/* =========================================================
   彰化優惠搜尋網 — 全站共用樣式
   設計系統：以 :root 變數管理配色、間距、圓角、陰影
   ========================================================= */

:root {
  /* 主色系 — foodpanda 亮桃紅品牌色 */
  --color-primary: #d70f64;       /* 主色：foodpanda 桃紅 */
  --color-primary-dark: #b00b51;
  --color-primary-soft: #ffe7f1;
  --color-accent: #00b8a9;        /* 輔色：清新薄荷青（優惠標籤） */
  --color-accent-dark: #009b8e;

  /* 中性色 */
  --color-text: #2b2230;
  --color-text-soft: #6e6873;
  --color-bg: #fff5f8;
  --color-surface: #ffffff;
  --color-border: #f4e2ea;
  --color-muted: #fdecf3;

  /* 狀態 */
  --color-warn: #ffb020;

  /* 排版 */
  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --fs-h1: clamp(2rem, 5vw, 3.2rem);
  --fs-h2: clamp(1.5rem, 3.5vw, 2.2rem);
  --fs-h3: clamp(1.15rem, 2.2vw, 1.4rem);
  --fs-body: clamp(1rem, 1.4vw, 1.08rem);
  --fs-small: 0.9rem;

  /* 版面 */
  --maxw: 1180px;
  --gutter: clamp(1.1rem, 4vw, 2.5rem);
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(120, 15, 60, 0.07);
  --shadow-md: 0 10px 30px rgba(120, 15, 60, 0.12);
  --shadow-lg: 0 18px 50px rgba(120, 15, 60, 0.18);
  --transition: 0.22s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

/* ---------- 共用容器：避免撞牆 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section-tight { padding-block: clamp(2rem, 4vw, 3rem); }

/* ---------- 標題群 ---------- */
.section-head { text-align: center; max-width: 640px; margin-inline: auto; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head h2 { font-size: var(--fs-h2); }
.section-head p { color: var(--color-text-soft); margin: 0; }
.eyebrow {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: .35em 1em;
  border-radius: var(--radius-pill);
  margin-bottom: .9rem;
}

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  padding: .7em 1.5em;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: var(--color-accent-dark); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-ghost { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { font-size: 1.08rem; padding: .85em 1.9em; }
.btn-block { width: 100%; }

/* ---------- 頁首 / 導覽 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; font-size: 1.25rem; color: var(--color-text); }
.brand .brand-mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  background: var(--color-primary); color: #fff;
  border-radius: 12px; font-size: 1.2rem;
}
.brand b { color: var(--color-primary); }
.nav-links { display: flex; align-items: center; gap: clamp(.6rem, 1.6vw, 1.6rem); }
.nav-links a { font-weight: 600; color: var(--color-text-soft); padding: .4em 0; position: relative; transition: color var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--color-primary); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--color-primary); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: .6rem; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 44px; height: 44px; font-size: 1.6rem; color: var(--color-text);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(140,8,66,.80), rgba(215,15,100,.42)),
    var(--hero-img, linear-gradient(120deg, var(--color-primary), var(--color-accent)));
  background-size: cover;
  background-position: center;
}
.hero-inner { padding-block: clamp(3.5rem, 9vw, 6.5rem); max-width: 720px; }
.hero h1 { font-size: var(--fs-h1); margin-bottom: .4em; text-shadow: 0 2px 16px rgba(0,0,0,.25); }
.hero p { font-size: clamp(1.05rem, 1.8vw, 1.25rem); color: rgba(255,255,255,.92); margin-bottom: 1.6rem; }

/* 搜尋列 */
.search-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  background: var(--color-surface);
  padding: .6rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 640px;
}
.search-bar .field { flex: 1 1 180px; display: flex; align-items: center; gap: .5rem; padding-inline: .8rem; }
.search-bar select, .search-bar input {
  width: 100%; border: none; background: transparent; font-family: inherit; font-size: 1rem; color: var(--color-text);
  padding: .7em 0;
}
.search-bar select:focus, .search-bar input:focus { outline: none; }
.search-bar .field + .field { border-left: 1px solid var(--color-border); }
.search-bar .btn { flex: 0 0 auto; }

.hero-stats { display: flex; flex-wrap: wrap; gap: clamp(1.2rem, 4vw, 2.6rem); margin-top: 1.8rem; }
.hero-stats .stat b { display: block; font-size: 1.6rem; }
.hero-stats .stat span { font-size: var(--fs-small); color: rgba(255,255,255,.85); }

/* ---------- 分類網格 ---------- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: clamp(.8rem, 2vw, 1.3rem);
}
.cat-card {
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.4rem 1rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.cat-card .ico { font-size: 2.1rem; }
.cat-card .name { font-weight: 700; }
.cat-card .count { font-size: var(--fs-small); color: var(--color-text-soft); }

/* ---------- 優惠卡片 ---------- */
.deal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: clamp(1rem, 2.5vw, 1.6rem);
}
.deal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.deal-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.deal-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--color-muted); }
.deal-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.deal-card:hover .deal-media img { transform: scale(1.06); }
.deal-badge {
  position: absolute; top: .8rem; left: .8rem;
  background: var(--color-primary); color: #fff;
  font-weight: 800; font-size: .85rem;
  padding: .35em .9em; border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}
.deal-body { padding: 1.1rem 1.2rem 1.3rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.deal-tag { align-self: flex-start; font-size: var(--fs-small); font-weight: 700; color: var(--color-accent-dark); background: rgba(0,184,169,.12); padding: .25em .8em; border-radius: var(--radius-pill); }
.deal-card h3 { font-size: var(--fs-h3); margin: 0; }
.deal-meta { display: flex; align-items: center; gap: .4rem; color: var(--color-text-soft); font-size: var(--fs-small); }
.deal-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: .6rem; padding-top: .6rem; }
.deal-price { font-weight: 800; color: var(--color-primary); font-size: 1.15rem; }
.deal-price s { color: var(--color-text-soft); font-weight: 500; font-size: .85rem; margin-left: .3rem; }

/* ---------- 工具列 / 篩選 ---------- */
.toolbar {
  display: flex; flex-wrap: wrap; gap: .9rem; align-items: center; justify-content: space-between;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 1rem 1.2rem; box-shadow: var(--shadow-sm); margin-bottom: 1.6rem;
}
.toolbar .grow { flex: 1 1 240px; }
.input, .select {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--color-text);
  padding: .7em 1em; border: 1px solid var(--color-border); border-radius: var(--radius-pill);
  background: var(--color-bg);
}
.input:focus, .select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }

.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip {
  font-size: var(--fs-small); font-weight: 600; cursor: pointer;
  padding: .45em 1.05em; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text-soft);
  transition: all var(--transition);
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.chip.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.result-count { color: var(--color-text-soft); font-size: var(--fs-small); margin-bottom: 1rem; }
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--color-text-soft); }
.empty-state .ico { font-size: 3rem; margin-bottom: .5rem; }

/* ---------- 步驟 / 說明 ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: clamp(1rem, 2.5vw, 1.8rem); }
.step {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 1.8rem 1.5rem; text-align: center; position: relative;
}
.step .num {
  display: grid; place-items: center; width: 50px; height: 50px; margin: 0 auto 1rem;
  background: var(--color-primary-soft); color: var(--color-primary);
  font-weight: 800; font-size: 1.3rem; border-radius: 50%;
}
.step h3 { font-size: var(--fs-h3); }
.step p { color: var(--color-text-soft); margin: 0; }

/* ---------- 表單 ---------- */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: clamp(1.5rem, 4vw, 2.6rem); box-shadow: var(--shadow-sm);
}
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; }
.form-row { display: flex; flex-direction: column; gap: .4rem; }
.form-row.full { grid-column: 1 / -1; }
.form-row label { font-weight: 600; font-size: var(--fs-small); }
.form-row label .req { color: var(--color-primary); }
.form-row .input, .form-row .select, .form-row textarea {
  border-radius: var(--radius); background: var(--color-bg);
}
.form-row textarea { width: 100%; min-height: 120px; resize: vertical; font-family: inherit; font-size: 1rem; padding: .7em 1em; border: 1px solid var(--color-border); }
.form-row textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.form-hint { font-size: var(--fs-small); color: var(--color-text-soft); }
.form-note { background: var(--color-primary-soft); border-radius: var(--radius); padding: 1rem 1.2rem; font-size: var(--fs-small); color: var(--color-text); }

/* ---------- 兩欄 / 內容 ---------- */
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.feature-list { display: grid; gap: 1rem; }
.feature-list li { display: flex; gap: .9rem; align-items: flex-start; }
.feature-list .fi { flex: 0 0 auto; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--color-primary-soft); color: var(--color-primary); font-size: 1.3rem; }
.feature-list b { display: block; }
.feature-list span { color: var(--color-text-soft); font-size: var(--fs-small); }

.media-frame { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- CTA 區塊 ---------- */
.cta {
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; border-radius: var(--radius-lg); text-align: center;
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
}
.cta h2 { font-size: var(--fs-h2); margin-bottom: .4em; }
.cta p { color: rgba(255,255,255,.9); margin-bottom: 1.6rem; }
.cta .btn-ghost { background: #fff; }

/* ---------- 區塊背景變化 ---------- */
.bg-soft { background: var(--color-muted); }
.bg-surface { background: var(--color-surface); }

/* ---------- 頁尾 ---------- */
.site-footer { background: #2a1622; color: #e6d6df; padding-block: clamp(2.5rem, 5vw, 3.5rem) 1.5rem; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(auto-fit, minmax(140px, 1fr)); gap: clamp(1.5rem, 4vw, 3rem); }
.footer-grid h4 { color: #fff; font-size: 1rem; margin-bottom: .9rem; }
.footer-grid .brand { color: #fff; margin-bottom: .8rem; }
.footer-grid p { color: #b3a89f; font-size: var(--fs-small); }
.footer-grid a { color: #c9bfb7; font-size: var(--fs-small); display: inline-block; padding: .25em 0; transition: color var(--transition); }
.footer-grid a:hover { color: var(--color-primary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 2rem; padding-top: 1.2rem; text-align: center; font-size: var(--fs-small); color: #9c918a; }

/* ---------- 頁面標頭橫幅 ---------- */
.page-banner { background: linear-gradient(120deg, var(--color-primary-soft), var(--color-bg)); border-bottom: 1px solid var(--color-border); }
.page-banner .container { padding-block: clamp(2.2rem, 5vw, 3.4rem); }
.page-banner h1 { font-size: var(--fs-h2); margin-bottom: .3em; }
.page-banner p { color: var(--color-text-soft); margin: 0; max-width: 640px; }
.breadcrumb { font-size: var(--fs-small); color: var(--color-text-soft); margin-bottom: .6rem; }
.breadcrumb a:hover { color: var(--color-primary); }

/* 讓 footer 貼底 */
body { display: flex; flex-direction: column; min-height: 100vh; }
main { flex: 1; }

/* ---------- 響應式 ---------- */
@media (max-width: 760px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
    padding: .5rem var(--gutter) 1rem;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: .8em 0; border-bottom: 1px solid var(--color-border); }
  .nav-links a.active::after { display: none; }
  .nav-cta .btn { padding: .55em 1em; font-size: .92rem; }
  .search-bar { flex-direction: column; }
  .search-bar .field + .field { border-left: none; border-top: 1px solid var(--color-border); }
  .search-bar .btn { width: 100%; }
}