:root {
  --primary: #1e3a5f;
  --primary-light: #2c5282;
  --accent: #5B7B8A;
  --bg: #f0f4f8;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1a202c;
  --text-muted: #718096;
  --success: #38a169;
  --danger: #e53e3e;
  --warning: #d69e2e;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Noto Sans TC', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Login Page ── */
.login-bg {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e3a5f 0%, #2c5282 50%, #5B7B8A 100%);
}
.login-card {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 40px;
  width: 380px;
  color: #fff;
}
.login-card h1 { font-size: 22px; text-align: center; margin-bottom: 8px; }
.login-card p { text-align: center; font-size: 13px; opacity: 0.7; margin-bottom: 28px; }
.login-card label { display: block; font-size: 13px; margin-bottom: 4px; opacity: 0.8; }
.login-card input {
  width: 100%; padding: 10px 14px; border: 1px solid rgba(255,255,255,0.3);
  border-radius: 8px; background: rgba(255,255,255,0.1); color: #fff;
  font-size: 14px; margin-bottom: 16px; outline: none;
}
.login-card input::placeholder { color: rgba(255,255,255,0.4); }
.login-card input:focus { border-color: rgba(255,255,255,0.6); background: rgba(255,255,255,0.15); }
.login-card .btn-login {
  width: 100%; padding: 12px; border: none; border-radius: 8px;
  background: rgba(255,255,255,0.2); color: #fff; font-size: 15px;
  font-weight: 600; cursor: pointer; transition: background 0.2s;
}
.login-card .btn-login:hover { background: rgba(255,255,255,0.3); }
.login-error { color: #fc8181; font-size: 13px; text-align: center; margin-top: 12px; display: none; }

/* ── Dashboard ── */
.header {
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.header h1 { font-size: 18px; font-weight: 600; }
.header .btn-logout {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: none;
  padding: 6px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.header .btn-logout:hover { background: rgba(255,255,255,0.25); }

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.toolbar .search-input {
  flex: 1;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}
.toolbar .search-input:focus { border-color: var(--accent); }

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { opacity: 0.9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { background: var(--bg); }

/* ── Table ── */
.table-wrap { padding: 16px 24px; overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
th, td {
  padding: 10px 14px;
  text-align: left;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  cursor: pointer;
  user-select: none;
}
th:hover { color: var(--text); }
tr:hover td { background: #f7fafc; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}
.badge-active { background: #c6f6d5; color: #22543d; }
.badge-planned { background: #fefcbf; color: #744210; }
.badge-expired { background: #fed7d7; color: #742a2a; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--card);
  border-radius: 12px;
  width: 700px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 16px; }
.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px 8px;
}
.modal-body { padding: 20px; }
.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ── Form ── */
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-row { display: flex; gap: 14px; }
.form-row .form-group { flex: 1; }

/* ── Sections in modal ── */
.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin: 20px 0 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--primary);
}
.service-checks { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0; }
.service-checks label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  cursor: pointer;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all 0.2s;
}
.service-checks label:hover { border-color: var(--accent); }
.service-checks input[type="checkbox"] { accent-color: var(--accent); }

.service-list { margin: 8px 0; }
.service-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 13px;
}
.service-item .service-name { font-weight: 500; min-width: 120px; }
.service-item a { color: var(--accent); text-decoration: none; }
.service-item a:hover { text-decoration: underline; }

.contract-list { margin: 8px 0; }
.contract-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 4px;
  font-size: 13px;
}
.contract-item a { color: var(--accent); text-decoration: none; }

.empty-hint { color: var(--text-muted); font-size: 13px; font-style: italic; padding: 8px 0; }

@media (max-width: 600px) {
  .form-row { flex-direction: column; gap: 0; }
  .toolbar { flex-wrap: wrap; }
  .modal { width: 100%; border-radius: 0; max-height: 100vh; }
}