/* ========================================
   ClinicPro — Main Stylesheet
   Professional Single-Doctor Clinic System
   ======================================== */

:root {
    /* Primary Palette — Medical Teal */
    --primary-50: #e6f7f7;
    --primary-100: #b3e8e8;
    --primary-200: #80d8d8;
    --primary-300: #4dc8c8;
    --primary-400: #26b5b5;
    --primary-500: #0d7377;
    --primary-600: #0a5e62;
    --primary-700: #07494d;
    --primary-800: #053638;
    --primary-900: #032223;

    /* Neutrals */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Semantic Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --header-height: 72px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-primary: 0 4px 20px rgba(13,115,119,0.25);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

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

body {
    font-family: 'Cairo', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    font-size: 14px;
    overflow: hidden;
}

#app {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* ========================================
   SIDEBAR
   ======================================== */
.sidebar {
    width: var(--sidebar-width);
    background: white;
    border-left: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base);
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    padding: 20px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--gray-100);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-500);
}

.logo svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.logo span {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .logo span {
    opacity: 0;
    width: 0;
    display: none;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    color: var(--gray-500);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-item svg {
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.nav-item:hover {
    background: var(--primary-50);
    color: var(--primary-600);
}

.nav-item.active {
    background: var(--primary-500);
    color: white;
    box-shadow: var(--shadow-primary);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--primary-500);
    border-radius: 2px;
}

.nav-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 12px 4px;
}

.sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid var(--gray-100);
}

.doctor-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.doctor-avatar {
    width: 36px;
    height: 36px;
    background: var(--primary-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-500);
    flex-shrink: 0;
}

.doctor-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .doctor-details {
    opacity: 0;
    display: none;
}

.doctor-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--gray-700);
    white-space: nowrap;
}

.doctor-specialty {
    font-size: 11px;
    color: var(--gray-400);
    white-space: nowrap;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--gray-50);
}

/* ========================================
   TOP HEADER
   ======================================== */
.top-header {
    height: var(--header-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    flex-shrink: 0;
}

.header-left h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.header-left p {
    font-size: 13px;
    color: var(--gray-400);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box svg {
    position: absolute;
    right: 12px;
    color: var(--gray-400);
    pointer-events: none;
}

.search-box input {
    width: 260px;
    padding: 10px 14px 10px 38px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    font-family: inherit;
    font-size: 13px;
    color: var(--gray-700);
    outline: none;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--primary-400);
    background: white;
    box-shadow: 0 0 0 3px var(--primary-50);
}

.search-box input::placeholder {
    color: var(--gray-300);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-500);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    background: var(--primary-600);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(13,115,119,0.3);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-600);
}

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

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    color: var(--gray-500);
}

.btn-icon:hover {
    background: var(--primary-50);
    color: var(--primary-500);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
}

.date-display {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
    padding: 8px 14px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
}

/* ========================================
   PAGE CONTENT
   ======================================== */
.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px 28px;
}

/* Custom scrollbar */
.page-content::-webkit-scrollbar {
    width: 6px;
}
.page-content::-webkit-scrollbar-track {
    background: transparent;
}
.page-content::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

/* ========================================
   CARDS
   ======================================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.stat-icon.teal { background: var(--primary-50); color: var(--primary-500); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.amber { background: var(--warning-light); color: var(--warning); }
.stat-icon.blue { background: var(--info-light); color: var(--info); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }

.stat-info h3 {
    font-size: 28px;
    font-weight: 800;
    color: var(--gray-800);
    line-height: 1.2;
}

.stat-info p {
    font-size: 13px;
    color: var(--gray-400);
    font-weight: 500;
}

/* ========================================
   TABLE
   ======================================== */
.table-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.table-header {
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--gray-100);
}

.table-header h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-700);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--gray-50);
}

.data-table th {
    padding: 14px 20px;
    text-align: right;
    font-size: 12px;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--gray-200);
}

.data-table td {
    padding: 14px 20px;
    font-size: 14px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ========================================
   BADGES
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-gray { background: var(--gray-100); color: var(--gray-500); }

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 14px;
    color: var(--gray-800);
    background: white;
    outline: none;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-input::placeholder {
    color: var(--gray-300);
}

/* ========================================
   MODALS
   ======================================== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal {
    background: white;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 640px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: modalSlide 250ms ease;
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: 24px 28px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body {
    padding: 24px 28px;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 18px 28px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ========================================
   TOAST
   ======================================== */
.toast-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: white;
    border-radius: var(--radius-md);
    padding: 14px 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    animation: toastSlide 300ms ease;
    border-right: 4px solid;
    min-width: 300px;
}

.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.warning { border-color: var(--warning); color: var(--warning); }
.toast.info { border-color: var(--info); color: var(--info); }

@keyframes toastSlide {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .sidebar, .top-header, .btn, .modal-overlay {
        display: none !important;
    }
    .main-content {
        margin: 0;
        padding: 0;
    }
    .page-content {
        padding: 0;
        overflow: visible;
    }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        right: 0;
        top: 0;
        bottom: 0;
        transform: translateX(100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
    .search-box input {
        width: 160px;
    }
}