/* Custom CSS for European Mobility Symposium */

:root {
    --primary-color: #209094;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;

    /* Override Bootstrap's primary color variables */
    --bs-primary: #209094;
    --bs-primary-rgb: 32, 144, 148;
}

/* Override Bootstrap primary color classes */
.bg-primary {
    background-color: var(--primary-color) !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

.btn-primary:hover {
    background-color: #1a787c !important;
    border-color: #1a787c !important;
}

.btn-primary:focus,
.btn-primary.focus {
    box-shadow: 0 0 0 0.2rem rgba(32, 144, 148, 0.5) !important;
}

.btn-primary:not(:disabled):not(.disabled):active,
.btn-primary:not(:disabled):not(.disabled).active,
.show > .btn-primary.dropdown-toggle {
    background-color: #1a787c !important;
    border-color: #1a787c !important;
}

.navbar-dark .navbar-brand {
    color: rgba(255, 255, 255, 0.9) !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link:focus {
    color: rgba(255, 255, 255, 1) !important;
}

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}

/* Enhanced navbar styling */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Hero section styling */
.display-4 {
    line-height: 1.2;
}

/* Card hover effects */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .15) !important;
}

/* Enhanced button styling */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Icon styling */
.fa-3x {
    font-size: 2.5em;
}

.fa-4x {
    font-size: 3.5em;
}

/* Participant cards */
.card-title {
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

/* Map container */
.embed-responsive {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    overflow: hidden;
}

.embed-responsive iframe {
    border-radius: 0.5rem;
}

/* Footer styling */
footer {
    background: linear-gradient(135deg, var(--dark-color) 0%, #343a40 100%);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2rem;
    }

    .fa-3x {
        font-size: 2em;
    }

    .fa-4x {
        font-size: 2.5em;
    }

    .card {
        margin-bottom: 1rem;
    }
}

/* Print styles */
@media print {
    .navbar,
    footer {
        display: none !important;
    }

    .card {
        border: 1px solid #dee2e6 !important;
        box-shadow: none !important;
    }

    a[href]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
}

/* Accessibility improvements */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

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

/* Custom list styling */
.list-unstyled li {
    padding: 0.25rem 0;
}

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

section:before {
    content: '';
    display: block;
    height: 70px;
    margin-top: -70px;
    visibility: hidden;
}

/* Custom scrollbar (webkit browsers) */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #209094;
}

#sponsors .sponsor-logo {
  max-height: 150px;      /* pick the height you want */
  width: auto;            /* preserve aspect ratio */
  object-fit: contain;    /* prevent cropping or distortion */
  display: inline-block;  /* ensure the max-height applies correctly */
}

/* (Optional) Vertically center smaller logos within their grid cell */
#sponsors .col.text-center {
  display: flex;
  align-items: center;
  justify-content: center;
}