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

:root {
    --primary-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-gradient-start: #f3f4f6;
    --bg-gradient-end: #e5e7eb;
    --card-bg: rgba(255, 255, 255, 0.7);
    --border-radius: 12px;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    min-height: 100vh;
    color: #1f2937;
    margin: 0;
    padding-bottom: 40px;
}

/* Glassmorphism Cards */
.panel {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.panel-heading {
    background: transparent !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 10px 15px;
}

/* Restore Blue Header for Info Panels */
.panel-info>.panel-heading {
    background-color: #d9edf7 !important;
    color: #31708f !important;
    border-color: #bce8f1;
}

.panel-title {
    font-weight: 600;
    font-size: 1rem;
}

.panel-body {
    padding: 15px;
}

/* Typography refinements */
h4 {
    color: #6b7280;
    font-size: 1rem;
    font-weight: 500;
    margin-top: 5px;
    margin-bottom: 15px;
}

/* Modern Buttons */
.btn {
    border-radius: 50px;
    padding: 2px 10px;
    font-weight: 500;
    font-size: 0.85em;
    border: none;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

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

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

.btn-default,
.btn-info {
    background-color: #e5e7eb;
    color: #374151;
}

.btn-sudo {
    border-bottom: 2px solid var(--danger-color) !important;
}

/* Navbar Modernization */
.navbar {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(10px);
    border: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.navbar-inverse .navbar-nav>li>a {
    color: #4b5563;
    font-weight: 500;
}

.navbar-inverse .navbar-brand {
    color: var(--primary-color);
    font-weight: 700;
}

/* Badge/Labels */
.label,
.badge {
    border-radius: 4px;
    font-weight: 500;
    padding: 4px 8px;
}

/* Modal */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    background: #f9fafb;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* Chart Container */
canvas {
    max-height: 250px;
}