/* ============================================================
   LAYOUT
   Surfaces (cartes, conteneurs) et navigation principale
   ============================================================ */


/* ============================================================
   SURFACES
   ============================================================ */

.surface {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

html.dark .surface {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.surface-card {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.surface-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

html.dark .surface-card {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

html.dark .surface-card:hover {
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.5);
}

.surface-card-error {
    border-color: var(--color-danger);
    background-color: color-mix(in srgb, var(--color-danger) 5%, var(--color-surface));
}

html.dark .surface-card-error {
    background-color: color-mix(in srgb, var(--color-danger) 8%, var(--color-surface));
}

.surface-accent {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.surface-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

html.dark .surface-accent {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

html.dark .surface-accent:hover {
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.5);
}

.surface-accent.accent-primary { border-left-color: var(--color-primary); }
.surface-accent.accent-secondary { border-left-color: var(--color-secondary); }
.surface-accent.accent-warm { border-left-color: var(--color-accent); }

.surface-nested {
    background-color: color-mix(in srgb, var(--color-primary) 8%, transparent);
    color: var(--color-text);
    border-radius: 8px;
}

html.dark .surface-nested {
    background-color: color-mix(in srgb, var(--color-primary) 15%, transparent);
}


/* ============================================================
   NAVIGATION
   ============================================================ */

.nav-link {
    display: block;
    padding: 0.5rem 0.875rem;
    border-radius: 6px;
    color: var(--color-header-text);
    font-weight: 500;
    text-align: left;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
    background-color: var(--color-header-hover);
    color: var(--color-header-text);
}

.nav-link.is-active {
    background-color: color-mix(in srgb, var(--color-accent) 15%, transparent);
    color: var(--color-accent);
    font-weight: 600;
}

html.dark .nav-link.is-active {
    background-color: color-mix(in srgb, var(--color-accent) 25%, transparent);
}

@media (min-width: 640px) {
    .nav-link {
        text-align: center;
    }
}