/* style.css - NAD Receipt Form - Mobile First, Ultra Compact */

:root {
  --primary: #1a3a5f;
  --primary-dark: #0d2b47;
  --primary-light: #2a5a8c;
  --accent: #3498db;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #1a2a3a;
  --text-muted: #6b7b8c;
  --border: #dbe2ea;
  --shadow: 0 2px 8px rgba(26,58,95,0.08);
  --shadow-hover: 0 4px 16px rgba(26,58,95,0.12);
  --radius: 8px;
  --radius-sm: 4px;
  --spacing: 12px;
  --spacing-sm: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Dark mode variables */
[data-theme="dark"] {
  --primary: #2a5a8c;
  --primary-dark: #1e3f66;
  --primary-light: #3a7bc8;
  --accent: #60a5fa;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --bg: #0f172a;
  --card: #1e293b;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #334155;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.5; min-height: 100vh; }

/* Screen Management */
.screen { display: none; min-height: 100vh; }
.screen:not(.hidden) { display: block; }

/* Login Screen */
.login-box { max-width: 360px; margin: 40px auto; padding: 28px 24px; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); }
.login-header { text-align: center; margin-bottom: 24px; }
.login-header .logo { width: 64px; height: 64px; margin-bottom: 12px; color: var(--primary); }
.login-header h1 { font-size: 1.5rem; color: var(--primary); margin-bottom: 4px; }
.login-header p { color: var(--text-muted); font-size: 0.9rem; }
.login-footer { text-align: center; margin-top: 20px; color: var(--text-muted); font-size: 0.8rem; }

/* Auth Form Switch */
.auth-switch { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 16px; font-size: 0.85rem; color: var(--text-muted); }
.auth-switch a { color: var(--accent); text-decoration: none; font-weight: 500; }
.auth-switch a:hover { text-decoration: underline; }

/* Login Form Links */
.field-links { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; font-size: 0.85rem; }
.forgot-link { color: var(--accent); text-decoration: none; }
.forgot-link:hover { text-decoration: underline; }

/* App Header - Sticky */
.app-header { position: sticky; top: 0; z-index: 100; display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: var(--primary); color: white; box-shadow: var(--shadow); }
.header-left { display: flex; align-items: center; gap: 10px; }
.logo-sm { width: 32px; height: 32px; flex-shrink: 0; }
.app-header h1 { font-size: 1.1rem; font-weight: 600; white-space: nowrap; }
.header-right { display: flex; align-items: center; gap: 10px; }
.user-badge { font-size: 0.75rem; background: rgba(255,255,255,0.2); padding: 4px 10px; border-radius: 20px; }
.icon-btn { background: none; border: none; color: inherit; font-size: 1.2rem; padding: 6px; border-radius: var(--radius-sm); cursor: pointer; opacity: 0.9; }
.icon-btn:hover { opacity: 1; background: rgba(255,255,255,0.1); }

/* Main Content */
.app-main { padding: var(--spacing) var(--spacing) 100px; max-width: 100%; }

/* Search Section */
.search-section { margin-bottom: var(--spacing); }
.search-box { position: relative; }
.search-box .search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--text-muted); pointer-events: none; }
.search-box input { width: 100%; padding: 12px 12px 12px 40px; border: 2px solid var(--border); border-radius: var(--radius); font-size: 1rem; background: var(--card); }
.search-box input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(52,152,219,0.2); }
.search-box .icon-btn { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); color: var(--text-muted); }

/* Search Dropdown */
.dropdown { position: absolute; top: calc(100% + 4px); left: 0; right: 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-hover); max-height: 280px; overflow-y: auto; z-index: 50; }
.dropdown.hidden { display: none; }
.search-result { padding: 12px 14px; border-bottom: 1px solid var(--border); cursor: pointer; transition: background 0.15s; }
.search-result:last-child { border-bottom: none; }
.search-result:hover, .search-result:active { background: var(--bg); }
.search-result strong { display: block; font-size: 0.95rem; margin-bottom: 2px; }
.search-result .meta { display: block; font-size: 0.75rem; color: var(--text-muted); }

/* Form */
.receipt-form { background: var(--card); border-radius: var(--radius); padding: var(--spacing); box-shadow: var(--shadow); margin-bottom: var(--spacing); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-sm); }
.field { margin-bottom: var(--spacing-sm); }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.3px; margin-bottom: 4px; }
.req { color: var(--danger); margin-left: 2px; }
.field input, .field textarea, .field select { width: 100%; padding: 10px 12px; border: 2px solid var(--border); border-radius: var(--radius-sm); font-size: 0.95rem; font-family: inherit; background: var(--card); transition: border-color 0.15s, box-shadow 0.15s; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(52,152,219,0.2); }
.field input.error, .field textarea.error { border-color: var(--danger); }
.field textarea { resize: vertical; min-height: 60px; }
.checkbox-field { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; cursor: pointer; margin-bottom: 12px; }
.checkbox-field input { width: 18px; height: 18px; accent-color: var(--primary); }

/* Radio Groups */
.radio-group { margin-bottom: var(--spacing-sm); padding: var(--spacing-sm); background: var(--bg); border-radius: var(--radius-sm); }
.radio-group legend { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; margin-bottom: 8px; padding: 0 4px; }
.radio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(80px, 1fr)); gap: 6px; }
.radio-label { display: flex; align-items: center; gap: 6px; padding: 8px 10px; background: var(--card); border: 2px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; font-size: 0.85rem; transition: all 0.15s; white-space: nowrap; }
.radio-label:hover { border-color: var(--accent); }
.radio-label:has(input:checked) { border-color: var(--primary); background: #eaf2fa; }
.radio-label input { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.radio-group.inline .radio-grid { grid-template-columns: repeat(2, 1fr); }
.other-field { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border); }
.other-field.hidden { display: none; }

/* Buttons */
.btn-group { display: flex; gap: var(--spacing-sm); margin-top: var(--spacing-sm); }
.btn-primary, .btn-secondary { flex: 1; padding: 12px 16px; border: none; border-radius: var(--radius-sm); font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.15s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:active { transform: scale(0.98); }
.btn-secondary { background: var(--bg); color: var(--text); border: 2px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 12px; font-size: 0.85rem; }
button:disabled { opacity: 0.6; cursor: not-allowed; }

/* Recent Panel - Collapsible */
.recent-panel { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.panel-header { display: flex; align-items: center; justify-content: space-between; padding: var(--spacing-sm) var(--spacing); background: var(--bg); border-bottom: 1px solid var(--border); }
.panel-header h3 { font-size: 0.9rem; font-weight: 600; }
.panel-controls { display: flex; align-items: center; gap: 8px; }
.select-sm { padding: 6px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.8rem; background: var(--card); }
#recentList { overflow: hidden; transition: max-height 0.3s ease, opacity 0.2s ease; }
#recentList.collapsed { max-height: 0; opacity: 0; padding: 0; pointer-events: none; }

/* Table */
.table-wrapper { overflow-x: auto; }
#recentTable { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
#recentTable th, #recentTable td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
#recentTable th { background: var(--primary); color: white; font-weight: 600; position: sticky; top: 0; z-index: 10; cursor: pointer; user-select: none; }
#recentTable th:hover { background: var(--primary-dark); }
#recentTable th.sort-asc::after { content: ' ▲'; font-size: 0.7em; }
#recentTable th.sort-desc::after { content: ' ▼'; font-size: 0.7em; }
#recentTable tbody tr { cursor: pointer; transition: background 0.15s; }
#recentTable tbody tr:hover { background: var(--bg); }
#recentTable td:first-child { font-weight: 600; color: var(--primary); }
#recentTable .empty { text-align: center; color: var(--text-muted); padding: 40px 20px; font-style: italic; }
.status-badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 0.7rem; font-weight: 600; text-transform: capitalize; }
.status-badge.paid { background: #d4edda; color: #155724; }
.status-badge.pending { background: #fff3cd; color: #856404; }

/* Pagination */
.pagination { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 6px; padding: var(--spacing-sm); border-top: 1px solid var(--border); }
.pagination button { padding: 6px 10px; border: 1px solid var(--border); background: var(--card); border-radius: var(--radius-sm); font-size: 0.8rem; cursor: pointer; min-width: 36px; }
.pagination button:hover { background: var(--bg); border-color: var(--accent); }
.pagination button.active { background: var(--primary); color: white; border-color: var(--primary); }
.pagination span { color: var(--text-muted); font-size: 0.8rem; }

/* Admin Actions */
.admin-actions { padding: var(--spacing-sm) var(--spacing); text-align: right; }
.admin-actions.hidden { display: none; }

/* Toasts */
#toastContainer { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 1000; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
.toast { padding: 12px 20px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 500; box-shadow: var(--shadow-hover); transform: translateY(100px); opacity: 0; transition: all 0.3s ease; pointer-events: auto; max-width: 90vw; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--success); color: white; }
.toast.error { background: var(--danger); color: white; }

/* Modals */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 2000; padding: 16px; animation: fadeIn 0.2s ease; }
.modal { background: var(--card); border-radius: var(--radius); width: 100%; max-width: 360px; box-shadow: var(--shadow-hover); animation: slideUp 0.3s ease; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: 1.1rem; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 1.5rem; color: var(--text-muted); cursor: pointer; padding: 4px; line-height: 1; }
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; }
.modal-body p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
.modal-body .btn-group { margin-top: 8px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Responsive */
@media (max-width: 480px) {
  :root { --spacing: 10px; --spacing-sm: 6px; }
  .app-main { padding: var(--spacing); }
  .form-row { grid-template-columns: 1fr; gap: var(--spacing-sm); }
  .radio-grid { grid-template-columns: 1fr 1fr; }
  .radio-group.inline .radio-grid { grid-template-columns: 1fr 1fr; }
  .btn-group { flex-direction: column; }
  .panel-header { flex-direction: column; gap: 8px; align-items: flex-start; }
  #recentTable th, #recentTable td { padding: 8px 10px; font-size: 0.75rem; }
}

@media (min-width: 600px) {
  .receipt-form { padding: 16px; }
  .form-row { grid-template-columns: 1fr 1fr; }
  .radio-grid { grid-template-columns: repeat(4, 1fr); }
  .radio-group.inline .radio-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .app-main { max-width: 720px; margin: 0 auto; padding: 20px 16px 100px; }
  .search-section { position: sticky; top: 56px; z-index: 50; background: var(--bg); padding-bottom: 12px; margin: -12px -16px 16px; }
}