/* ==========================================================================
   Premium Healthcare UI/UX Theme
   Colors: Primary (#0EA5E9), Secondary (#06B6D4), Accent (#10B981)
   Features: Glassmorphism, Soft Shadows, Smooth Animations
   ========================================================================== */

:root {
    /* Color Palette */
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #e0f2fe;
    --secondary: #06b6d4;
    --accent: #10b981;
    --accent-light: #d1fae5;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #0f172a;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-800: #1e293b;
    --bg-color: #f8fafc;
    --white: #ffffff;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glass: 0 8px 32px 0 rgba(14, 165, 233, 0.1);

    /* Radii */
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--gray-800);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', 'Inter', sans-serif;
    font-weight: 700;
    color: var(--dark);
}

/* ==========================================================================
   Utility Classes (Glassmorphism & Gradients)
   ========================================================================== */

.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-glass);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(14, 165, 233, 0.15);
}

.glass-nav {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-sm);
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.bg-gradient-accent {
    background: linear-gradient(135deg, var(--accent) 0%, #059669 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Bootstrap Overrides
   ========================================================================== */

/* Buttons */
.btn {
    border-radius: 0.5rem;
    padding: 0.6rem 1.2rem;
    font-weight: 600;
    transition: var(--transition);
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.4);
}

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent) 0%, #059669 100%);
    border: none;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    background: var(--white);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
    font-weight: 700;
    color: var(--dark);
    border-top-left-radius: var(--radius-lg) !important;
    border-top-right-radius: var(--radius-lg) !important;
}

/* Tables */
.table {
    vertical-align: middle;
}

.table th {
    background-color: var(--gray-100);
    color: var(--gray-500);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
    padding: 1rem;
}

.table td {
    padding: 1rem;
    color: var(--gray-800);
    border-bottom: 1px solid var(--gray-200);
}

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

.table tbody tr:hover {
    background-color: var(--gray-100);
}

/* Forms */
.form-control, .form-select {
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    transition: var(--transition);
    font-size: 0.95rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(14, 165, 233, 0.25);
}

.input-group-text {
    border-radius: 0.5rem;
    background-color: var(--gray-100);
    border: 1px solid var(--gray-300);
    color: var(--gray-500);
}

/* Badges */
.badge {
    padding: 0.4rem 0.8rem;
    border-radius: 2rem;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
}

.bg-success { background-color: var(--accent) !important; }
.bg-primary { background-color: var(--primary) !important; }
.bg-info { background-color: var(--secondary) !important; }
.bg-warning { background-color: var(--warning) !important; color: #fff; }

/* Alerts */
.alert {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Dashboard Sidebar & Layouts
   ========================================================================== */

.modern-sidebar {
    background: var(--dark);
    min-height: 100vh;
    box-shadow: var(--shadow-lg);
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    z-index: 1000;
    transition: var(--transition);
}

.modern-sidebar-header {
    padding: 1.5rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modern-sidebar .nav-link {
    color: var(--gray-400);
    padding: 0.8rem 1.5rem;
    margin: 0.25rem 1rem;
    border-radius: 0.5rem;
    transition: var(--transition);
    font-weight: 500;
    display: flex;
    align-items: center;
}

.modern-sidebar .nav-link i {
    font-size: 1.1rem;
    margin-right: 0.75rem;
    width: 24px;
    text-align: center;
}

.modern-sidebar .nav-link:hover,
.modern-sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transform: translateX(5px);
}

.modern-sidebar .nav-link.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.modern-main-content {
    margin-left: 260px;
    padding: 2rem;
    min-height: 100vh;
    background-color: var(--bg-color);
}

.page-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-title {
    font-size: 1.5rem;
    margin: 0;
    color: var(--dark);
}

/* Dashboard Stat Cards */
.stat-card {
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.stat-icon {
    font-size: 2.5rem;
    opacity: 0.8;
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    font-family: 'Outfit', sans-serif;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 500;
}

.bg-stat-1 { background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%); }
.bg-stat-2 { background: linear-gradient(135deg, #10b981 0%, #059669 100%); }
.bg-stat-3 { background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); }
.bg-stat-4 { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }

/* Responsive */
@media (max-width: 991.98px) {
    .modern-sidebar {
        width: 100%;
        position: relative;
        min-height: auto;
    }
    .modern-main-content {
        margin-left: 0;
        padding: 1rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--gray-100);
}
::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}