/* 
 * MODERN THEME - Hospital Management System
 * Style: Glassmorphism, Soft UI, Modern Medical
 * Font: Poppins (Headings), Inter (Body)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Poppins:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette - Medical Tech */
    --primary: #4361ee;
    --primary-dark: #3f37c9;
    --primary-light: #4895ef;
    --secondary: #4cc9f0;
    --success: #2ec4b6;
    --danger: #ef233c;
    --warning: #ffb703;
    --info: #3a0ca3;
    
    /* Backgrounds */
    --bg-body: #f0f5fa;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    
    /* Text */
    --text-main: #2b2d42;
    --text-muted: #8d99ae;
    
    /* Effects */
    --shadow-sm: 0 2px 4px rgba(67, 97, 238, 0.05);
    --shadow-md: 0 5px 15px rgba(67, 97, 238, 0.08);
    --shadow-lg: 0 15px 35px rgba(67, 97, 238, 0.1);
    --shadow-hover: 0 20px 40px rgba(67, 97, 238, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--text-main);
}

/* Glassmorphism Utilities */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

/* Modern Cards */
.card {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    background: var(--bg-card);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

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

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #20a094 100%);
    box-shadow: 0 4px 15px rgba(46, 196, 182, 0.3);
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
}

/* Form Elements */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1px solid #e2e8f0;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    background-color: #f8f9fa;
}

.form-control:focus, .form-select:focus {
    background-color: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
}

/* Sidebar Styling */
.sidebar {
    background: var(--bg-sidebar) !important;
    border-right: none;
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.sidebar .nav-link {
    color: var(--text-muted);
    font-weight: 500;
    padding: 0.8rem 1.2rem;
    margin-bottom: 0.3rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.sidebar .nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 10px;
    font-size: 1.1rem;
    transition: var(--transition);
}

.sidebar .nav-link:hover {
    color: var(--primary);
    background-color: rgba(67, 97, 238, 0.05);
    transform: translateX(5px);
}

.sidebar .nav-link.active {
    color: white;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.sidebar .nav-link.active i {
    color: white;
}

/* Sidebar Toggle Buttons (Accordion) */
.btn-toggle {
    color: var(--text-muted);
    background-color: transparent;
    border: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    position: relative;
    transition: var(--transition);
}

.btn-toggle:hover, .btn-toggle[aria-expanded="true"] {
    color: var(--primary);
    background-color: rgba(67, 97, 238, 0.05);
}

.btn-toggle::after {
    width: 1.25em;
    line-height: 0;
    content: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='rgba%280,0,0,.5%29' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/%3e%3c/svg%3e");
    transition: transform .35s ease;
    transform-origin: .5em 50%;
    position: absolute;
    right: 1rem;
}

.btn-toggle[aria-expanded="true"]::after {
    transform: rotate(90deg);
}

.btn-toggle-nav a {
    padding: .5rem 1.25rem .5rem 2.5rem; /* Indented for hierarchy */
    font-size: .9rem;
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.5rem;
}

/* Stats Cards with Gradients */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success) 0%, #20a094 100%) !important;
}

.bg-gradient-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #fb8500 100%) !important;
}

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

/* Tables */
.table-responsive {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table thead th {
    background-color: #f8f9fa;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #edf2f7;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    color: var(--text-main);
    border-bottom: 1px solid #edf2f7;
}

.table-hover tbody tr:hover {
    background-color: rgba(67, 97, 238, 0.02);
}

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

.shadow-soft {
    box-shadow: var(--shadow-lg) !important;
}

.rounded-xl {
    border-radius: var(--radius-lg) !important;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Mobile Fixes */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
}