/* =========================================================
   PatientCare Pro - Patient Monitoring System Styles
   ========================================================= */

:root {
    --primary: #1a3a5c;
    --primary-light: #2e6da4;
    --primary-dark: #0f2440;
    --accent: #00b894;
    --accent-hover: #00a381;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --success: #27ae60;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f4f8;
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== Top Navigation ===== */
.navbar {
    background: var(--primary);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.3px;
}

.navbar-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
}

.navbar-brand small {
    font-weight: 400;
    font-size: 13px;
    opacity: 0.7;
    display: block;
    line-height: 1.2;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    list-style: none;
}

.navbar-nav .nav-item .nav-link {
    color: rgba(255,255,255,0.8);
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.navbar-nav .nav-item .nav-link:hover,
.navbar-nav .nav-item .nav-link.active {
    background: rgba(255,255,255,0.12);
    color: #fff;
}

.navbar-nav .nav-item .nav-link.active {
    background: var(--accent);
    color: #fff;
}

/* ===== Main Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
}

.page-header p {
    color: var(--gray-600);
    font-size: 14px;
    margin-top: 2px;
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-card .stat-icon.blue { background: #e8f4fd; color: var(--info); }
.stat-card .stat-icon.green { background: #e8faf0; color: var(--success); }
.stat-card .stat-icon.orange { background: #fef5e7; color: var(--warning); }
.stat-card .stat-icon.red { background: #fde8e8; color: var(--danger); }

.stat-card .stat-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-card .stat-info span {
    font-size: 13px;
    color: var(--gray-600);
}

/* ===== Search & Filters ===== */
.search-bar {
    background: #fff;
    border-radius: var(--radius);
    padding: 16px 20px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.search-bar .form-control {
    flex: 1;
    min-width: 200px;
}

.search-bar .btn {
    flex-shrink: 0;
}

/* ===== Cards & Tables ===== */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.card-header h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
}

.card-body {
    padding: 24px;
}

.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th {
    background: var(--gray-100);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-600);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200);
    vertical-align: middle;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: #f8fbff;
}

.table .patient-name {
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
}

.table .patient-name:hover {
    color: var(--accent);
}

.table .actions {
    display: flex;
    gap: 6px;
    white-space: nowrap;
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-success { background: #d4edda; color: #155724; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-danger  { background: #f8d7da; color: #721c24; }
.badge-info    { background: #d1ecf1; color: #0c5460; }
.badge-secondary { background: var(--gray-200); color: var(--gray-700); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
    line-height: 1.4;
}

.btn-primary { background: var(--primary-light); color: #fff; }
.btn-primary:hover { background: var(--primary); }

.btn-success { background: var(--accent); color: #fff; }
.btn-success:hover { background: var(--accent-hover); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c0392b; }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #d68910; }

.btn-info { background: var(--info); color: #fff; }
.btn-info:hover { background: #2980b9; }

.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover { border-color: var(--primary-light); color: var(--primary-light); }

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }

/* ===== Form Controls ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: #fff;
    color: var(--gray-800);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(46, 109, 164, 0.15);
}

.form-control::placeholder {
    color: var(--gray-500);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236c757d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

textarea.form-control {
    min-height: 80px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-inline {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

/* ===== Alerts ===== */
.alert {
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger  { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }
.alert-warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }

.alert-dismissible {
    padding-right: 40px;
}

.btn-close {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    line-height: 1;
}

.btn-close:hover { opacity: 1; }

/* ===== Patient Details ===== */
.patient-profile {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.patient-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #fff;
    flex-shrink: 0;
}

.patient-info h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.patient-info .patient-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 4px;
    color: var(--gray-600);
    font-size: 14px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.detail-item {
    padding: 12px 16px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
}

.detail-item .label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-600);
    margin-bottom: 2px;
}

.detail-item .value {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-900);
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-600);
}

.empty-state .empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.empty-state p {
    max-width: 400px;
    margin: 0 auto 20px;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-decoration: none;
    color: var(--gray-700);
    background: #fff;
    border: 1px solid var(--gray-300);
    transition: var(--transition);
}

.pagination a:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
}

.pagination .active {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--primary-light);
}

.pagination .disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* ===== Modal ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1050;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: #fff;
    border-radius: var(--radius);
    max-width: 500px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h5 { font-size: 16px; font-weight: 600; }

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container { padding: 16px; }
    .page-header h1 { font-size: 20px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr 1fr; }
    .navbar { padding: 0 16px; }
    .navbar-nav .nav-item .nav-link { padding: 6px 10px; font-size: 12px; }
    .table { font-size: 13px; }
    .table th, .table td { padding: 8px 10px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-600); }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.flex-wrap { flex-wrap: wrap; }
.w-100 { width: 100%; }

/* ===== Print Styles ===== */
@media print {
    .navbar, .actions, .search-bar, .btn, .no-print { display: none !important; }
    .card { box-shadow: none; border: 1px solid #ddd; }
    body { background: #fff; }
}