/* Mobile-first CSS with minimal colors */
:root {
    --primary-color: #212529;
    --secondary-color: #6c757d;
    --light-gray: #f8f9fa;
    --border-color: #dee2e6;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-gray);
}

/* Cards and containers */
.card {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    border-radius: 0.5rem;
}

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

/* Image upload area */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s ease;
    background-color: white;
}

.upload-area:hover {
    border-color: var(--secondary-color);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: var(--light-gray);
}

/* Image preview */
.image-preview {
    max-width: 100%;
    height: auto;
    border-radius: 0.375rem;
    box-shadow: var(--shadow);
}

/* Patch grid */
.patch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.patch-item {
    aspect-ratio: 1;
    border-radius: 0.375rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
}

.patch-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.patch-item {
    position: relative;
}

.patch-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.patch-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.patch-item:hover .patch-overlay {
    opacity: 1;
}

.patch-overlay-text {
    text-align: center;
    color: white;
    font-size: 0.75rem;
}

/* Existing group items in modal */
.existing-group-item {
    transition: background-color 0.2s ease;
}

.existing-group-item:hover {
    background-color: var(--light-gray);
    border-color: var(--primary-color) !important;
}

/* Match items */
.match-item {
    border: 2px solid transparent;
    border-radius: 0.5rem;
    transition: border-color 0.3s ease;
}

.match-item:hover {
    border-color: var(--primary-color);
}

.match-item.selected {
    border-color: var(--primary-color);
    background-color: rgba(33, 37, 41, 0.05);
}

/* Stats cards */
.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Camera controls */
.camera-container {
    position: relative;
    border-radius: 0.5rem;
    overflow: hidden;
    background: black;
}

.camera-controls {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.capture-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 3px solid white;
    background: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
    transition: transform 0.2s ease;
}

.capture-btn:hover {
    transform: scale(1.1);
}

/* Responsive adjustments */
@media (min-width: 576px) {
    .patch-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (min-width: 768px) {
    .patch-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.5rem;
    }
}

/* Utility classes */
.min-vh-100 {
    min-height: 100vh;
}

.cursor-pointer {
    cursor: pointer;
}

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

/* Loading states */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Favorite star styling */
.btn-link {
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
}

.btn-link:hover {
    text-decoration: none;
    transform: scale(1.1);
}

.btn-link:focus {
    box-shadow: none;
}