/* Deliberately plain: readable text, clear structure, nothing fancy. */

:root {
    --ink: #1c2430;
    --muted: #5b6573;
    --line: #d9dde3;
    --accent: #1f4e79;
    --error: #a12a2a;
    --ok-bg: #e8f1ea;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: var(--ink);
    background: #ffffff;
}

.site-header, main, .site-footer {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.site-name {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--ink);
    text-decoration: none;
}

.admin-nav { display: flex; gap: 16px; align-items: center; }
.admin-nav form { margin: 0; }

main { padding-top: 24px; padding-bottom: 48px; }

h1, h2, h3 { line-height: 1.25; }
h1 { font-size: 1.9rem; margin: 0.3em 0 0.6em; }
h2 { font-size: 1.35rem; margin-top: 1.8em; }
h3 { font-size: 1.1rem; margin-bottom: 0.2em; }

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

.breadcrumb { font-size: 0.9rem; color: var(--muted); margin: 0; }

.item-list { list-style: none; padding: 0; }
.item-list li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.item-list li p { margin: 4px 0 0; color: var(--muted); }

.concept { max-width: 68ch; }

.case {
    border-left: 3px solid var(--accent);
    padding: 2px 0 2px 16px;
    margin: 20px 0;
}
.case-details { color: var(--muted); font-size: 0.92rem; margin-top: 0; }

.message { background: var(--ok-bg); padding: 10px 14px; border-radius: 4px; }
.error { color: var(--error); font-weight: 600; }

.form { display: grid; gap: 16px; max-width: 560px; }
.form label { display: grid; gap: 6px; font-weight: 600; }
.form small { font-weight: 400; color: var(--muted); }

input, select, textarea {
    font: inherit;
    padding: 8px 10px;
    border: 1px solid #b8bfc9;
    border-radius: 4px;
    width: 100%;
}

button, .button {
    font: inherit;
    display: inline-block;
    padding: 9px 18px;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
    justify-self: start;
}

.link-button {
    background: none;
    color: var(--accent);
    padding: 0;
    text-decoration: underline;
}

.actions { display: flex; flex-wrap: wrap; gap: 10px; }

:focus-visible { outline: 3px solid #f0b429; outline-offset: 2px; }

.site-footer {
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.9rem;
    padding-top: 12px;
    padding-bottom: 24px;
}