/* MS 線上工具 — 設計 tokens 與共用元件（麥思印刷品牌：teal 主色 × 印刷工房風） */
:root {
  --color-primary: #35bead;
  --color-primary-deep: #279384;
  --color-ink: #24292e;
  --color-ink-soft: #5b6570;
  --color-accent: #ff5062;
  --color-amber: #ffb236;
  --color-surface: #f6f8f8;
  --color-card: #ffffff;
  --color-line: #e2e8e8;

  --text-base: clamp(0.95rem, 0.9rem + 0.3vw, 1.05rem);
  --text-title: clamp(1.5rem, 1.1rem + 1.8vw, 2.4rem);
  --text-sub: clamp(1rem, 0.95rem + 0.4vw, 1.15rem);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 3rem;

  --radius-card: 18px;
  --radius-btn: 999px;
  --shadow-card: 0 10px 34px rgba(36, 41, 46, 0.08);
  --duration-fast: 150ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  font-size: var(--text-base);
  color: var(--color-ink);
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(53, 190, 173, 0.14), transparent 60%),
    radial-gradient(900px 420px at -10% 110%, rgba(255, 178, 54, 0.1), transparent 55%),
    var(--color-surface);
  min-height: 100vh;
}

.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-2) var(--space-3);
}
.site-header .brand {
  font-weight: 800; letter-spacing: 0.04em; text-decoration: none;
  color: var(--color-ink); font-size: 1.05rem;
}
.site-header .brand em { color: var(--color-primary); font-style: normal; }
.site-header nav a {
  color: var(--color-ink-soft); text-decoration: none; font-size: 0.9rem;
  border-bottom: 2px solid transparent; padding-bottom: 2px;
}
.site-header nav a:hover, .site-header nav a:focus-visible { color: var(--color-primary-deep); border-color: var(--color-primary); }

main.tool-shell { max-width: 960px; margin: 0 auto; padding: 0 var(--space-2) var(--space-4); }

.tool-hero { text-align: left; padding: var(--space-2) 0 var(--space-3); }
.tool-hero .kicker {
  display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em;
  color: var(--color-primary-deep); background: rgba(53, 190, 173, 0.12);
  padding: 4px 12px; border-radius: var(--radius-btn); margin-bottom: var(--space-1);
}
.tool-hero h1 { font-size: var(--text-title); margin: 0 0 var(--space-1); line-height: 1.25; }
.tool-hero p { color: var(--color-ink-soft); margin: 0; font-size: var(--text-sub); }

.panel {
  background: var(--color-card); border: 1px solid var(--color-line);
  border-radius: var(--radius-card); box-shadow: var(--shadow-card);
  padding: var(--space-3); margin-bottom: var(--space-3);
}

/* 上傳區 */
.dropzone {
  border: 2px dashed rgba(53, 190, 173, 0.55); border-radius: var(--radius-card);
  padding: var(--space-4) var(--space-2); text-align: center; cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out), border-color var(--duration-fast);
  background: rgba(53, 190, 173, 0.04);
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragover {
  background: rgba(53, 190, 173, 0.1); border-color: var(--color-primary);
}
.dropzone .dz-icon { font-size: 2rem; display: block; margin-bottom: var(--space-1); }
.dropzone strong { color: var(--color-primary-deep); }
.dropzone small { display: block; margin-top: var(--space-1); color: var(--color-ink-soft); }

/* 棋盤格（透明示意） */
.checker {
  background-image:
    linear-gradient(45deg, #dfe5e5 25%, transparent 25%, transparent 75%, #dfe5e5 75%),
    linear-gradient(45deg, #dfe5e5 25%, transparent 25%, transparent 75%, #dfe5e5 75%);
  background-size: 20px 20px; background-position: 0 0, 10px 10px; background-color: #f2f5f5;
}

/* 按鈕 */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font: inherit; font-weight: 700; cursor: pointer; text-decoration: none;
  border-radius: var(--radius-btn); padding: 10px 22px; border: 1px solid transparent;
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast), background var(--duration-fast);
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 6px 18px rgba(53, 190, 173, 0.35); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-primary-deep); }
.btn-ghost { background: transparent; color: var(--color-ink); border-color: var(--color-line); }
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--color-primary); color: var(--color-primary-deep); }
.btn-locked { background: #eef1f1; color: var(--color-ink-soft); border-color: var(--color-line); }
.btn-locked:hover { border-color: var(--color-amber); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; box-shadow: none; }

.badge-lock {
  font-size: 0.72rem; font-weight: 700; color: #8a6100;
  background: rgba(255, 178, 54, 0.22); border-radius: var(--radius-btn); padding: 2px 10px;
}
.badge-free {
  font-size: 0.72rem; font-weight: 700; color: var(--color-primary-deep);
  background: rgba(53, 190, 173, 0.14); border-radius: var(--radius-btn); padding: 2px 10px;
}

/* 進度與狀態 */
.progress-wrap { margin: var(--space-2) 0 0; display: none; }
.progress-wrap.show { display: block; }
.progress-track { height: 8px; border-radius: 8px; background: #e8eeee; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--color-primary), var(--color-primary-deep)); transition: width 200ms var(--ease-out); }
.status-line { margin-top: 8px; font-size: 0.85rem; color: var(--color-ink-soft); min-height: 1.2em; }
.status-line.error { color: var(--color-accent); font-weight: 700; }

/* 預覽 */
.preview-stage { display: none; }
.preview-stage.show { display: block; }
.preview-frame {
  border-radius: var(--radius-card); overflow: hidden; border: 1px solid var(--color-line);
  display: grid; place-items: center; min-height: 240px;
}
.preview-frame img, .preview-frame canvas { max-width: 100%; max-height: 60vh; display: block; }
.preview-toolbar { display: flex; flex-wrap: wrap; gap: var(--space-1); margin-top: var(--space-2); align-items: center; }

/* 分級下載卡 */
.tier-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-2); margin-top: var(--space-2); }
.tier-card { border: 1px solid var(--color-line); border-radius: var(--radius-card); padding: var(--space-2); }
.tier-card.hd { border-color: rgba(255, 178, 54, 0.7); background: linear-gradient(180deg, rgba(255, 178, 54, 0.06), transparent); }
.tier-card h3 { margin: 0 0 4px; font-size: 1rem; display: flex; align-items: center; gap: 8px; }
.tier-card p { margin: 0 0 var(--space-2); font-size: 0.85rem; color: var(--color-ink-soft); }

/* 貼圖格 */
.sticker-controls { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-bottom: var(--space-2); }
.count-select { display: flex; gap: 6px; flex-wrap: wrap; }
.count-select button {
  font: inherit; font-weight: 700; border-radius: 10px; border: 1px solid var(--color-line);
  background: #fff; padding: 6px 14px; cursor: pointer;
}
.count-select button.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.count-select button.locked { color: var(--color-ink-soft); }
.sticker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: var(--space-2); }
.sticker-slot {
  border-radius: 14px; border: 1px solid var(--color-line); overflow: hidden; background: #fff;
  display: flex; flex-direction: column;
}
.sticker-slot .thumb { aspect-ratio: 370 / 320; display: grid; place-items: center; position: relative; }
.sticker-slot .thumb canvas { width: 100%; height: 100%; object-fit: contain; }
.sticker-slot .thumb .slot-num {
  position: absolute; top: 6px; left: 8px; font-size: 0.7rem; font-weight: 700;
  color: var(--color-ink-soft); background: rgba(255,255,255,0.85); border-radius: 8px; padding: 1px 7px;
}
.sticker-slot.empty .thumb { color: #b9c4c4; font-size: 1.6rem; background: #fafcfc; }
.sticker-slot .meta { padding: 8px; display: flex; gap: 6px; align-items: center; border-top: 1px solid var(--color-line); }
.sticker-slot .meta input {
  flex: 1; min-width: 0; font: inherit; font-size: 0.8rem; border: 1px solid var(--color-line);
  border-radius: 8px; padding: 4px 8px;
}
.sticker-slot .meta button { border: 0; background: none; cursor: pointer; color: var(--color-ink-soft); font-size: 0.9rem; }
.sticker-slot .meta button:hover { color: var(--color-accent); }

/* 步驟說明 */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-2); }
.steps article h3 { margin: 0 0 4px; font-size: 0.98rem; }
.steps article h3 span { color: var(--color-primary); font-weight: 800; margin-right: 6px; }
.steps article p { margin: 0; color: var(--color-ink-soft); font-size: 0.88rem; }

/* 解鎖 dialog */
dialog.unlock-dialog {
  border: 0; border-radius: var(--radius-card); box-shadow: 0 24px 80px rgba(36,41,46,0.3);
  padding: var(--space-3); max-width: 420px; width: calc(100vw - 3rem);
}
dialog.unlock-dialog::backdrop { background: rgba(36, 41, 46, 0.45); }
.unlock-dialog h2 { margin: 0 0 var(--space-1); font-size: 1.2rem; }
.unlock-dialog p { color: var(--color-ink-soft); font-size: 0.9rem; }
.unlock-dialog .code-row { display: flex; gap: 8px; margin-top: var(--space-2); }
.unlock-dialog input {
  flex: 1; font: inherit; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid var(--color-line); border-radius: 10px; padding: 10px 12px;
}
.unlock-dialog input:focus-visible { outline: 2px solid var(--color-primary); border-color: transparent; }
.unlock-dialog .unlock-msg { min-height: 1.3em; font-size: 0.85rem; margin-top: 8px; }
.unlock-dialog .unlock-msg.ok { color: var(--color-primary-deep); font-weight: 700; }
.unlock-dialog .unlock-msg.bad { color: var(--color-accent); font-weight: 700; }
.unlock-dialog .close-x {
  position: absolute; top: 10px; right: 14px; border: 0; background: none;
  font-size: 1.2rem; cursor: pointer; color: var(--color-ink-soft);
}

/* 頁尾 CTA */
.site-footer { text-align: center; padding: var(--space-3) var(--space-2) var(--space-4); color: var(--color-ink-soft); font-size: 0.85rem; }
.site-footer a { color: var(--color-primary-deep); font-weight: 700; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-cta {
  max-width: 960px; margin: 0 auto var(--space-2); padding: var(--space-3);
  border-radius: var(--radius-card); color: #fff; text-align: left;
  background: linear-gradient(120deg, var(--color-primary-deep), var(--color-primary));
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-2);
}
.footer-cta h2 { margin: 0 0 4px; font-size: 1.15rem; }
.footer-cta p { margin: 0; opacity: 0.9; font-size: 0.9rem; }
.footer-cta .btn { background: #fff; color: var(--color-primary-deep); }

/* hub 卡片 */
.hub-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-3); }
.hub-card {
  display: block; text-decoration: none; color: inherit; background: var(--color-card);
  border: 1px solid var(--color-line); border-radius: var(--radius-card); overflow: hidden;
  box-shadow: var(--shadow-card); transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast);
}
.hub-card:hover { transform: translateY(-4px); box-shadow: 0 18px 44px rgba(36,41,46,0.14); }
.hub-card .art { aspect-ratio: 16 / 9; display: grid; place-items: center; }
.hub-card .body { padding: var(--space-2) var(--space-2) var(--space-3); }
.hub-card h2 { margin: 0 0 6px; font-size: 1.15rem; }
.hub-card p { margin: 0; color: var(--color-ink-soft); font-size: 0.88rem; }

@media (max-width: 640px) {
  .panel { padding: var(--space-2); }
  .site-header { padding: var(--space-2); }
}
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}