/* =========================================
   FINORA Design System (Add-on)
   - 不改動原 style.css
   - 只在使用 ds- class 時生效（所有選擇器用 :where() 維持 0 specificity）
   - 自 v2.0 起作為全站基礎 tokens 來源
========================================= */

/* ------------------------------
   1) Tokens
-------------------------------- */
:root{
  /* === Brand Colors === */
  --ds-color-primary: var(--main-color, #b4695d);
  --ds-color-primary-hover: var(--main-color-hover, #944647);
  --ds-color-primary-bg: var(--main-color-bg, #f5e8e6);
  --ds-color-primary-soft: #fdf7f5;
  --ds-color-primary-divider: #f0d9d3;

  /* === Text Colors === */
  --ds-text: #3d2c28;
  --ds-text-secondary: #4d3d39;
  --ds-muted: #7a6863;
  --ds-muted-2: #8a7873;
  --ds-muted-3: #aaa;

  /* === Semantic Colors === */
  --ds-success: #2a9d5c;
  --ds-success-bg: #e8f5e9;
  --ds-warning: #e07b2a;
  --ds-warning-bg: #fff3e0;
  --ds-info: #5c6bc0;
  --ds-info-bg: #e8f0fe;
  --ds-danger: #e05252;

  /* === Radius === */
  --ds-radius-sm: 12px;
  --ds-radius-md: 16px;
  --ds-radius-lg: var(--button-radius, 24px);
  --ds-radius-xl: 22px;
  --ds-radius-2xl: 28px;
  --ds-radius-pill: 999px;

  /* === Border === */
  --ds-border: 2px solid var(--ds-color-primary);
  --ds-border-soft: 1px solid var(--ds-color-primary-divider);

  /* === Shadow === */
  --ds-shadow-sm: 0 2px 10px rgba(0,0,0,.03);
  --ds-shadow-md: 0 4px 18px rgba(180,105,93,.08);
  --ds-shadow-md-hover: 0 8px 24px rgba(180,105,93,.18);
  --ds-shadow-lg: 0 6px 20px rgba(180,105,93,.25);
  --ds-shadow-cta: 0 4px 14px rgba(180,105,93,.3);

  /* === Spacing === */
  --ds-space-1: .25rem;
  --ds-space-2: .5rem;
  --ds-space-3: .75rem;
  --ds-space-4: 1rem;
  --ds-space-5: 1.25rem;
  --ds-space-6: 1.5rem;
  --ds-space-8: 2rem;
  --ds-space-10: 2.5rem;
  --ds-space-12: 3rem;
  --ds-space-16: 4rem;

  /* === Typography === */
  --ds-text-xs: .72rem;
  --ds-text-sm: .85rem;
  --ds-text-base: 1rem;
  --ds-text-lg: 1.1rem;
  --ds-text-xl: 1.4rem;
  --ds-text-2xl: 1.8rem;
  --ds-text-3xl: 2.1rem;

  /* === Animation === */
  --ds-transition-fast: .15s ease;
  --ds-transition-base: .25s ease;
  --ds-transition-slow: .7s ease;

  /* === Layout === */
  --ds-container: var(--container-width, 700px);
  --ds-container-narrow: 580px;
  --ds-container-wide: 760px;
}

/* ------------------------------
   2) Layout Utilities（只在 class 存在時生效）
-------------------------------- */
:where(.ds-container){
  width: 100%;
  max-width: var(--ds-container);
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}

:where(.ds-section){
  margin-top: var(--ds-space-6);
}

:where(.ds-stack){
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-4);
}

:where(.ds-center){
  text-align: center;
}

:where(.ds-grid-2){
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ds-space-4);
}
@media (min-width: 720px){
  :where(.ds-grid-2){ grid-template-columns: 1fr 1fr; }
}

/* ------------------------------
   3) Components（卡片 / 按鈕 / 表單 / Badge）
-------------------------------- */

/* Card：用在工具頁輸入區、輸出區 */
:where(.ds-card){
  background: #fff;
  border: 1px solid #f0d8d3;
  border-radius: 18px;
  padding: var(--ds-space-5);
  box-shadow: var(--ds-shadow-sm);
}

:where(.ds-card-title){
  text-align: center;
  color: var(--ds-color-primary);
  font-weight: 900;
  margin: 0 0 var(--ds-space-4);
}

:where(.ds-divider){
  height: 3px;
  width: 64px;
  background: var(--ds-color-primary);
  margin: .5rem auto var(--ds-space-5);
  border-radius: 999px;
  opacity: .85;
}

/* Buttons：不覆蓋你的 button，改用 ds-btn 類別 */
:where(.ds-btn){
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .85rem 1.2rem;
  border-radius: 999px;
  border: var(--ds-border);
  background: #fff;
  color: var(--ds-color-primary);
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  box-sizing: border-box;
  transition: background-color .15s ease, color .15s ease, transform .05s ease, box-shadow .15s ease;
  white-space: nowrap;
}

:where(.ds-btn:hover){
  background: var(--ds-color-primary-bg);
  color: var(--ds-color-primary-hover);
}
:where(.ds-btn:active){ transform: translateY(1px); }

:where(.ds-btn--primary){
  background: var(--ds-color-primary);
  color: #fff;
  border-color: var(--ds-color-primary);
  box-shadow: var(--ds-shadow-md);
}
:where(.ds-btn--primary:hover){
  background: var(--ds-color-primary-hover);
  color: #fff;
}

:where(.ds-btn--ghost){
  border: 1px solid rgba(180,105,93,.25);
  background: transparent;
  color: #777;
  font-weight: 700;
}
:where(.ds-btn--ghost:hover){
  background: rgba(180,105,93,.06);
  color: #666;
}

/* 表單：不覆蓋全域 input，只提供 ds-input 需要用才用 */
:where(.ds-input){
  width: 100%;
  padding: .75rem .9rem;
  border-radius: var(--ds-radius-sm);
  border: 1px solid #e6c9c3;
  box-sizing: border-box;
  font-size: 1rem;
  outline: none;
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
:where(.ds-input:focus){
  border-color: rgba(180,105,93,.7);
  box-shadow: 0 0 0 4px rgba(180,105,93,.12);
}

:where(.ds-label){
  display: block;
  font-weight: 800;
  margin-bottom: .35rem;
}

/* KPI：小卡（可套在 peace/emergency 結果區） */
:where(.ds-kpi){
  border: 1px solid #f3dfdb;
  border-radius: 18px;
  padding: var(--ds-space-5);
  background: #fff;
}
:where(.ds-kpi__k){
  font-size: .9rem;
  color: var(--ds-muted);
  opacity: .85;
}
:where(.ds-kpi__v){
  font-size: 2rem;
  font-weight: 950;
  color: var(--ds-color-primary);
  margin-top: .2rem;
}
:where(.ds-kpi__hint){
  font-size: .9rem;
  color: var(--ds-muted-2);
  margin-top: .35rem;
  line-height: 1.5;
}

/* Badge / Pill（燈號） */
:where(.ds-pill){
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  border-radius: 999px;
  padding: .45rem .8rem;
  font-weight: 900;
  border: 1px solid #ddd;
  background: #fff;
}
:where(.ds-pill[data-level="green"]){ background:#e9f7ee; border-color:#bfe8cc; }
:where(.ds-pill[data-level="yellow"]){ background:#fff7e6; border-color:#ffe0a3; }
:where(.ds-pill[data-level="red"]){ background:#ffecec; border-color:#ffc2c2; }

/* Actions Row */
:where(.ds-actions){
  display:flex;
  justify-content:center;
  gap: var(--ds-space-4);
  flex-wrap: wrap;
  margin-top: var(--ds-space-5);
}

/* ------------------------------
   4) Footer Component（你截圖那種底部跑版專用）
   只要 footer 加上 ds-footer 就會置中且換行正常
-------------------------------- */
:where(.ds-footer){
  text-align: center;
  margin-top: var(--ds-space-8);
  padding: var(--ds-space-4) 0;
  color: var(--ds-muted-2);
  font-size: .85rem;
}

:where(.ds-footer .ds-footer__links){
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .65rem .9rem; /* row/col gap */
  margin-top: .6rem;
}

:where(.ds-footer .ds-footer__links a){
  color: var(--ds-muted-2);
  text-decoration: none;
}
:where(.ds-footer .ds-footer__links a:hover){
  text-decoration: underline;
}

/* ============================================================
   5) V2 Components — 從 about.html 抽出來的高品質模式
============================================================ */

/* ---- Section Header（章節標題 + 副標）---- */
:where(.ds-section-header){
  text-align: center;
  margin-bottom: var(--ds-space-6);
}
:where(.ds-section-header h2){
  font-size: var(--ds-text-xl);
  font-weight: 800;
  color: var(--ds-text);
  margin: 0 0 var(--ds-space-2);
}
:where(.ds-section-header .ds-section-sub){
  font-size: .95rem;
  color: var(--ds-muted-2);
  max-width: 460px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ---- Hero Pattern（漸層 hero 區塊）---- */
:where(.ds-hero){
  text-align: center;
  padding: 3.5rem 1rem 2.5rem;
  background: linear-gradient(180deg, var(--ds-color-primary-bg) 0%, var(--ds-color-primary-soft) 60%, #ffffff 100%);
  border-radius: 0 0 var(--ds-radius-2xl) var(--ds-radius-2xl);
  margin-bottom: var(--ds-space-10);
}
:where(.ds-hero h1){
  font-size: var(--ds-text-3xl);
  font-weight: 800;
  color: var(--ds-color-primary);
  margin: 0 0 var(--ds-space-2);
  letter-spacing: .5px;
}
:where(.ds-hero p){
  font-size: 1.05rem;
  color: var(--ds-text-secondary);
  max-width: 480px;
  margin: 0 auto var(--ds-space-5);
  line-height: 1.7;
}

/* ---- Hero Pill（玻璃感 badge）---- */
:where(.ds-hero-pill){
  display: inline-flex;
  align-items: center;
  gap: var(--ds-space-2);
  padding: .4rem 1rem;
  border-radius: var(--ds-radius-pill);
  background: rgba(255, 255, 255, .7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-size: .82rem;
  color: var(--ds-color-primary);
  font-weight: 600;
  border: 1px solid rgba(180, 105, 93, .2);
}

/* ---- Pullquote（金句框）---- */
:where(.ds-pullquote){
  margin: var(--ds-space-5) 0;
  padding: var(--ds-space-4) var(--ds-space-5);
  border-left: 4px solid var(--ds-color-primary);
  background: rgba(180, 105, 93, .08);
  border-radius: 0 var(--ds-radius-sm) var(--ds-radius-sm) 0;
  font-weight: 700;
  color: var(--ds-color-primary);
  font-size: 1.02rem;
  line-height: 1.7;
}
:where(.ds-pullquote-author){
  display: block;
  margin-top: .5rem;
  font-size: .82rem;
  font-weight: 500;
  opacity: .75;
  letter-spacing: .3px;
}

/* ---- Manifesto Item（編號宣言）---- */
:where(.ds-manifesto){
  max-width: var(--ds-container-narrow);
  margin: 0 auto;
}
:where(.ds-manifesto-item){
  display: flex;
  align-items: flex-start;
  gap: var(--ds-space-5);
  padding: var(--ds-space-6) 0;
  border-bottom: var(--ds-border-soft);
}
:where(.ds-manifesto-item:last-child){ border-bottom: none; }
:where(.ds-manifesto-num){
  font-size: 2rem;
  font-weight: 800;
  color: var(--ds-color-primary);
  opacity: .35;
  line-height: 1;
  font-feature-settings: "tnum";
  flex-shrink: 0;
  min-width: 2.4rem;
}
:where(.ds-manifesto-body){ flex: 1; }
:where(.ds-manifesto-body h3){
  margin: 0 0 .4rem;
  font-size: var(--ds-text-lg);
  color: var(--ds-text);
  font-weight: 700;
}
:where(.ds-manifesto-body p){
  margin: 0;
  color: var(--ds-muted);
  font-size: .92rem;
  line-height: 1.7;
}

/* ---- Stats Strip（漸層三欄訊息條）---- */
:where(.ds-stats-strip){
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--ds-space-2);
  background: linear-gradient(135deg, var(--ds-color-primary) 0%, var(--ds-color-primary-hover) 100%);
  border-radius: var(--ds-radius-xl);
  padding: var(--ds-space-6) var(--ds-space-4);
  color: #fff;
  box-shadow: var(--ds-shadow-lg);
}
:where(.ds-stat-item){
  text-align: center;
  padding: 0 .3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
:where(.ds-stat-item + .ds-stat-item){
  border-left: 1px solid rgba(255, 255, 255, .25);
}
:where(.ds-stat-icon){
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: .4rem;
}
:where(.ds-stat-value){
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: .4rem;
  letter-spacing: .5px;
  font-feature-settings: "tnum";
}
:where(.ds-stat-label){
  font-size: .72rem;
  opacity: .92;
  line-height: 1.4;
}

/* ---- Reveal Animation（捲動進場）---- */
:where(.ds-reveal){
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--ds-transition-slow), transform var(--ds-transition-slow);
}
:where(.ds-reveal.visible){
  opacity: 1;
  transform: translateY(0);
}

/* 動畫減量需求（a11y） */
@media (prefers-reduced-motion: reduce){
  :where(.ds-reveal){ opacity: 1; transform: none; transition: none; }
}

/* ---- CTA Button（漸層強調按鈕，比 ds-btn--primary 更搶眼）---- */
:where(.ds-cta){
  display: inline-flex;
  align-items: center;
  gap: var(--ds-space-2);
  padding: .9rem 2rem;
  border-radius: var(--ds-radius-pill);
  background: var(--ds-color-primary);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--ds-shadow-cta);
  transition: all var(--ds-transition-base);
  border: none;
  cursor: pointer;
}
:where(.ds-cta:hover){
  background: var(--ds-color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(180, 105, 93, .4);
}

/* ---- Floating Back Button（左上角浮動返回）---- */
:where(.ds-top-back){
  position: fixed;
  top: 1rem;
  left: 1rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--ds-color-primary);
  font-size: 1.3rem;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .08);
  border: 1px solid rgba(180, 105, 93, .15);
  z-index: 100;
  transition: all var(--ds-transition-base);
}
:where(.ds-top-back:hover){
  background: var(--ds-color-primary);
  color: #fff;
  transform: translateX(-2px);
  box-shadow: var(--ds-shadow-cta);
}

/* ============================================================
   6) Auto-init Reveal — 自動掛 IntersectionObserver
   只要頁面上有 .ds-reveal 就會自動處理（無需自己寫 JS）
============================================================ */
/* JS 部分需要在 HTML 載入：
<script>
  (() => {
    const els = document.querySelectorAll('.ds-reveal');
    if (!els.length) return;
    const io = new IntersectionObserver((entries) => {
      entries.forEach(e => {
        if (e.isIntersecting) {
          e.target.classList.add('visible');
          io.unobserve(e.target);
        }
      });
    }, { threshold: 0.1 });
    els.forEach(el => io.observe(el));
  })();
</script>
*/