/* MedRech 2.0 - Modern Design CSS */

:root {
    /* Modern Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-color: #4facfe;
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-color: #00d4aa;
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --danger-gradient: linear-gradient(135deg, #fc6076 0%, #ff9a44 100%);
    --info-gradient: linear-gradient(135deg, #30cfd0 0%, #330867 100%);

    /* Neutral Colors */
    --bg-light: #f8f9fa;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --text-dark: #2d3748;
    --text-light: #718096;
    --border-color: #e2e8f0;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);

    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Body & Layout */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-dark);
    line-height: 1.6;
}

/* Modern Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: var(--transition-smooth);
    position: relative;
    z-index: 1030;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition-fast);
}

.navbar-brand:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.navbar-brand i {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transform: translateY(-2px);
}

.nav-link.active {
    background: var(--primary-gradient);
    color: white !important;
    box-shadow: var(--shadow-md);
}

/* Modern Cards */
.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    background: white;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.card-body {
    padding: 1.5rem;
}

/* Gradient Cards */
.card.text-white.bg-primary {
    background: var(--primary-gradient) !important;
    border: none;
}

.card.text-white.bg-success {
    background: var(--success-gradient) !important;
    border: none;
}

.card.text-white.bg-warning {
    background: var(--warning-gradient) !important;
    border: none;
}

.card.text-white.bg-info {
    background: var(--info-gradient) !important;
    border: none;
}

.card.text-white.bg-danger {
    background: var(--danger-gradient) !important;
    border: none;
}

/* Modern Buttons */
.btn {
    border-radius: 10px;
    padding: 0.625rem 1.5rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    border: none;
    box-shadow: var(--shadow-sm);
}

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

.btn-primary {
    background: var(--primary-gradient);
    border: none;
}

.btn-success {
    background: var(--success-gradient);
    border: none;
}

.btn-info {
    background: var(--info-gradient);
    border: none;
}

.btn-warning {
    background: var(--warning-gradient);
    border: none;
    color: white;
}

.btn-danger {
    background: var(--danger-gradient);
    border: none;
}

/* Modern Badges */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.85rem;
}

/* Modern Tables */
.table {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead th {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: var(--text-dark);
    padding: 1rem;
}

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

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
    transform: scale(1.01);
}

.table tbody td {
    padding: 1rem;
    border-color: var(--border-color);
    vertical-align: middle;
}

/* Modern Alerts */
.alert {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1) 0%, rgba(0, 242, 254, 0.1) 100%);
    color: var(--success-color);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(250, 112, 154, 0.1) 0%, rgba(254, 225, 64, 0.1) 100%);
    color: #d97706;
}

.alert-danger {
    background: linear-gradient(135deg, rgba(252, 96, 118, 0.1) 0%, rgba(255, 154, 68, 0.1) 100%);
    color: #dc2626;
}

/* Form Elements */
.form-control, .form-select {
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Dashboard Specific */
.dashboard-stat {
    text-align: center;
    padding: 1.5rem;
}

.dashboard-stat h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0.5rem 0;
}

.dashboard-stat p {
    margin: 0;
    opacity: 0.9;
}

/* Footer */
footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

/* Login Page Specific */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gradient);
    padding: 2rem;
}

.login-card {
    max-width: 450px;
    width: 100%;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: slideIn 0.5s ease;
}

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

.login-header {
    background: var(--primary-gradient);
    color: white;
    padding: 2.5rem 2rem;
    text-align: center;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    margin-bottom: 0.5rem;
}

.login-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 1.1rem;
}

.login-header i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.login-body {
    padding: 2.5rem 2rem;
}

/* Dropdown Menu */
.dropdown-menu {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    z-index: 1040 !important;
}

.nav-item.dropdown {
    position: relative;
    z-index: 1031;
}

.dropdown-item {
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

/* Pagination */
.pagination .page-link {
    border: none;
    border-radius: 8px;
    margin: 0 0.25rem;
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.pagination .page-link:hover {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: var(--primary-gradient);
    border: none;
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }

    .dashboard-stat h2 {
        font-size: 2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}