(180deg, var(--maroon), var(--maroon-deep));
  box-shadow: 0 2px 0 #5a1812, var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 0 #5a1812, var(--shadow-lg); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 1px 0 #5a1812, var(--shadow-sm); }
.btn-primary:disabled { opacity:.5; cursor: default; transform:none; box-shadow:var(--shadow-sm); }
.btn-ghost { background: var(--paper-deep); color: var(--ink); border:1px solid var(--line); }
.btn-ghost:hover { background:#fff; box-shadow: var(--shadow-sm); }
/* accent: the "switch mode" action (Extract text / Fix the PDF) — saffron tint */
.btn-accent { background: linear-gradient(180deg,#f8ecd6,#f0dcbb); color: var(--maroon-deep); border:1px solid var(--saffron-soft); }
.btn-accent:hover { background: linear-gradient(180deg,#fcf3e4,#f4e3c7); box-shadow: var(--shadow-sm); }
/* quiet: the low-emphasis "start over" action (Do another) — outlined, transparent */
.btn-quiet { background: transparent; color: var(--ink-faint); border:1px solid var(--line); }
.btn-quiet:hover { color: var(--maroon); background: var(--paper-deep); border-color: var(--line-strong); }
.btn-actions { display:flex; gap:12px; margin-top: 26px; }
.btn-actions .btn-primary { width:auto; flex:1; }

/* ----------------------------------------------------------- processing */
.processing { text-align:center; padding: 50px 20px; }
.mandala { width: 86px; height: 86px; margin: 0 auto 28px; position: relative; }
.mandala .ring { position:absolute; inset:0; border-radius:50%; border: 2px solid transparent; }
.mandala .r1 { border-top-color: var(--maroon); border-right-color: var(--maroon); animation: spin 1.1s linear infinite; }
.mandala .r2 { inset: 14px; border-bottom-color: var(--saffron); border-left-color: var(--saffron); animation: spin 1.5s linear infinite reverse; }
.mandala .r3 { inset: 28px; border-top-color: var(--gold); animation: spin 0.9s linear infinite; }
.mandala .dot { position:absolute; inset:38px; border-radius:50%; background: radial-gradient(circle,#fbeada,#e9c79b); }
@keyframes spin { to { transform: rotate(360deg); } }
.processing h3 { font-family:'Fraunces',serif; font-weight:450; font-size:1.5rem; }
.processing p { color: var(--ink-faint); margin-top: 8px; }
.qpos {
  display:inline-flex; align-items:baseline; gap:8px; margin-top: 18px;
  background: var(--paper-deep); border:1px solid var(--line); border-radius: 14px; padding: 12px 20px;
}
.qpos b { font-family:'Fraunces',serif; font-size: 1.8rem; color: var(--maroon); font-weight:500; }
.qpos span { color: var(--ink-soft); font-size:.9rem; }

/* ----------------------------------------------------------- result */
.result-head { display:flex; align-items:center; gap:14px; margin-bottom: 6px; }
.badge-ok { width:42px;height:42px;flex:none;border-radius:50%; display:grid;place-items:center; color:#fff;
  background: linear-gradient(180deg,#4a8b60,#3f7a52); box-shadow: var(--shadow-sm); animation: pop .5s var(--ease-out) both; }
.badge-warn { width:42px;height:42px;flex:none;border-radius:50%; display:grid;place-items:center; color:#fff;
  background: linear-gradient(180deg,#e8a35a,#c8642a); box-shadow: var(--shadow-sm); animation: pop .5s var(--ease-out) both; }
@keyframes pop { 0%{transform:scale(.4);opacity:0} 60%{transform:scale(1.08)} 100%{transform:scale(1);opacity:1} }
.result-head h3 { font-family:'Fraunces',serif; font-weight:450; font-size:1.5rem; }
.result-head p { color: var(--ink-faint); font-size:.9rem; }

.stats { display:grid; grid-template-columns: repeat(auto-fit, minmax(110px,1fr)); gap: 12px; margin: 22px 0; }
.stat { background: var(--paper-deep); border:1px solid var(--line); border-radius: var(--radius); padding: 16px; text-align:center; }
.stat b { display:block; font-family:'Fraunces',serif; font-size: 1.9rem; font-weight:500; color: var(--maroon); line-height:1; }
.stat span { display:block; font-size:.76rem; color: var(--ink-faint); margin-top: 8px; text-transform:uppercase; letter-spacing:.08em; }

/* extracted text */
.texttools { display:flex; align-items:center; justify-content:space-between; margin-bottom: 12px; gap:12px; }
.texttools .fmt { font-size:.78rem; color: var(--ink-faint); text-transform:uppercase; letter-spacing:.1em; }
@font-face {
  font-family: 'Jomolhari';
  src: url('fonts/Jomolhari.ttf') format('truetype');
  font-display: swap;
}
.textbox {
  background: #fffefb; border:1px solid var(--line); border-radius: var(--radius);
  padding: 22px; max-height: 440px; overflow:auto;
  font-family: 'Jomolhari','Noto Serif Tibetan', ui-serif, Georgia, serif;
  font-size: 1.02rem; line-height: 1.9; color: var(--ink);
  white-space: pre-wrap; word-break: break-word; box-shadow: inset 0 1px 3px rgba(44,28,12,.03);
}
.textbox::-webkit-scrollbar{ width:10px; } .textbox::-webkit-scrollbar-thumb{ background: var(--line-strong); border-radius:99px; border:3px solid #fffefb;}
/* formatting-preserving preview: blocks (paragraphs) -> lines -> styled runs */
.textbox.rich { white-space: normal; }
.textbox.rich .para { margin: 0 0 .8em; }
.textbox.rich .para:last-child { margin-bottom: 0; }
.textbox.rich .ln { display:block; }
.textbox.rich span { font-family: inherit; }

/* error */
.err { text-align:center; padding: 40px 20px; }
.err .x { width:46px;height:46px;margin:0 auto 18px;border-radius:50%; display:grid;place-items:center; color:#fff; background: linear-gradient(180deg,#b5483c,#8a2b22); }
.err h3 { font-family:'Fraunces',serif; font-weight:450; font-size:1.4rem; }
.err p { color: var(--ink-soft); margin-top: 8px; max-width: 32em; margin-inline:auto; }

/* footer */
footer { text-align:center; margin-top: 60px; color: var(--ink-faint); font-size:.82rem; }
footer a { color: var(--maroon); text-decoration:none; }
footer .feedback { max-width: 40em; margin: 0 auto 26px; line-height:1.5; }
footer .feedback a { border-bottom: 1px solid rgba(138,43,34,.25); }
.credit { display:flex; flex-direction:column; align-items:center; gap:14px; padding-top:22px; border-top:1px solid var(--line, rgba(0,0,0,.08)); }
.credit-logos { display:flex; align-items:center; gap:24px; }
.credit-logos a { display:inline-flex; align-items:center; }
.credit-logos img { height:30px; width:auto; opacity:.78; transition: opacity .2s var(--ease); }
.credit-logos a:hover img { opacity:1; }
.credit-logos img.kf { height:44px; }   /* KF is a tall vertical mark — a touch larger to balance */
.credit p { max-width: 46em; margin:0 auto; line-height:1.55; text-wrap-style: balance; }
.oss { margin-top: 22px; }
.oss a { display:inline-flex; align-items:center; gap:7px; color: var(--ink-faint); transition: color .2s var(--ease); }
.oss a:hover { color: var(--maroon); }
.oss svg { width:15px; height:15px; }

/* ----------------------------------------------------------- motion */
.reveal { opacity: 0; transform: translateY(14px); animation: reveal .7s var(--ease-out) forwards; }
@keyframes reveal { to { opacity:1; transform: none; } }
.d1{animation-delay:.05s}.d2{animation-delay:.13s}.d3{animation-delay:.22s}.d4{animation-delay:.32s}.d5{animation-delay:.42s}

.swap-enter { animation: swapIn .5s var(--ease-out) both; }
@keyframes swapIn { from { opacity:0; transform: translateY(18px) scale(.99); } to { opacity:1; transform:none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* responsive */
@media (max-width: 560px) {
  .wrap { padding: 0 16px 80px; }
  .panel { padding: 22px; }
  .choice { grid-template-columns: 1fr; }
  .hero { padding: 36px 0 28px; }
  .hero h1 br { display: none; }
  header { flex-wrap: wrap; gap: 8px; }
  .byline { width: 100%; text-align: left; }
  .credit-logos img { height: 26px; }
  .credit-logos img.kf { height: 38px; }
}

[hidden] { display: none !important; }
.toast {
  position: fixed; left:50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fbf3e8; padding: 12px 20px; border-radius: 12px; font-size:.9rem;
  box-shadow: var(--shadow-lg); opacity:0; transition: all .35s var(--ease); z-index: 50; pointer-events:none;
}
.toast.show { opacity:1; transform: translateX(-50%) translateY(0); }