/* ════════════════════════════════════════════════════════════
   Care Cloud Mobile-First Layer
   - 載入順序：必須在 styles.css 之後（覆蓋既有桌面優先樣式）
   - 哲學：base = mobile，@media (min-width: ...) 加大時 progressive enhance
   - 不重寫 styles.css，僅針對共通元素做 mobile-first 補強
   ════════════════════════════════════════════════════════════ */

/* ── 0. PWA / iOS 安全區 ───────────────────────────────────── */
:root {
  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left:   env(safe-area-inset-left, 0px);
  --safe-right:  env(safe-area-inset-right, 0px);
  --tap:         44px;             /* WCAG 觸控最小尺寸 */
  --gutter-mob:  16px;
  --gutter-tab:  24px;
  --gutter-pc:   40px;
  --bp-tab:      768px;
  --bp-pc:       1024px;
  --bp-wide:     1280px;
}

/* PWA standalone 模式時，預留 status bar 高度 */
@media (display-mode: standalone) {
  body { padding-top: var(--safe-top); }
}

/* ── 1. Base: mobile-first 預設（無 media query）──────────── */
html { -webkit-text-size-adjust: 100%; }

img, video, picture, svg {
  max-width: 100%;
  height: auto;
}

/* 觸控裝置的 hover 解除 */
@media (hover: none) {
  *:hover { transform: none !important; }
}

/* 手機 base 字級用 clamp，避免在 320px 螢幕被擠爆 */
body {
  font-size: clamp(14px, 4vw, 17px);
}

/* 容器：手機完全鋪滿，桌面才置中 + max-width */
.container, .wrap, .max-w, .layout-container {
  width: 100%;
  padding-left: max(var(--gutter-mob), var(--safe-left));
  padding-right: max(var(--gutter-mob), var(--safe-right));
  margin-left: auto;
  margin-right: auto;
}

/* 按鈕、連結、互動元素：保證可觸控 */
button, .btn, .pill, .chip, [role="button"], a.tap, .icon-btn {
  min-height: var(--tap);
  min-width: var(--tap);
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(124, 58, 237, 0.12);
}

/* 表單元素：避免 iOS 輸入時自動縮放（≥16px 即可） */
input, select, textarea {
  font-size: max(16px, 1rem);
}

/* 表格在手機可橫向滾動 */
.table-wrap, table.responsive {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* 橫向 tab/分類列在手機可滑動 */
.quick-categories,
.category-pill-row,
.tab-row,
.tabs,
[role="tablist"] {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.quick-categories::-webkit-scrollbar,
.category-pill-row::-webkit-scrollbar,
.tab-row::-webkit-scrollbar,
.tabs::-webkit-scrollbar,
[role="tablist"]::-webkit-scrollbar { display: none; }

/* Hero / 大標題：手機用相對單位避免溢出 */
.hero h1, .hero-title, h1.lp-h1 {
  font-size: clamp(1.5rem, 6vw, 2.5rem);
  line-height: 1.25;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.hero, .hero-section, .hero-video-shell .hero-content {
  min-height: auto;
  padding-top: clamp(40px, 8vh, 80px);
  padding-bottom: clamp(32px, 6vh, 64px);
}

/* 卡片格：手機單欄 */
.card-grid, .grid-cards, .lp-cards-grid, .service-grid, .hp-svc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* 黏性側欄在手機改一般流（避免擋內容） */
.sticky-aside, .side-toc, .lp-privacy-contact-card {
  position: static;
  top: auto;
}

/* 浮動 floating 元素：在 ≤480px 預設縮小或隱藏 */
.floating-service-qr { display: none; }
.floating-line-button {
  right: 12px;
  bottom: max(12px, var(--safe-bottom));
}

/* 段落字色 + 行距優化（手機閱讀友善） */
p {
  line-height: 1.7;
  color: #4B5563;
}

/* ── 2. 平板：≥768px ──────────────────────────────────────── */
@media (min-width: 768px) {
  .container, .wrap, .max-w, .layout-container {
    padding-left: var(--gutter-tab);
    padding-right: var(--gutter-tab);
    max-width: 720px;
  }

  .card-grid, .grid-cards, .lp-cards-grid, .service-grid, .hp-svc-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  body { font-size: 1rem; }

  /* 平板可顯示浮動 QR */
  .floating-service-qr { display: grid; }

  /* 黏性側欄回歸 */
  .sticky-aside, .side-toc {
    position: sticky;
    top: 80px;
  }
}

/* ── 3. 桌面：≥1024px ─────────────────────────────────────── */
@media (min-width: 1024px) {
  .container, .wrap, .max-w, .layout-container {
    padding-left: var(--gutter-pc);
    padding-right: var(--gutter-pc);
    max-width: 1024px;
  }

  .card-grid, .grid-cards, .lp-cards-grid, .service-grid, .hp-svc-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* 桌面才支援 hover 動畫 */
  @media (hover: hover) {
    .card:hover, .service-card:hover, .product-card:hover,
    .lp-tcard:hover, .lp-story-card:hover {
      transform: translateY(-4px);
      transition: transform .2s ease;
    }
  }
}

/* ── 4. 寬螢幕：≥1280px ──────────────────────────────────── */
@media (min-width: 1280px) {
  .container, .wrap, .max-w, .layout-container {
    max-width: 1200px;
  }

  .card-grid, .grid-cards, .lp-cards-grid, .service-grid, .hp-svc-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ── 5. PWA install banner（自製安裝提示）──────────────── */
#cc-install-banner {
  position: fixed;
  bottom: max(16px, var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: none;
  align-items: center;
  gap: 12px;
  max-width: calc(100% - 32px);
  padding: 12px 16px;
  background: #5B21B6;
  color: #fff;
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .25);
  font-size: .9rem;
}
#cc-install-banner.show { display: flex; }
#cc-install-banner button {
  background: #fff;
  color: #5B21B6;
  border: 0;
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 700;
  cursor: pointer;
  min-height: 36px;
  min-width: auto;
}
#cc-install-banner .close {
  background: transparent;
  color: #fff;
  padding: 6px 8px;
  font-size: 1.2rem;
  line-height: 1;
}

/* ── 6. 動畫減量偏好 ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}