/* =============================================================
   KPI 填報系統 — 樣式表
   ============================================================= */

/* ── CSS 變數 ─────────────────────────────────────────────── */
:root {
  --primary:       #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success:       #16a34a;
  --success-light: #f0fdf4;
  --warning:       #d97706;
  --warning-light: #fffbeb;
  --danger:        #dc2626;
  --danger-light:  #fef2f2;
  --info-light:    #eff6ff;

  --text-1: #111827;
  --text-2: #374151;
  --text-3: #6b7280;
  --border:  #e5e7eb;
  --bg:      #f3f4f6;
  --bg-card: #ffffff;

  --radius:  8px;
  --shadow:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: 'Noto Sans TC', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── 導覽列 ──────────────────────────────────────────────── */
.navbar {
  background: var(--primary);
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.15);
}
.navbar-brand {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .01em;
}
.navbar-user {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: .875rem;
}
.nav-link { color: rgba(255,255,255,.85); }
.nav-link:hover { color: #fff; text-decoration: none; }

/* ── 容器 ────────────────────────────────────────────────── */
.container       { max-width: 960px;  margin: 0 auto; padding: 32px 20px; }
.container-sm    { max-width: 520px;  margin: 0 auto; padding: 32px 20px; }
.container-wide  { max-width: 1200px; margin: 0 auto; padding: 32px 20px; }

/* ── 頁頭 ────────────────────────────────────────────────── */
.page-header { margin-bottom: 24px; }
.page-header h2 { font-size: 1.375rem; font-weight: 700; color: var(--text-1); }
.text-muted { font-size: .875rem; color: var(--text-3); margin-top: 4px; }

/* ── 卡片 ────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 24px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: #fafafa;
  font-weight: 600;
  font-size: .9375rem;
  gap: 12px;
}

/* ── 按鈕 ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary  { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-outline  { background: transparent; border-color: var(--border); color: var(--text-2); }
.btn-outline:hover:not(:disabled) { background: var(--bg); }
.btn-sm  { padding: 5px 12px; font-size: .8125rem; }
.btn-lg  { padding: 10px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

/* ── 表單元素 ────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-2);
}
input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .9375rem;
  color: var(--text-1);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 0 4px;
}

/* ── 警告 / 提示訊息 ─────────────────────────────────────── */
.alert {
  padding: 10px 16px;
  border-radius: 6px;
  font-size: .875rem;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-error   { background: var(--danger-light);  border-color: #fca5a5; color: var(--danger); }
.alert-success { background: var(--success-light); border-color: #86efac; color: var(--success); }
.alert-warning { background: var(--warning-light); border-color: #fcd34d; color: var(--warning); }
.alert-info    { background: var(--info-light);    border-color: #bfdbfe; color: var(--primary); }
.hidden { display: none !important; }

/* ── KPI 表單區塊 ────────────────────────────────────────── */
.kpi-section { padding: 20px 24px; border-bottom: 1px solid var(--border); }
.kpi-section:last-child { border-bottom: none; }
.kpi-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.kpi-hint {
  font-size: .8125rem;
  color: var(--text-3);
  margin-bottom: 12px;
  background: #f9fafb;
  padding: 6px 10px;
  border-radius: 4px;
  border-left: 3px solid var(--primary);
}
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.kpi-item label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 6px;
}
.kpi-item input { width: 100%; }
.kpi-total input { font-weight: 700; border-color: var(--primary); }
.kpi-code {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: .75rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 4px;
  min-width: 36px;
  text-align: center;
}
.field-error {
  font-size: .8125rem;
  color: var(--danger);
  margin-top: 8px;
  padding: 6px 10px;
  background: var(--danger-light);
  border-radius: 4px;
}

/* ── 資料表格 ────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.data-table th {
  background: #f9fafb;
  font-weight: 600;
  color: var(--text-2);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 9px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-1);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table .section-row td {
  background: #f3f4f6;
  font-weight: 700;
  color: var(--text-2);
  font-size: .8125rem;
  padding: 7px 16px;
}
.data-table .total-row td { font-weight: 700; background: var(--primary-light); }
.text-right { text-align: right; font-variant-numeric: tabular-nums; }
.table-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: #fafafa;
}

/* ── 管理者 tabs ─────────────────────────────────────────── */
.tab-bar {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border);
  padding-bottom: -2px;
}
.tab-btn {
  padding: 9px 20px;
  font-size: .9rem;
  font-weight: 500;
  border: none;
  background: none;
  color: var(--text-3);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
}
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 700;
}
.tab-btn:hover:not(.active) { color: var(--text-2); }

/* ── 工具列 ──────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.toolbar label { font-size: .875rem; font-weight: 500; white-space: nowrap; }
.toolbar select { width: auto; min-width: 120px; padding: 7px 10px; }

/* ── 登入頁 ──────────────────────────────────────────────── */
.page-login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}
.login-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0,0,0,.10);
  padding: 40px 36px;
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo-img { display: block; width: 80px; height: auto; margin: 0 auto 14px; }
.login-logo h1 { font-size: 1.125rem; font-weight: 700; color: var(--text-1); margin-bottom: 6px; }
.login-logo p  { font-size: .875rem; color: var(--text-3); }

/* ── 響應式 ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .navbar { padding: 0 16px; }
  .navbar-brand { font-size: .875rem; }
  .navbar-user  { gap: 10px; font-size: .8125rem; }

  .container, .container-sm, .container-wide { padding: 20px 16px; }

  .kpi-grid { grid-template-columns: 1fr; }

  .toolbar { flex-direction: column; align-items: flex-start; }
  .toolbar-right { width: 100%; }

  .data-table { font-size: .8125rem; }
  .data-table th, .data-table td { padding: 7px 10px; }

  .card-header { flex-wrap: wrap; gap: 8px; }

  .tab-btn { padding: 7px 14px; font-size: .85rem; }
}