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

:root {
  --primary: #8a6d4f;
  --primary-dark: #6f5640;
  --bg: #f5f2ee;
  --card: #ffffff;
  --text: #2d2a26;
  --muted: #8d857b;
  --border: #e3ddd4;
  --danger: #c0392b;
  --success: #2e7d52;
  --warning: #b8860b;
  --sidebar-w: 220px;
  --topbar-h: 52px;
}

html, body { height: 100%; }
body {
  font-family: -apple-system, "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}

.hidden { display: none !important; }

/* ---------- 登入 ---------- */
.login-screen {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #6f5640, #a98963);
  padding: 16px;
}
.login-box {
  background: var(--card); border-radius: 12px; padding: 32px 28px;
  width: 100%; max-width: 380px; box-shadow: 0 8px 32px rgba(0,0,0,.25);
}
.login-box h1 { font-size: 22px; text-align: center; color: var(--primary-dark); }
.login-sub { text-align: center; color: var(--muted); font-size: 13px; margin: 6px 0 20px; }
.login-box label { display: block; margin-bottom: 14px; font-size: 14px; color: var(--muted); }
.login-box input {
  display: block; width: 100%; margin-top: 4px; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 16px;
}

/* ---------- 版面 ---------- */
.app { min-height: 100vh; }

.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--topbar-h);
  background: var(--card); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px; padding: 0 14px; z-index: 50;
}
.topbar-title { font-weight: 700; font-size: 17px; flex: 1; }
.topbar-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); }
.menu-toggle {
  background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text);
  display: none; padding: 4px 8px;
}

.sidebar {
  position: fixed; top: var(--topbar-h); left: 0; bottom: 0; width: var(--sidebar-w);
  background: #2f2a24; padding: 12px 0; z-index: 40; overflow-y: auto;
  transition: transform .2s ease;
}
.sidebar-brand { color: #cbb89f; font-weight: 700; padding: 10px 20px 16px; font-size: 15px; }
.sidebar a {
  display: block; color: #d8d2c8; text-decoration: none;
  padding: 12px 20px; font-size: 15px; border-left: 3px solid transparent;
}
.sidebar a:hover { background: rgba(255,255,255,.06); }
.sidebar a.active { background: rgba(255,255,255,.1); border-left-color: var(--primary); color: #fff; }
.sidebar-backdrop {
  display: none; position: fixed; inset: var(--topbar-h) 0 0 0;
  background: rgba(0,0,0,.4); z-index: 35;
}

.main {
  margin-left: var(--sidebar-w); margin-top: var(--topbar-h);
  padding: 18px; max-width: 1200px;
}

/* ---------- 元件 ---------- */
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; margin-bottom: 16px;
}
.card h2 { font-size: 16px; margin-bottom: 12px; color: var(--primary-dark); }
.card h3 { font-size: 14px; margin: 12px 0 8px; }

.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px;
}
.stat .stat-label { font-size: 12px; color: var(--muted); }
.stat .stat-value { font-size: 24px; font-weight: 700; margin-top: 4px; }
.stat .stat-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }

.btn {
  display: inline-block; padding: 9px 16px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  font-size: 14px; text-decoration: none; line-height: 1.2;
}
.btn:hover { filter: brightness(.97); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.toolbar input, .toolbar select { flex: 0 1 auto; }

input, select, textarea {
  padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px; font-family: inherit; background: #fff; color: var(--text);
  max-width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(138,109,79,.35); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid label, .form-col label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.form-grid .full { grid-column: 1 / -1; }
.form-error { color: var(--danger); font-size: 13px; margin-top: 8px; min-height: 18px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; background: #faf8f5; }
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #faf6f0; }
td.num, th.num { text-align: right; }

.badge {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px;
  background: #eee7dd; color: var(--primary-dark);
}
.badge-green { background: #ddeee3; color: var(--success); }
.badge-red { background: #f5dcd8; color: var(--danger); }
.badge-yellow { background: #f3ead0; color: var(--warning); }
.badge-gray { background: #e8e6e2; color: var(--muted); }

.muted { color: var(--muted); font-size: 13px; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.mt { margin-top: 12px; }
.mb { margin-bottom: 12px; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 100;
  display: flex; align-items: flex-start; justify-content: center;
  padding: 24px 12px; overflow-y: auto;
}
.modal {
  background: var(--card); border-radius: 12px; width: 100%; max-width: 560px;
  padding: 20px; margin: auto 0;
}
.modal h2 { font-size: 17px; margin-bottom: 16px; color: var(--primary-dark); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }
.modal-wide { max-width: 760px; }

/* ---------- Toast ---------- */
#toast-root { position: fixed; top: 60px; right: 16px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: #2f2a24; color: #fff; padding: 11px 16px; border-radius: 8px;
  font-size: 14px; box-shadow: 0 4px 16px rgba(0,0,0,.25); max-width: 320px;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }

/* ---------- 收銀 ---------- */
.pos-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; align-items: start; }
.pos-cart-item { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.pos-cart-item .desc { flex: 1; }
.pos-total { font-size: 22px; font-weight: 700; text-align: right; margin: 12px 0; }
.pay-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.pay-row label { width: 70px; font-size: 14px; color: var(--muted); }
.pay-row input { flex: 1; }

/* ---------- 進度條 ---------- */
.progress { background: #ece7df; border-radius: 999px; height: 8px; overflow: hidden; min-width: 80px; }
.progress > div { background: var(--primary); height: 100%; }

/* ---------- 手機 ---------- */
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop.show { display: block; }
  .main { margin-left: 0; padding: 12px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .pos-layout { grid-template-columns: 1fr; }
  .topbar-user span { display: none; }
  th, td { padding: 8px 8px; }
  .toolbar input[type="text"], .toolbar input[type="search"] { flex: 1 1 100%; }
}

@media (max-width: 480px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .stat .stat-value { font-size: 20px; }
  body { font-size: 14px; }
}

/* 療程照片牆 */
.photo-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px;
}
.photo-item { margin: 0; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--card); }
.photo-item img { width: 100%; height: 140px; object-fit: cover; display: block; cursor: zoom-in; }
.photo-item figcaption { padding: 6px 8px; font-size: 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }

/* 電子簽名板 */
.sign-canvas {
  width: 100%; max-width: 600px; height: 220px; border: 1px dashed var(--border);
  border-radius: 8px; background: #fff; touch-action: none; cursor: crosshair;
}

/* 禁忌症警示橫幅 */
.contra-banner { border-radius: 8px; padding: 10px 14px; margin: 10px 0; font-size: 14px; }
.contra-banner ul { margin: 6px 0 0; padding-left: 20px; }
.contra-banner li { margin: 2px 0; }
.contra-danger { background: #fbe4e4; border: 1px solid #e3b0b0; color: #9a2b2b; }
.contra-warn { background: #fdf3e2; border: 1px solid #e8cfa0; color: #8a5a16; }

/* 問診單選項（modal 內） */
.intake-opt { display: flex; align-items: center; gap: 8px; padding: 7px 4px; border-bottom: 1px solid var(--border); font-size: 14px; }
.intake-opt input { width: 18px; height: 18px; }