:root {
    --color-bg: #fbf7f4;
    --color-surface: #ffffff;
    --color-text: #2f2a2e;
    --color-muted: #7a6f75;
    --color-primary: #a8577e;
    --color-primary-dark: #8a4267;
    --color-border: #e8dfe2;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

a {
    color: var(--color-primary-dark);
}

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header .brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary-dark);
    text-decoration: none;
}

.site-nav {
    display: flex;
    gap: 1.25rem;
    align-items: center;
}

.site-nav a {
    text-decoration: none;
    color: var(--color-text);
}

.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 1.5rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.card h3 {
    margin-top: 0;
}

.btn {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

form p {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

input, textarea, select {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
}

.muted {
    color: var(--color-muted);
    font-size: 0.9rem;
}

.messages {
    list-style: none;
    padding: 0;
}

.messages li {
    background: #fff3d6;
    border: 1px solid #e8c97a;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.tag {
    display: inline-block;
    background: #f2e4ea;
    color: var(--color-primary-dark);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.8rem;
    margin-right: 0.25rem;
}

.badge-expert {
    background: #dff0e2;
    color: #2f6d3d;
}