/* Hanzi Grid styles. One column on a phone, a wider card on a PC. */

/* The two fonts the sheet uses, so the previews look exactly like the PDF. */
@font-face {
  font-family: 'HG Kai';
  src: url('fonts/ukai-cn.ttf') format('truetype');
  font-display: block;
}
@font-face {
  font-family: 'HG Print';
  src: url('fonts/noto-sans-sc.ttf') format('truetype');
  font-display: block;
}

:root {
  --bg: #f6f3ee;
  --card: #ffffff;
  --text: #1f1d1a;
  --muted: #6b665e;
  --line: #ddd6cb;
  --accent: #8c2a1c;
  --accent-text: #ffffff;
  --warn-bg: #fff1dc;
  --warn: #9a5a00;
  --error-bg: #fde4e1;
  --error: #b3261e;
  --ok: #2e6b30;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #181614;
    --card: #23201d;
    --text: #eee9e1;
    --muted: #a59e94;
    --line: #3a352f;
    --accent: #d4664f;
    --accent-text: #1a0d0a;
    --warn-bg: #3a2a10;
    --warn: #f0b45a;
    --error-bg: #3d1714;
    --error: #ff8a80;
    --ok: #8fd18f;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.top {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--bg);
  padding: 12px 16px 0;
  border-bottom: 1px solid var(--line);
}
.top h1 { font-size: 1.25rem; margin: 0 0 8px; }
.top h1 span { font-family: 'HG Kai', serif; font-weight: normal; color: var(--accent); }

.tabs { display: flex; gap: 4px; }
.tabs button {
  flex: 1;
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 8px;
  font: inherit;
  font-weight: 600;
}
.tabs button[aria-selected="true"] { background: var(--card); color: var(--text); }

main { max-width: 820px; margin: 0 auto; padding: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 1.1rem; }

label { display: block; font-weight: 600; margin-bottom: 4px; }

textarea, input[type="text"], input[type="number"] {
  width: 100%;
  font: inherit;
  color: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}
input[type="number"] { width: 5.5em; }

details { margin: 10px 0; }
summary { cursor: pointer; color: var(--accent); font-weight: 600; min-height: 44px; display: flex; align-items: center; }

.buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

button {
  font: inherit;
  min-height: 44px;              /* big touch targets */
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.quiet { background: transparent; }
button:disabled { opacity: 0.5; cursor: default; }

.message { min-height: 1.4em; margin: 10px 0 0; }
.message.ok { color: var(--ok); }
.message.problem { color: var(--error); }

.prompt-box { margin-top: 12px; }

.hint { color: var(--muted); }

.list-head { margin-bottom: 8px; }

.notice { background: var(--warn-bg); color: var(--warn); border-radius: 8px; padding: 8px 10px; margin: 8px 0; }

.word-list { list-style: none; margin: 0; padding: 0; }
/* Phone: everything stacked. PC (wider than 640 px): previews on the left. */
.word {
  border-top: 1px solid var(--line);
  padding: 12px 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.word .preview { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; }
.word .kai { font-family: 'HG Kai', serif; font-size: 48px; line-height: 1.1; }
.word .print { font-family: 'HG Print', sans-serif; font-size: 34px; line-height: 1.1; color: var(--muted); }
.word .info { color: var(--muted); }
.word .info b { color: var(--text); font-weight: 600; }

.flags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.flags li { border-radius: 6px; padding: 2px 8px; font-size: 0.9rem; }
.flags .warn { background: var(--warn-bg); color: var(--warn); }
.flags .error { background: var(--error-bg); color: var(--error); font-weight: 600; }

.rows { display: flex; align-items: center; gap: 6px; }
.rows span { color: var(--muted); font-size: 0.9rem; }
.rows button { min-width: 44px; padding: 6px 8px; }
.rows button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.rows input { width: 4em; padding: 6px; min-height: 44px; }

.actions { display: flex; flex-wrap: wrap; gap: 6px; }
.actions button { padding: 6px 10px; }

.edit-form { grid-column: 1 / -1; display: grid; gap: 8px; }
.edit-form .buttons { margin-top: 0; }

.add-form { display: flex; gap: 8px; margin-top: 12px; }
.add-form input { flex: 1; }

fieldset { border: 1px solid var(--line); border-radius: 10px; margin: 12px 0; padding: 8px 12px; }
legend { font-weight: 600; padding: 0 4px; }
.choice { display: flex; gap: 10px; align-items: center; font-weight: normal; min-height: 44px; }
.choice input { width: 22px; height: 22px; }

.setting { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.setting label { margin: 0; }

.foot { color: var(--muted); font-size: 0.85rem; text-align: center; padding: 8px 16px 24px; }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (min-width: 640px) {
  .word { grid-template-columns: 10em 1fr; column-gap: 16px; }
  .word .preview { grid-row: span 4; flex-direction: column; gap: 4px; }
}