/* Custom styles for RFC 9460 Adoption Tracker */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-bg: #f8f9fa;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cg fill="none" fill-rule="evenodd"%3E%3Cg fill="%23ffffff" fill-opacity="0.05"%3E%3Cpath d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');
    opacity: 0.4;
}

.hero-section > * {
    position: relative;
    z-index: 1;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: white;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Feature Items */
.feature-item {
    text-align: center;
    padding: 1.5rem;
    border-radius: 10px;
    transition: all 0.3s;
}

.feature-item:hover {
    background: var(--light-bg);
    transform: translateY(-5px);
}

.feature-item i {
    margin-bottom: 1rem;
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    height: 100%;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto;
}

/* Progress Bars */
.progress {
    background-color: #e9ecef;
    overflow: visible;
}

.progress-bar {
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Table Styling */
.table th {
    border-bottom: 2px solid var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 1px;
}

.table-hover tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 500;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
}

.card-title {
    color: var(--dark-color);
    font-weight: 600;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
}

/* Footer */
footer {
    background: linear-gradient(to right, #1a1a1a, #2d2d2d) !important;
}

/* Code Blocks */
pre {
    font-size: 0.875rem;
    line-height: 1.5;
}

code {
    font-family: 'Courier New', monospace;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
}

.alert-info {
    background: linear-gradient(45deg, #e3f2fd, #f3e5f5);
}

/* Tabs */
.nav-tabs .nav-link {
    color: #6c757d;
    border: none;
    border-bottom: 2px solid transparent;
    font-weight: 500;
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background: transparent;
    border-bottom: 2px solid var(--primary-color);
}

.nav-tabs .nav-link:hover {
    border-bottom: 2px solid #dee2e6;
}

/* Modal */
.modal-content {
    border: none;
    border-radius: 10px;
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    background: var(--light-bg);
    border-radius: 10px 10px 0 0;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-value {
        font-size: 2rem;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .table {
        font-size: 0.875rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0,0,0,.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* Section Padding */
section {
    position: relative;
}

/* Utility Classes */
.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075) !important;
}

.shadow {
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15) !important;
}

.bg-silver {
    background-color: #c0c0c0;
}