:root {
    --m16-bg: #0d1117;
    --m16-card: #161b22;
    --m16-border: #30363d;
    --m16-accent: #58a6ff;
    --m16-green: #3fb950;
    --m16-text: #e6edf3;
    --m16-muted: #8b949e;
}

body {
    background-color: var(--m16-bg);
    color: var(--m16-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

main {
    flex: 1;
}

.navbar {
    background-color: var(--m16-card) !important;
    border-bottom: 1px solid var(--m16-border) !important;
}

.navbar-brand {
    font-size: 1.4rem;
    color: var(--m16-accent) !important;
    letter-spacing: 0.5px;
}

.navbar-brand:hover {
    color: #79c0ff !important;
}

/* App cards */
.app-card {
    background-color: var(--m16-card);
    border: 1px solid var(--m16-border);
    border-radius: 12px;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.app-card:hover {
    transform: translateY(-4px);
    border-color: var(--m16-accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.card-img-top-wrapper {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.05), rgba(63, 185, 80, 0.05));
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-icon {
    width: 96px;
    height: 96px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.app-icon-placeholder {
    width: 96px;
    height: 96px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--m16-accent), #1f6feb);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    margin: 0 auto;
}

.app-icon-placeholder-lg {
    width: 180px;
    height: 180px;
    font-size: 4rem;
    border-radius: 32px;
    margin: 0 auto;
}

/* Detail page */
.app-detail-icon-wrapper {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.08), rgba(63, 185, 80, 0.08));
    border-radius: 16px;
    border: 1px solid var(--m16-border);
}

.app-detail-icon {
    width: 180px;
    height: 180px;
    border-radius: 32px;
    object-fit: cover;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Admin dashboard */
.admin-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.admin-icon-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--m16-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--m16-muted);
}

/* Cards and forms */
.card {
    border-radius: 12px;
}

.form-control,
.form-select {
    background-color: var(--m16-bg);
    border-color: var(--m16-border);
    color: var(--m16-text);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--m16-bg);
    border-color: var(--m16-accent);
    color: var(--m16-text);
    box-shadow: 0 0 0 0.2rem rgba(88, 166, 255, 0.15);
}

.input-group-text {
    background-color: var(--m16-card);
    border-color: var(--m16-border);
    color: var(--m16-muted);
}

.table-dark {
    --bs-table-bg: var(--m16-card);
    --bs-table-border-color: var(--m16-border);
}

.table-hover > tbody > tr:hover {
    --bs-table-hover-bg: rgba(88, 166, 255, 0.06);
}

/* Buttons */
.btn-success {
    background-color: var(--m16-green);
    border-color: var(--m16-green);
}

.btn-success:hover {
    background-color: #2ea043;
    border-color: #2ea043;
}

/* Badge tweaks */
.badge {
    font-weight: 500;
}

/* Footer */
footer {
    border-color: var(--m16-border) !important;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--m16-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--m16-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--m16-muted);
}

/* Alert styling */
.alert {
    border-radius: 8px;
}

/* Responsive adjustments */
@media (max-width: 576px) {
    .app-icon {
        width: 72px;
        height: 72px;
    }
    
    .app-detail-icon {
        width: 128px;
        height: 128px;
    }
    
    .app-icon-placeholder-lg {
        width: 128px;
        height: 128px;
        font-size: 3rem;
    }
}