/* ============================================================
   免費工具頁樣式（/tool/tool.css）
   目前只服務 /tool/seating-chart。共用的版面、按鈕、頁尾一律吃
   shared/base.css 與 blog/blog.css，這裡只放工具介面自己的東西。

   ⚠️ iOS 鐵則：任何 input／textarea／select 字級必須 ≥16px，
      否則 iOS 會自動放大整頁、把版面推歪。
   ============================================================ */

/* 工具介面用系統無襯線（名單、數字要好讀）；文章區維持全站襯線 */
.tc-app {
  --tc-sans: system-ui, -apple-system, "Segoe UI", "Noto Sans TC", "PingFang TC", sans-serif;
  margin-block: 2rem 3rem;
  display: grid;
  gap: 1.25rem;
}

.tc-h1 {
  font-size: clamp(1.9rem, 5.5vw, 2.8rem);
  line-height: 1.25;
  margin-block: .75rem 1rem;
}

.tc-h1 + .bl-meta { margin-bottom: .9rem; }

.tc-lead {
  font-size: var(--text-body);
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

/* TL;DR：AI 引擎與趕時間的人都直接抽這一段 */
.tc-tldr {
  display: grid;
  gap: .5rem;
  margin-bottom: .5rem;
  padding-left: 1.1rem;
}

.tc-tldr li {
  list-style: disc;
  font-size: var(--text-body);
  color: var(--ink-soft);
}

.tc-tldr strong { color: var(--ink); }

.tc-tldr code {
  font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans TC", sans-serif;
  background: rgba(34, 39, 31, .07);
  border-radius: .3rem;
  padding: .05em .35em;
}

/* ---------- 面板 ---------- */

.tc-panel {
  background: var(--paper-raise);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 3.5vw, 1.75rem);
}

.tc-step {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: var(--text-h3);
  margin-bottom: .5rem;
}

.tc-num {
  flex: none;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--tc-sans);
  font-size: 1rem;
  font-weight: 600;
  display: grid;
  place-items: center;
}

.tc-sub { font-size: var(--text-h3); margin-block: 1.25rem .5rem; }

.tc-hint,
.tc-note {
  font-family: var(--tc-sans);
  font-size: .875rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

.tc-note-block { display: block; margin-top: .6rem; }

.tc-hint code {
  font-family: var(--tc-sans);
  background: rgba(34, 39, 31, .07);
  border-radius: .3rem;
  padding: .05em .35em;
}

.tc-label {
  display: block;
  font-family: var(--tc-sans);
  font-size: .875rem;
  font-weight: 600;
  margin-block: .75rem .35rem;
}

/* ---------- 表單（字級一律 ≥16px） ---------- */

.tc-textarea,
.tc-input {
  width: 100%;
  font-family: var(--tc-sans);
  font-size: 1rem;          /* 16px — iOS 不放大 */
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: .75rem;
  padding: .7rem .85rem;
}

.tc-textarea { resize: vertical; min-height: 12rem; }

.tc-textarea:focus-visible,
.tc-input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.tc-fields {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  align-items: start;
}

.tc-field-check { grid-column: 1 / -1; }

.tc-field .tc-note { display: block; margin-top: .3rem; }

.tc-check {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--tc-sans);
  font-size: 1rem;
  font-weight: 600;
  margin-top: .75rem;
}

.tc-check input { width: 1.1rem; height: 1.1rem; accent-color: var(--accent); }

.tc-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-top: .75rem;
}

.tc-row-btns { display: flex; flex-wrap: wrap; gap: .5rem; }

.tc-count {
  font-family: var(--tc-sans);
  font-size: .875rem;
  color: var(--ink-soft);
}

.tc-mini {
  font-family: var(--tc-sans);
  font-size: .875rem;
  padding: .45rem .9rem;
}

.tc-go { margin-top: 1.25rem; }

.tc-error {
  font-family: var(--tc-sans);
  font-size: .9rem;
  color: var(--warn);
  margin-top: .75rem;
}

/* ---------- 結果 ---------- */

.tc-stats {
  font-family: var(--tc-sans);
  font-size: 1rem;
  color: var(--ink-soft);
  margin-bottom: .5rem;
}

.tc-stats strong { color: var(--ink); }

.tc-tables {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  margin-top: 1rem;
}

.tc-table {
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: 1rem;
  padding: .9rem 1rem 1rem;
}

.tc-table-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .5rem;
}

.tc-table-name {
  font-family: var(--tc-sans);
  font-size: 1.0625rem;
  font-weight: 700;
}

.tc-table-seats {
  font-family: var(--tc-sans);
  font-size: .8125rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

.tc-table-over .tc-table-seats { color: var(--warn); font-weight: 600; }

.tc-zone {
  display: inline-block;
  font-family: var(--tc-sans);
  font-size: .6875rem;
  letter-spacing: .04em;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  padding: .1rem .5rem;
  color: var(--ink-soft);
  margin-left: .4rem;
  vertical-align: .1em;
}

.tc-cards { display: flex; flex-wrap: wrap; gap: .4rem; }

.tc-card {
  font-family: var(--tc-sans);
  font-size: .9375rem;
  background: var(--paper-raise);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  padding: .35rem .75rem;
  text-align: left;
}

.tc-card:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.tc-card-num { color: var(--ink-soft); font-size: .8125rem; margin-left: .25rem; }
.tc-card-side { color: var(--ink-soft); font-size: .75rem; margin-left: .25rem; }

.tc-table-empty {
  font-family: var(--tc-sans);
  font-size: .875rem;
  color: var(--ink-soft);
}

.tc-left {
  background: rgba(138, 75, 50, .06);
  border: 1px solid rgba(138, 75, 50, .25);
  border-radius: 1rem;
  padding: .9rem 1rem 1rem;
  margin-top: 1rem;
}

.tc-left .tc-sub { margin-top: 0; }

.tc-exports {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.75rem;
}

/* ---------- 導流區 ---------- */

.tc-handoff {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}

.tc-handoff p { font-size: var(--text-body); color: var(--ink-soft); margin-bottom: 1rem; }
.tc-handoff .tc-note-block { margin-top: .75rem; }

/* ---------- 指派視窗 ---------- */

.tc-dialog {
  border: none;
  border-radius: var(--radius);
  padding: 1.25rem;
  max-width: min(24rem, 92vw);
  width: 100%;
  background: var(--paper-raise);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}

.tc-dialog::backdrop { background: rgba(20, 24, 18, .45); }
.tc-dialog .tc-sub { margin-top: 0; }

.tc-dialog-list {
  display: grid;
  gap: .4rem;
  max-height: 50vh;
  overflow-y: auto;
  margin-block: .75rem;
}

.tc-pick {
  font-family: var(--tc-sans);
  font-size: 1rem;
  text-align: left;
  border: 1px solid var(--hairline);
  border-radius: .6rem;
  padding: .55rem .75rem;
  display: flex;
  justify-content: space-between;
  gap: .5rem;
}

.tc-pick:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.tc-pick[disabled] { opacity: .45; }
.tc-pick-seats { color: var(--ink-soft); font-size: .8125rem; white-space: nowrap; }
.tc-pick-over .tc-pick-seats { color: var(--warn); }

.tc-dialog-foot { display: flex; justify-content: flex-end; }

/* ---------- 文章區 ---------- */

.tc-article { margin-block: 3rem 4rem; }
.tc-article code {
  font-family: var(--tc-sans);
  background: rgba(34, 39, 31, .07);
  border-radius: .3rem;
  padding: .05em .35em;
}

/* ---------- 列印：只印桌次總表 ---------- */

.tc-print-sheet { display: none; }

@media print {
  body > *:not(.tc-print-sheet) { display: none !important; }

  .tc-print-sheet {
    display: block !important;
    font-family: var(--tc-sans);
    color: #000;
  }

  .tc-print-title { font-size: 18pt; font-weight: 700; margin-bottom: .2rem; }
  .tc-print-sub { font-size: 10pt; color: #444; margin-bottom: 1rem; }

  .tc-print-block {
    break-inside: avoid;
    border: 1px solid #999;
    border-radius: 6px;
    padding: .5rem .7rem;
    margin-bottom: .5rem;
  }

  .tc-print-block h3 { font-size: 12pt; margin-bottom: .2rem; }
  .tc-print-block p  { font-size: 10.5pt; line-height: 1.6; }
  .tc-print-note { font-size: 9pt; color: #555; }
}