/* Design system: variables, layout, and shared components. */
:root {
    --bg: #faf7f5;
    --fg: #2b2b2b;
    --accent: #d9776f;
    --card: #ffffff;
    --muted: #8a8a8a;
    --border: #ece6e2;
}

* { box-sizing: border-box; }

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

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

.brand {
    font-weight: 700;
    text-decoration: none;
    color: var(--accent);
}

nav { display: flex; align-items: center; gap: 1rem; }
nav a { text-decoration: none; color: var(--fg); }
nav .who { color: var(--muted); font-size: .9rem; }
nav .link-btn { font-size: .9rem; }

main {
    max-width: 880px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.hero h1 { margin: 0 0 .25rem; }
.muted { color: var(--muted); }
.empty { font-style: italic; }

/* ---- Forms ---- */
.form { display: flex; flex-direction: column; gap: .5rem; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }
.form input, .form select, .form textarea {
    width: 100%;
    padding: .45rem .55rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    background: #fff;
}
.form textarea { resize: vertical; }
.form button[type="submit"] {
    align-self: flex-start;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: .5rem .9rem;
    cursor: pointer;
    font: inherit;
}
.tiny { font-size: .8rem; color: var(--muted); display: flex; align-items: center; gap: .3rem; }
.tiny input[type="date"] { padding: .3rem; }

.link-btn {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font: inherit;
    font-size: .85rem;
    padding: 0;
}

/* ---- Messages ---- */
.error { color: #b23b30; background: #fbe3e0; padding: .5rem .75rem; border-radius: 8px; margin: .75rem 0 0; }
.success { color: #2f7a43; background: #e3f1e6; padding: .5rem .75rem; border-radius: 8px; margin: .75rem 0 0; }

/* ---- Two-column grid + item cards (shared: library, accounts) ---- */
.lib-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}
.lib-col h2 { margin: 0 0 .75rem; }

.item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: .75rem .9rem;
    margin-bottom: .6rem;
}
.item.archived { opacity: .55; }
.item.editing { gap: .5rem; }
.item-head { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }
.item-head .title { font-weight: 600; margin-right: auto; }
.item-meta { display: flex; flex-wrap: wrap; gap: .75rem; font-size: .82rem; color: var(--muted); margin-top: .35rem; }
.item .desc { margin: .5rem 0 0; font-size: .9rem; }
.item .notes { margin: .35rem 0 0; font-size: .85rem; color: var(--muted); }
.item-actions { display: flex; gap: .75rem; align-items: center; margin-top: .6rem; }
.item-actions a { color: var(--accent); text-decoration: none; font-size: .85rem; }

/* ---- Badges ---- */
.badge {
    font-size: .72rem;
    padding: .12rem .5rem;
    border-radius: 999px;
    background: #f0eae6;
    color: #6b6b6b;
    text-transform: capitalize;
}
.badge.tier-low { background: #e3f1e6; color: #2f7a43; }
.badge.tier-medium { background: #fdf0d9; color: #9a6a16; }
.badge.tier-high { background: #fbe3e0; color: #b23b30; }
.badge.kind { background: #e7edf7; color: #3a5a8a; }
.badge.limited { background: #efe6f7; color: #6b3a9a; }
.badge.muted-badge { background: #ececec; color: #999; }
.cost { font-size: .85rem; color: var(--fg); font-weight: 600; }

@media (max-width: 720px) {
    .lib-grid { grid-template-columns: 1fr; }
}