/* 察眼觀色 — 語音智慧筆記 demo 前端
   視覺基準：組員設計稿（白底、圓角卡片、藍色主按鈕、灰色次要按鈕） */

:root {
  --blue: #3478f6;
  --blue-light: #a8c6fa;
  --green: #34a853;
  --orange: #f5a623;
  --text: #1f2328;
  --text-sub: #6b7280;
  --border: #e5e7eb;
  --bg-gray: #f5f6f7;
  --radius: 12px;

  /* 螢光筆顏色（單一調整點）：
     之後功能 2 會依使用者的色彩缺失模型動態調整 — 前端呼叫 app.js 的
     setHighlightColor() 改這三個變數即可，所有筆觸/徽章/圖釘同步變色。
     demo 階段用亮黃：白底講義是經典螢光筆感，深色簡報也看得出區別。 */
  --hl-fill: rgba(255, 216, 60, .38);
  --hl-fill-hover: rgba(255, 200, 30, .6);
  --hl-accent: #f5a623;
}

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

body {
  font-family: "Segoe UI", "Microsoft JhengHei", "PingFang TC", sans-serif;
  color: var(--text);
  background: #fff;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ===== 版面 ===== */
.screen {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px;
  text-align: center;
}
.screen-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
}

.app-header h1 { font-size: 34px; letter-spacing: 2px; }
.app-header p { color: var(--text-sub); margin-top: 6px; }

.home-cards { display: flex; gap: 20px; justify-content: center; margin: 40px 0 16px; flex-wrap: wrap; }
.home-card {
  width: 300px; padding: 32px 24px;
  background: #fff; border: 1px solid var(--border); border-radius: 16px;
  cursor: pointer; transition: box-shadow .15s, transform .15s;
  font: inherit; text-align: center;
}
.home-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,.08); transform: translateY(-2px); }
.home-card-icon { font-size: 40px; margin-bottom: 12px; }
.home-card-title { font-size: 19px; font-weight: 700; }
.home-card-sub { color: var(--text-sub); font-size: 13px; margin-top: 6px; }
.home-hint { color: var(--text-sub); font-size: 13px; margin-top: 12px; }

/* ===== 按鈕 ===== */
.btn-primary {
  background: var(--blue); color: #fff; border: none;
  border-radius: 10px; padding: 14px 28px; font-size: 16px; font-weight: 600;
  cursor: pointer; font-family: inherit;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:disabled { background: #9aa3af; cursor: not-allowed; }
.btn-secondary {
  background: #fff; color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 28px; font-size: 16px;
  cursor: pointer; font-family: inherit;
}
.btn-secondary:hover { background: var(--bg-gray); }
.btn-small { padding: 8px 18px; font-size: 14px; }
.btn-full { width: 100%; }

/* ===== 對話框 ===== */
.dialog-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.35);
  display: flex; align-items: center; justify-content: center; z-index: 50;
  padding: 16px;
}
.dialog {
  background: #fff; border-radius: 16px; width: 720px; max-width: 100%;
  max-height: 92vh; overflow-y: auto; padding: 24px; text-align: left;
}
.dialog-tall { height: 80vh; display: flex; flex-direction: column; }
.dialog-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; }
.dialog-header h2 { font-size: 22px; }
.dialog-header p { color: var(--text-sub); font-size: 13px; margin-top: 6px; }
.close-btn {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
  background: #fff; color: var(--text-sub); font-size: 15px; cursor: pointer; flex-shrink: 0;
}
.close-btn:hover { background: var(--bg-gray); }
.dialog-footer { display: flex; gap: 12px; margin-top: 20px; }
.dialog-footer .btn-secondary { flex: 1; }
.dialog-footer .btn-primary { flex: 2.2; }

/* ===== 匯入語音教材：選擇頁 / 歷史匯入紀錄 ===== */
.choice-cards { display: flex; gap: 16px; flex-wrap: wrap; }
.choice-card {
  flex: 1; min-width: 220px; padding: 30px 20px;
  background: #fff; border: 1px solid var(--border); border-radius: 16px;
  cursor: pointer; font: inherit; text-align: center;
  transition: box-shadow .15s, transform .15s, border-color .15s;
}
.choice-card:hover {
  border-color: var(--blue); box-shadow: 0 6px 24px rgba(0,0,0,.08);
  transform: translateY(-2px);
}
.history-icon { background: #ffe9c7; }
.history-item {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; margin-bottom: 10px;
}
.history-item .filecard-icon { width: 44px; height: 44px; font-size: 20px; flex-shrink: 0; }
.history-item-info { flex: 1; min-width: 0; }
.history-item-name { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-item-meta { color: var(--text-sub); font-size: 12px; margin-top: 4px; }
.history-empty { text-align: center; color: var(--text-sub); padding: 28px 0 8px; }

/* 完成頁「匯入到筆記本」：綠色主按鈕，與匯出/檢視區隔 */
.btn-import-note {
  background: var(--green); color: #fff; border: none;
  border-radius: 10px; padding: 14px 28px; font-size: 16px; font-weight: 600;
  cursor: pointer; font-family: inherit; margin-top: 12px;
}
.btn-import-note:hover { filter: brightness(1.06); }
.btn-import-note:disabled { background: #9aa3af; cursor: not-allowed; }

/* ===== 拖曳區 ===== */
.dropzone {
  border: 2px dashed #cfd4da; border-radius: 12px; background: var(--bg-gray);
  padding: 36px 20px; text-align: center;
}
.dropzone.dragover { border-color: var(--blue); background: #eef4fe; }
.dropzone-icon {
  width: 64px; height: 64px; border-radius: 14px; background: #d7e4fc;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: 14px;
}
.dropzone-title { font-size: 19px; font-weight: 700; }
.dropzone-sub { color: var(--text-sub); font-size: 13px; margin: 8px 0 14px; }
.dropzone-note { color: #9aa3af; font-size: 12px; margin-top: 14px; }

/* ===== 檔案卡片 ===== */
.filecard {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--border); border-radius: 12px; background: var(--bg-gray);
  padding: 16px;
}
.filecard-icon {
  width: 52px; height: 52px; border-radius: 12px; font-size: 24px;
  display: flex; align-items: center; justify-content: center;
}
.pdf-icon { background: #fddddd; }
.audio-icon { background: #d7e4fc; }
.filecard-info { flex: 1; min-width: 0; }
.filecard-name { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.filecard-meta { color: var(--text-sub); font-size: 13px; margin-top: 4px; }
.remove-btn {
  width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border);
  background: #fff; color: var(--text-sub); cursor: pointer; flex-shrink: 0;
}

/* ===== 版本切換 chips ===== */
.chip-row { display: flex; gap: 12px; margin-top: 16px; }
.chip {
  border: 1px solid var(--border); background: #fff; border-radius: 8px;
  padding: 10px 20px; font-size: 15px; cursor: pointer; font-family: inherit;
}
.chip-active { border-color: var(--text); font-weight: 700; }

/* ===== 最近匯入 ===== */
.recent-block { margin-top: 20px; }
.recent-divider {
  display: flex; align-items: center; gap: 12px; color: #9aa3af; font-size: 12px;
  margin-bottom: 8px;
}
.recent-divider::before, .recent-divider::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}
.recent-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 4px;
  border-bottom: 1px solid #f1f2f4; cursor: default;
}
.recent-item .filecard-icon { width: 44px; height: 44px; font-size: 20px; }
.recent-item-name { font-weight: 600; font-size: 14px; }
.recent-item-meta { color: var(--text-sub); font-size: 12px; margin-top: 2px; }
.recent-chevron { margin-left: auto; color: #c3c8cf; }
.attach-hint { margin-top: 14px; font-size: 13px; color: var(--text-sub); }
.attach-hint.ok { color: var(--green); }

/* ===== 處理中 ===== */
.processing-title { font-size: 26px; margin-bottom: 36px; }
.loading-ring { position: relative; width: 220px; height: 220px; margin: 0 auto; }
.loading-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: #e8eefb; stroke-width: 16; }
.ring-fg {
  fill: none; stroke: var(--blue-light); stroke-width: 16; stroke-linecap: round;
  stroke-dasharray: 314.16; stroke-dashoffset: 314.16; transition: stroke-dashoffset .6s;
}
.ring-label {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 30px; font-weight: 700; color: var(--text-sub);
}
.processing-sub { margin-top: 28px; color: var(--text-sub); }

/* ===== 完成頁 ===== */
.done-check {
  width: 96px; height: 96px; border-radius: 50%; background: #e4f4ea; color: var(--green);
  font-size: 44px; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
}
#screen-done h2 { font-size: 28px; }
.done-sub { color: var(--text-sub); margin-top: 10px; }
.stat-row { display: flex; gap: 16px; justify-content: center; margin: 32px 0; flex-wrap: wrap; }
.stat-card {
  width: 150px; padding: 18px 12px; border: 1px solid var(--border);
  border-radius: 12px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
.stat-icon { font-size: 22px; margin-bottom: 6px; }
.stat-value { font-size: 26px; font-weight: 800; }
.stat-blue { color: var(--blue); }
.stat-green { color: var(--green); }
.stat-orange { color: var(--orange); }
.stat-label { color: var(--text-sub); font-size: 13px; margin-top: 4px; }
.done-actions { border-top: 1px solid var(--border); padding-top: 20px; max-width: 560px; margin: 0 auto; }
.done-actions-row { display: flex; gap: 12px; margin-top: 12px; }
.done-actions-row .btn-secondary { flex: 1; }

/* ===== 檢視器 ===== */
.viewer-topbar {
  display: flex; align-items: center; gap: 16px; padding: 10px 0 14px;
  border-bottom: 1px solid var(--border);
}
.viewer-title { font-size: 18px; font-weight: 700; flex: 1; }
.pager { display: flex; align-items: center; gap: 10px; }
.viewer-body { display: flex; gap: 20px; padding-top: 16px; align-items: flex-start; }
.canvas-wrap {
  position: relative; flex: 1; min-width: 0;
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
  background: var(--bg-gray);
}
#pdf-canvas { display: block; width: 100%; height: auto; }
#highlight-layer { position: absolute; inset: 0; }

/* 螢光筆：逐行貼著文字的「筆觸」，像真人劃過（無外框、無光暈） */
.hl-rect {
  position: absolute; background: var(--hl-fill);
  border-radius: 3px; cursor: pointer;
  mix-blend-mode: multiply; /* 顏色跟底下文字相乘，字透出來不會被蓋糊 */
  transition: background .15s;
}
.hl-rect:hover, .hl-rect.hl-focus {
  background: var(--hl-fill-hover);
}
.hl-badge {
  position: absolute;
  min-width: 20px; height: 20px; padding: 0 5px; border-radius: 99px;
  background: var(--hl-accent); color: #fff; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 1px 4px rgba(0,0,0,.25); pointer-events: none;
}

/* 頁面上的便利貼圖釘（收合狀態）與展開卡片 */
.note-pin {
  position: absolute; right: 8px; transform: translateY(-50%);
  width: 34px; height: 34px; border-radius: 50%;
  background: #ffd54f; border: 2px solid #f0b429;
  font-size: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,.22);
  transition: transform .15s;
}
.note-pin:hover { transform: translateY(-50%) scale(1.12); }
.note-popup {
  position: absolute; right: 50px; transform: translateY(-50%);
  width: min(320px, 60%);
  background: #fffbe6; border: 1px solid #f0d580; border-radius: 10px;
  padding: 12px 14px; font-size: 13px; line-height: 1.7;
  box-shadow: 0 6px 24px rgba(0,0,0,.18); z-index: 5;
}
.note-popup::after {
  content: ""; position: absolute; right: -8px; top: 50%; margin-top: -8px;
  border-left: 8px solid #fffbe6; border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
}
.note-popup-meta { color: #a08b3c; font-size: 11px; margin-bottom: 4px; }
.viewer-side { width: 320px; flex-shrink: 0; max-height: 80vh; overflow-y: auto; }
.side-heading { font-weight: 700; margin: 10px 0; }
.side-item {
  border: 1px solid var(--border); border-left: 4px solid var(--orange);
  border-radius: 8px; padding: 10px 12px; margin-bottom: 10px;
  font-size: 13px; cursor: pointer; background: #fff;
}
.side-item:hover { background: #fffbea; }
.side-item.active { background: #fff3c4; }
.side-item-meta { color: var(--text-sub); font-size: 12px; margin-top: 6px; }
.badge {
  display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 11px;
  background: #eef4fe; color: var(--blue); margin-right: 6px;
}
.badge-gray { background: var(--bg-gray); color: var(--text-sub); }
.note-card {
  background: #fff8dc; border: 1px solid #f0e2a0; border-radius: 8px;
  padding: 10px 12px; margin-bottom: 10px; font-size: 13px;
}

/* ===== 逐字稿 ===== */
.transcript-body {
  flex: 1; overflow-y: auto; background: var(--bg-gray);
  border-radius: 8px; padding: 16px; line-height: 1.9; font-size: 15px;
  white-space: pre-wrap;
}

@media (max-width: 860px) {
  .viewer-body { flex-direction: column; }
  .viewer-side { width: 100%; }
}