/* Mehmorize — warm, paper-like design system. Mobile-first, fluid type. */

:root {
  /* warm light theme */
  --bg:        #FBF6EE;
  --bg-elev:   #FFFCF6;
  --ink:       #2B2620;
  --ink-soft:  #4A413A;
  --muted:     #7A6E62;
  --line:      #E6DCCB;
  --accent:    #B8704A;
  --accent-ink:#FFFFFF;
  --accent-soft:#F1D9C5;
  --good:      #4F7D4A;
  --warn:      #C28A3C;
  --bad:       #B05151;

  --radius:    12px;
  --radius-lg: 18px;
  --shadow:    0 1px 2px rgba(80,52,28,.06), 0 6px 18px rgba(80,52,28,.06);
  --tap:       44px;

  --font-ui:   ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  --font-serif:"Iowan Old Style", "Charter", "Source Serif Pro", Georgia, "Times New Roman", "Nanum Myeongjo", serif;

  --scripture-size: clamp(1.05rem, 1rem + 0.6vw, 1.35rem);
  --scripture-line: 1.7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #1F1A15;
    --bg-elev:   #2A231C;
    --ink:       #F4ECDC;
    --ink-soft:  #D8CDB8;
    --muted:     #9F907E;
    --line:      #3A2F25;
    --accent:    #D78A60;
    --accent-ink:#1F1A15;
    --accent-soft:#4A3527;
    --shadow:    0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  }
}

:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"]  { color-scheme: dark; }
:root[data-theme="dark"] {
  --bg:#1F1A15;--bg-elev:#2A231C;--ink:#F4ECDC;--ink-soft:#D8CDB8;--muted:#9F907E;
  --line:#3A2F25;--accent:#D78A60;--accent-ink:#1F1A15;--accent-soft:#4A3527;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  min-height: 100dvh;
  padding-bottom: env(safe-area-inset-bottom);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(184,112,74,0.04), transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(184,112,74,0.03), transparent 50%);
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* App bar */
.app-bar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px;
  padding: 10px clamp(12px, 3vw, 24px);
  padding-top: calc(10px + env(safe-area-inset-top));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-family: var(--font-serif);
  color: var(--ink); font-size: 1.15rem; letter-spacing: 0.01em;
}
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--accent); font-size: 1.3rem; }
.tabs { margin-left: auto; display: flex; gap: 6px; }
.tabs a {
  padding: 8px 12px; border-radius: 999px; color: var(--ink-soft);
  min-height: var(--tap); display: inline-flex; align-items: center;
  position: relative;
}
.tabs a.active { background: var(--accent-soft); color: var(--accent); }
.tabs a:hover { text-decoration: none; background: color-mix(in srgb, var(--accent-soft) 60%, transparent); }
.badge {
  display: inline-block; margin-left: 6px; min-width: 18px; padding: 1px 6px;
  border-radius: 999px; background: var(--accent); color: var(--accent-ink);
  font-size: 0.75rem; line-height: 1.4; text-align: center;
}

.lang-toggle {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg-elev); overflow: hidden; margin-left: 6px;
}
.lang-toggle .lang-btn {
  background: transparent; border: 0; padding: 6px 10px; min-height: 36px;
  font-size: 0.85rem; font-weight: 600; color: var(--muted); letter-spacing: 0.02em;
}
.lang-toggle .lang-btn.active {
  background: var(--accent); color: var(--accent-ink);
}
@media (max-width: 480px) {
  .tabs a { padding: 8px 10px; font-size: 0.92rem; }
  .lang-toggle .lang-btn { padding: 6px 8px; }
}

/* View container */
.view {
  max-width: 1080px; margin: 0 auto;
  padding: clamp(16px, 3vw, 28px);
  outline: none;
}

h1, h2, h3 { font-family: var(--font-serif); color: var(--ink); line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem); }
h2 { font-size: clamp(1.2rem, 1rem + 0.9vw, 1.5rem); }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }

/* Cards */
.card {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: clamp(14px, 2.5vw, 20px);
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 12px; }

.stack { display: flex; flex-direction: column; gap: 12px; }
.row   { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.muted { color: var(--muted); }
.right { margin-left: auto; }
.spacer{ flex: 1; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: var(--tap); padding: 10px 16px;
  background: var(--bg-elev); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius);
  font-weight: 500; transition: transform .04s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent); color: var(--accent-ink); border-color: var(--accent);
}
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, #000); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--accent-soft); }
.btn-danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, var(--line)); background: transparent; }
.btn-sm { min-height: 36px; padding: 6px 12px; font-size: 0.92rem; }

/* Form controls */
.input, select.input {
  width: 100%; padding: 10px 12px; min-height: var(--tap);
  background: var(--bg-elev); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.9rem; color: var(--ink-soft); font-weight: 500; }

input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; background: transparent; padding: 8px 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px; border-radius: 3px;
  background: linear-gradient(to right, var(--accent) var(--p, 0%), var(--line) var(--p, 0%));
}
input[type="range"]::-moz-range-track {
  height: 6px; border-radius: 3px; background: var(--line);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--bg-elev);
  box-shadow: 0 1px 3px rgba(0,0,0,.2); margin-top: -8px;
}
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--bg-elev);
}

/* Radio group as chip set */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips label {
  position: relative; cursor: pointer;
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg-elev); color: var(--ink-soft); font-size: 0.9rem;
  min-height: 36px; display: inline-flex; align-items: center;
}
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips label:has(input:checked) {
  background: var(--accent-soft); color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
}

/* Home: deck list */
.deck-list { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .deck-list { grid-template-columns: 1fr 1fr; } }
.deck {
  display: flex; flex-direction: column; gap: 8px;
  padding: 16px; border-radius: var(--radius-lg);
  border: 1px solid var(--line); background: var(--bg-elev);
  text-decoration: none; color: inherit;
  transition: transform .08s ease, border-color .15s ease;
}
.deck:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.deck-ref { font-family: var(--font-serif); font-size: 1.15rem; color: var(--ink); }
.deck-meta { color: var(--muted); font-size: 0.85rem; display: flex; gap: 10px; flex-wrap: wrap; }
.deck-preview { color: var(--ink-soft); font-size: 0.95rem; line-height: 1.5; }
.empty {
  text-align: center; padding: 40px 16px; color: var(--muted);
  border: 1px dashed var(--line); border-radius: var(--radius-lg);
}

/* Picker */
.picker { display: grid; gap: 16px; }
@media (min-width: 860px) {
  .picker { grid-template-columns: 1fr 1fr 1fr; align-items: start; }
}
.picker-col h2 { margin-bottom: 8px; }
.picker-list {
  max-height: 56vh; overflow: auto;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg-elev);
}
.picker-list button {
  display: flex; width: 100%; justify-content: space-between; gap: 10px;
  padding: 10px 14px; min-height: var(--tap);
  background: transparent; border: 0; border-bottom: 1px solid var(--line);
  color: var(--ink); text-align: left;
}
.picker-list button:last-child { border-bottom: 0; }
.picker-list button:hover { background: var(--accent-soft); }
.picker-list button.selected { background: var(--accent-soft); color: var(--accent); }
.picker-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: 6px; padding: 8px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-elev);
  max-height: 56vh; overflow: auto;
}
.picker-grid button {
  min-height: 44px; padding: 6px; border-radius: 8px;
  border: 1px solid transparent; background: transparent; color: var(--ink);
}
.picker-grid button:hover { background: var(--accent-soft); }
.picker-grid button.selected { background: var(--accent); color: var(--accent-ink); }
.picker-grid button.in-range { background: var(--accent-soft); color: var(--accent); }

/* Study screen */
.study { padding-bottom: 220px; }
.study-head { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; margin-bottom: 12px; }
.study-ref { font-family: var(--font-serif); font-size: 1.4rem; color: var(--ink); }
.study-progress { color: var(--muted); font-size: 0.9rem; }

.bilingual { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 880px) { .bilingual.cols-2 { grid-template-columns: 1fr 1fr; } }

.passage { display: flex; flex-direction: column; gap: 10px; }
.passage-lang-label {
  font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); font-weight: 600;
}
.chunk {
  font-family: var(--font-serif);
  font-size: var(--scripture-size); line-height: var(--scripture-line);
  padding: 12px 14px; border-radius: var(--radius);
  background: var(--bg-elev); border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  white-space: pre-wrap; word-break: break-word;
  transition: border-color .15s ease, background .15s ease;
}
.chunk:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.chunk.peek { background: var(--accent-soft); border-color: var(--accent); color: var(--ink); }
.chunk .vnum {
  display: inline-block; font-family: var(--font-ui); font-size: 0.72em;
  color: var(--accent); font-weight: 600; vertical-align: super;
  margin-right: 4px;
}
.chunk .hidden-ch { color: var(--muted); opacity: 0.5; }

/* Bottom control bar (sticky) */
.controls {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 15;
  padding: 12px clamp(12px, 3vw, 24px);
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-top: 1px solid var(--line);
}
.controls-inner { max-width: 1080px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.drip-row { display: flex; align-items: center; gap: 10px; }
.drip-row .drip-val {
  font-variant-numeric: tabular-nums; color: var(--muted); min-width: 3ch; text-align: right;
  font-size: 0.9rem;
}
.rating-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.rating-row .btn { padding: 8px 10px; min-height: 40px; flex-direction: column; gap: 2px; font-size: 0.85rem; }
.rating-row .btn small { color: var(--muted); font-size: 0.72rem; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--ink); color: var(--bg); padding: 10px 16px;
  border-radius: 999px; box-shadow: var(--shadow); z-index: 30;
  font-size: 0.9rem;
}

/* Settings */
.settings-section { margin-bottom: 24px; }
.settings-section h2 { margin-bottom: 10px; }
.kv { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 600px) { .kv { grid-template-columns: 1fr 1fr; } }

/* Print sheet — plain, paper-like; same look in preview and print. */
.print-sheet {
  background: #fff;
  color: #000;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  font-size: 11pt;
  line-height: 1.4;
  padding: 18mm 14mm;
  border: 1px solid #ddd;
  border-radius: 4px;
  max-width: 210mm;
  margin: 0 auto;
}
.print-sheet h1, .print-sheet h2 { font-family: inherit; font-weight: 700; color: #000; }
.print-sheet .print-header h1 { font-size: 14pt; margin: 0 0 2pt; letter-spacing: 0.02em; }
.print-sheet .print-sub { font-size: 9pt; color: #555; margin-bottom: 10pt; }
.print-sheet .print-name-row {
  display: flex; gap: 18pt; font-size: 9pt; color: #333;
  border-top: 1px dashed #bbb; padding-top: 6pt; margin-bottom: 14pt;
  flex-wrap: wrap;
}
.print-sheet .print-body.two-col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18pt;
}
.print-sheet .print-passage h2 {
  font-size: 11pt; margin: 0 0 8pt; padding-bottom: 4pt;
  border-bottom: 1px solid #000;
}
.print-sheet .print-chunk {
  page-break-inside: avoid;
  margin: 0 0 6pt;
}
.print-sheet .print-text { display: inline; }
.print-sheet .vnum {
  display: inline-block; min-width: 1.6em; font-size: 8pt;
  color: #444; vertical-align: super; margin-right: 2pt;
}
.print-sheet .hidden-ch { color: #888; }
.print-sheet .write-lines {
  display: block; margin: 4pt 0 10pt;
}
.print-sheet .write-lines span {
  display: block; border-bottom: 1px solid #000;
  height: 1.6em; margin-top: 0.2em;
}
.print-sheet .print-footer {
  font-size: 8.5pt; color: #444; margin-top: 18pt;
  border-top: 1px solid #000; padding-top: 5pt;
}

@media print {
  @page { margin: 12mm 10mm; }
  html, body { background: white !important; color: black !important; }
  .app-bar, .controls, .toast, .no-print { display: none !important; }
  .view { padding: 0 !important; max-width: none !important; }
  #preview.card {
    background: #fff !important; border: 0 !important;
    box-shadow: none !important; padding: 0 !important; margin: 0 !important;
  }
  .print-sheet {
    border: 0; border-radius: 0; padding: 0; max-width: none; margin: 0;
  }
  .print-sheet .print-chunk { break-inside: avoid; page-break-inside: avoid; }
}