/* --- การตั้งค่าพื้นฐานและสีหลัก (ปรับปรุงเพื่อ Contrast ที่ดีขึ้น) --- */
:root {
  /* New High-Contrast Palette */
  --primary-accent: #073B4C;
  --secondary-accent: #A39D87;
  --background-secondary: #F6F4F1;
  --dark-text: #262626;
  --light-bg: #FFFFFF;
  --border-color: #DCD9D4;               /* สีเส้นขอบ: เข้ากับโทนสีเบจ */
  --status-green: #157347;               /* ปรับให้เข้มขึ้นเพื่อให้ contrast กับ white ได้ดีขึ้น */
  --status-yellow: #FFC107;
  --status-gray: #495057;                /* ทำให้เข้มขึ้นเพื่ออ่านได้ชัดเจนขึ้น */
  --status-red: #C82333;                 /* ปรับให้เข้มขึ้นเพื่อให้ contrast กับ white ได้ดีขึ้น */
  --status-disabled-bg: #E9ECEF;
  --status-disabled-text: #6C757D;       /* ปรับให้เข้มขึ้นเล็กน้อยเพื่อการอ่านที่ดีขึ้น */
}

body {
  font-family: 'Prompt', sans-serif;
  background-color: #f8f9fa;
  color: var(--dark-text);
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 1.5rem 0;
}

#app-container {
  width: 100%;
  max-width: 960px;
  background-color: var(--light-bg);
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.07);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.app-header {
  background: linear-gradient(135deg, var(--primary-accent), #3E8E7E);
  color: var(--light-bg);
  padding: 2rem;
  text-align: center;
  position: relative;
}
.app-header h1 { margin: 0; font-weight: 500; font-size: 1.5rem; }
.app-header p { margin: 5px 0 0; opacity: 0.9; }
.icon-header { margin-right: 15px; vertical-align: middle; }

main#app-content {
  padding: 2rem;
}

.app-footer {
  text-align: center;
  padding: 1rem;
  background-color: var(--background-secondary);
  color: var(--status-gray);
  font-size: 0.9em;
  border-top: 1px solid var(--border-color);
}

#manager-mode-indicator {
    position: absolute; top: 10px; right: 10px; background-color: var(--status-yellow);
    color: var(--dark-text); padding: 5px 12px; border-radius: 20px;
    font-size: 0.85em; font-weight: 500; box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.manager-login-area { margin-top: 10px; }
.manager-login-area a { color: var(--primary-accent); text-decoration: none; font-size: 0.9em; }
.manager-login-area a:hover { text-decoration: underline; }

.loading-spinner {
  text-align: center; padding: 4rem; font-size: 1.2rem; color: var(--primary-accent);
}
.loading-spinner i { font-size: 2.5rem; margin-bottom: 1rem; display: block; }

.page-title {
  font-size: 1.8rem; color: var(--primary-accent); border-bottom: 2px solid var(--primary-accent);
  padding-bottom: 0.5rem; margin-bottom: 1.5rem; display: flex; align-items: center;
}
.page-title i { margin-right: 15px; }

/* ★★★★★★★★★★★★★★★★★★ สไตล์สำหรับกล่องตัวกรอง ★★★★★★★★★★★★★★★★★★ */
.filter-container {
  background-color: var(--background-secondary);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.filter-group {
  display: flex;
  flex-direction: column;
}

.filter-group label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--primary-accent);
  font-size: 0.9em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-group select {
  padding: 10px;
  font-family: 'Prompt', sans-serif;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: #fff;
  color: var(--dark-text);
}
.filter-group select:disabled {
  background-color: var(--status-disabled-bg);
  cursor: not-allowed;
  opacity: 0.7;
}

.filter-actions {
  margin-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.filter-actions .btn-reset {
  background-color: transparent;
  color: var(--status-gray);
  font-size: 0.9em;
  text-decoration: underline;
  border: none;
  cursor: pointer;
}
.filter-actions .btn-reset:hover {
  color: var(--dark-text);
}

.filter-actions .btn-search-filter {
    padding: 10px 20px;
    font-size: 1rem;
}
.filter-actions .btn-search-filter i {
    margin-right: 8px;
}

/* ▼▼▼▼▼ สไตล์สำหรับปุ่มหน้าแรก ▼▼▼▼▼ */
.home-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .home-actions {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

.btn-home-action {
  border: 2px solid var(--primary-accent);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.5s ease;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  text-decoration: none;
}

.btn-home-action .action-icon {
  font-size: 2.25rem;
  width: 50px;
  text-align: center;
  transition: color 0.3s ease;
}

.btn-home-action .action-text span {
  font-size: 1.25rem;
  font-weight: 700;
  display: block;
  line-height: 1.3;
}

.btn-home-action .action-text small {
  font-size: 0.9rem;
  font-weight: 300;
  opacity: 0.9;
}

.btn-home-action:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(44, 107, 97, 0.2);
}

.btn-home-action--outline {
  background-color: var(--light-bg);
  color: var(--primary-accent);
}

.btn-home-action--outline .action-icon {
  color: var(--primary-accent);
}

.btn-home-action--outline:hover {
  background-color: var(--primary-accent);
  color: var(--light-bg);
}

.btn-home-action--outline:hover .action-icon {
  color: var(--light-bg);
}

/* สไตล์สำหรับแถบสถิติ */
.subtle-stats-bar {
  text-align: center;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--status-gray);
}

.subtle-stats-bar .stat-group { display: inline-block; }
.subtle-stats-bar .stat-divider { margin: 0 1rem; color: #ccc; }
.subtle-stats-bar .stat-number { font-weight: 600; color: var(--dark-text); margin-left: 0.3rem; }
.subtle-stats-bar i { color: var(--primary-accent); margin-right: 4px; }
.subtle-stats-bar .loading-text { font-style: italic; }

@media (max-width: 600px) {
    .subtle-stats-bar .stat-group { display: block; margin-bottom: 0.5rem; }
    .subtle-stats-bar .stat-divider { display: none; }
}

#cancellation-search-view, #pre-check-view {
  max-width: 600px;
  margin: 2rem auto;
  text-align: center;
}
#cancellation-search-form .form-group, #pre-check-form .form-group { text-align: left; margin-bottom: 1rem; }
#cancellation-search-form input, #pre-check-form input { text-align: center; font-size: 1.2rem; letter-spacing: 2px; background-color: var(--background-secondary); color: var(--dark-text); }

.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.calendar-header h2 { margin: 0; font-size: 1.5rem; color: var(--primary-accent); }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.day-name { font-weight: 500; text-align: center; padding: 0.5rem; color: var(--primary-accent); }
.calendar-day { display: flex; justify-content: center; align-items: center; height: 60px; border-radius: 10px; cursor: pointer; transition: all 0.2s ease-in-out; font-weight: 500; border: 1px solid transparent; }
.calendar-day.date-available:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 15px rgba(40, 167, 69, 0.25);
  filter: brightness(110%);
}

.date-available { background-color: var(--status-green); color: white; }

.date-full { background-color: var(--status-red); color: white; cursor: not-allowed; }
.date-holiday, .date-disabled { background-color: var(--status-disabled-bg); color: var(--status-disabled-text); cursor: not-allowed; }
.calendar-legend { display: flex; justify-content: center; flex-wrap: wrap; gap: 15px; margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border-color); }
.legend-item { display: flex; align-items: center; font-size: 0.9em; }
.legend-color { width: 15px; height: 15px; border-radius: 3px; margin-right: 8px; }

.slots-table { width: 100%; border-collapse: collapse; margin-top: 1.5rem; }
.slots-table th, .slots-table td { padding: 1rem; border: 1px solid var(--border-color); text-align: center; }
.slots-table thead th { background-color: var(--primary-accent); color: white; font-weight: 500; }
.slots-table tbody tr:nth-child(even) { background-color: var(--background-secondary); }
.slots-table td { color: var(--dark-text); }

.booking-summary { background-color: var(--background-secondary); border-left: 5px solid var(--primary-accent); padding: 1.5rem; margin-bottom: 2rem; border-radius: 8px; }
.summary-item { margin: 0.5rem 0; font-size: 1.1rem; color: var(--dark-text); }
.summary-item strong { color: var(--primary-accent); }
.summary-item i { color: var(--primary-accent); margin-right: 8px; width: 20px; }

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-accent);
}
.form-group input, .form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Prompt', sans-serif;
    box-sizing: border-box;
    color: var(--dark-text);
}
.form-group input:read-only { background-color: var(--status-disabled-bg); cursor: not-allowed; }

.pdpa-consent-container { margin-top: 2rem; padding: 1rem; background-color: var(--background-secondary); border-radius: 8px; border: 1px solid var(--border-color); font-size: 0.9em; line-height: 1.6; color: var(--dark-text); }
.pdpa-checkbox-group { display: flex; align-items: center; gap: 0.75rem; cursor: pointer; }
.pdpa-checkbox-group input[type="checkbox"] { width: 1.25em; height: 1.25em; flex-shrink: 0; cursor: pointer; accent-color: var(--primary-accent); }
.pdpa-text a { color: var(--primary-accent); font-weight: 500; text-decoration: underline; }

.btn:disabled { background-color: var(--status-disabled-bg); color: var(--status-disabled-text); opacity: 1; cursor: not-allowed; }
.btn:disabled:hover { background-color: var(--status-disabled-bg); color: var(--status-disabled-text); opacity: 1; transform: translateY(0); }
.btn { padding: 12px 20px; border: none; border-radius: 8px; cursor: pointer; font-family: 'Prompt', sans-serif; font-size: 1rem; font-weight: 500; transition: all 0.2s; background-color: var(--primary-accent); color: white; display: inline-flex; align-items: center; justify-content: center; gap: 8px;}
.btn:hover:not(:disabled) { filter: brightness(115%); transform: translateY(-2px); }
.btn-book { background-color: var(--status-green); color: white; }
.btn-full { background-color: var(--status-disabled-bg); color: var(--status-disabled-text); border: 1px solid #ddd; }
.btn-slot { min-width: 80px; padding: 8px 12px; font-size: 0.9em; }
.btn-action-group { display: flex; justify-content: flex-end; gap: 1rem; margin-top: 2rem; }
.btn-secondary { background-color: var(--status-gray); }
.btn-secondary:hover:not(:disabled) { background-color: #5a6268; filter: brightness(100%); }

.print-all-container { text-align: right; margin-bottom: 1rem; }

@media (max-width: 768px) {
  body { padding: 0; background-color: var(--light-bg); }
  #app-container { border-radius: 0; box-shadow: none; min-height: 100vh; border: none; }
  .app-header { padding: 1.5rem 1rem; }
  main#app-content { padding: 1.5rem 1rem; }
  .page-title { font-size: 1.4rem; }
  .calendar-day { height: 45px; }
  .slots-table, .slots-table thead, .slots-table tbody, .slots-table th, .slots-table td, .slots-table tr { display: block; }
  .slots-table thead tr { position: absolute; top: -9999px; left: -9999px; }
  .slots-table tr { border: 1px solid var(--border-color); border-radius: 8px; margin-bottom: 1rem; padding: 0.5rem; }
  .slots-table td { border: none; border-bottom: 1px solid #f0f0f0; position: relative; padding: 12px 10px 12px 45%; text-align: right; display: flex; justify-content: space-between; align-items: center; }
  .slots-table tr td:last-child { border-bottom: none; }
  .slots-table td:before { position: absolute; top: 50%; left: 15px; transform: translateY(-50%); width: auto; padding-right: 10px; white-space: nowrap; content: attr(data-label); font-weight: bold; color: var(--primary-accent); text-align: left; }
  .btn-action-group { flex-direction: column-reverse; gap: 12px; }
  .btn-action-group .btn { width: 100%; box-sizing: border-box; }
}

@media print {
  @page { size: A5 portrait; margin: 0; }
  body > *:not(#appointment-slip-print-container) { display: none !important; }
  #appointment-slip-print-container { display: block !important; font-family: 'Sarabun', 'Prompt', sans-serif; color: #000; }
  .slip-container { border: 1px solid #333; box-sizing: border-box; padding: 1.5cm; display: flex; flex-direction: column; width: 100vw; min-height: 100vh; box-shadow: none; page-break-inside: avoid; }
  .slip-header { text-align: center; border-bottom: 1px solid #aaa; padding-bottom: 0.5cm; margin: 0 0 0.8cm 0; flex-shrink: 0; }
  .slip-header h2 { font-size: 16pt; margin: 0; font-weight: 700; }
  .slip-header p { font-size: 11pt; margin: 5px 0 0; }
  .slip-section { margin: 0 0 0.8cm 0; }
  .slip-section.slip-section-main { flex-grow: 1; }
  .slip-section h3 { font-size: 13pt; font-weight: bold; margin: 0 0 8px 0; }
  .slip-section p { font-size: 13pt; line-height: 1.6; margin: 6px 0; }
  .slip-footer { margin-top: auto; text-align: center; font-size: 9pt; padding-top: 0.5cm; border-top: 1px solid #ccc; line-height: 1.4; flex-shrink: 0; }
  .slip-table { width: 100%; border-collapse: collapse; margin-top: 8px; page-break-inside: auto; }
  .slip-table thead { display: table-header-group; }
  .slip-table tr { page-break-inside: avoid; }
  .slip-table th, .slip-table td { border: 1px solid #999; padding: 8px; font-size: 10pt; text-align: left; }
  .slip-table th { background-color: #f2f2f2; font-weight: bold; }
}

/* --- PDPA Modal --- */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.6); display: flex; justify-content: center; align-items: center; z-index: 1000; padding: 1rem;
}
.modal-content {
  background-color: #fff; padding: 1.5rem 2rem; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.25); width: 100%; max-width: 700px; max-height: 85vh; overflow-y: auto; position: relative;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); padding-bottom: 1rem; margin-bottom: 1rem; }
.modal-header h2 { margin: 0; color: var(--primary-accent); font-size: 1.4rem; }
.modal-close-btn { font-size: 2rem; font-weight: bold; color: #aaa; cursor: pointer; background: none; border: none; line-height: 1; }
.modal-close-btn:hover { color: var(--dark-text); }
.modal-body h4 { color: var(--primary-accent); margin-top: 1.5rem; }
.modal-body ul { padding-left: 20px; line-height: 1.8; }

/* --- Manager Specific Styles --- */
.manager-dashboard .home-actions {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.form-container {
    max-width: 600px;
    margin: 1rem auto;
    padding: 2rem;
    background-color: var(--background-secondary);
    border-radius: 12px;
}
.edit-patient-result {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: #fff;
}
.edit-patient-result .form-group input:read-only {
    font-weight: bold;
    color: var(--primary-accent);
    background-color: #fff;
    border-color: transparent;
    padding-left: 0;
}

/* --- สไตล์สำหรับจัดกลางปุ่มล็อกอิน --- */
.login-button-container {
  text-align: center;
  margin-top: 1.5rem;
}