:root {
    --felt-dark: #14391f;
    --felt: #1d5230;
    --felt-light: #2a6b40;
    --cream: #f2ecd9;
    --accent: #d9a441;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: radial-gradient(circle at 50% 30%, var(--felt-light), var(--felt) 55%, var(--felt-dark));
    color: var(--cream);
}

h1, h2 {
    font-weight: 600;
}

h1:focus {
    outline: none;
}

a {
    color: var(--accent);
}

/* --- Top navigation --- */

.top-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.5rem;
    background: rgba(0, 0, 0, 0.35);
    border-bottom: 2px solid var(--accent);
}

.top-nav .brand {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--cream);
    text-decoration: none;
}

.top-nav .nav-links {
    display: flex;
    gap: 1rem;
}

.top-nav .nav-link {
    color: var(--cream);
    text-decoration: none;
    padding: 0.35rem 0.9rem;
    border-radius: 0.4rem;
}

.top-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.12);
}

.top-nav .nav-link.active {
    background: var(--accent);
    color: var(--felt-dark);
    font-weight: 600;
}

/* --- Page content --- */

.page-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
}

.placeholder {
    opacity: 0.85;
    font-style: italic;
}

/* --- Home mode cards --- */

.mode-cards {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.mode-card {
    flex: 1 1 280px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--accent);
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    color: var(--cream);
    text-decoration: none;
    transition: background 0.15s ease;
}

.mode-card:hover {
    background: rgba(0, 0, 0, 0.45);
}

.mode-card h2 {
    margin-top: 0;
    color: var(--accent);
}

/* --- Forms / framework defaults --- */

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #ff6b6b;
}

.blazor-error-boundary {
    background: #b32121;
    padding: 1rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "Ein Fehler ist aufgetreten.";
}