:root {
    --color-bg: #faf7f5;
    --color-text: #2a2222;
    --color-muted: #7a6f6f;
    --color-accent: #a3395b;
    --color-accent-dark: #7e2946;
    --color-border: #e6dedd;
    --color-card: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

header.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-card);
}

header.site-header a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
}

header.site-header nav a {
    margin-left: 1rem;
    font-weight: 400;
    color: var(--color-muted);
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

main.wide { max-width: 1000px; }

h1 { font-size: 1.6rem; margin-bottom: 0.25rem; }
h2 { font-size: 1.2rem; margin-top: 2rem; }
p.muted, .muted { color: var(--color-muted); }

.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

label { display: block; font-weight: 600; margin-bottom: 0.25rem; margin-top: 0.75rem; }

input[type="text"], input[type="email"], input[type="time"], input[type="number"], input[type="date"], select, textarea {
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
}

textarea { min-height: 6rem; }

button, .button {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 0.6rem 1.1rem;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 1rem;
    text-decoration: none;
}

button:hover, .button:hover { background: var(--color-accent-dark); }
button:disabled { background: var(--color-border); cursor: not-allowed; }
button.secondary { background: transparent; color: var(--color-accent); border: 1px solid var(--color-accent); }

table { width: 100%; border-collapse: collapse; margin-top: 0.75rem; }
th, td { text-align: left; padding: 0.5rem 0.4rem; border-bottom: 1px solid var(--color-border); font-size: 0.95rem; }
th { color: var(--color-muted); font-weight: 600; }

.class-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.class-option:last-child { border-bottom: none; }
.class-option .details { flex: 1; }
.class-option .details .name { font-weight: 600; }
.class-option .details .when { color: var(--color-muted); font-size: 0.9rem; }

.status-message { padding: 0.6rem 0.8rem; border-radius: 6px; margin-top: 0.75rem; font-size: 0.9rem; }
.status-message.error { background: #fbe4e8; color: #8a1f3a; }
.status-message.success { background: #e3f3e6; color: #1f6b34; }

.tag { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; font-size: 0.75rem; background: var(--color-border); color: var(--color-muted); }
.tag.cancelled { background: #fbe4e8; color: #8a1f3a; }