:root {
    --bg: #f5f5f2;
    --surface: #ffffff;
    --border: #ddd8ce;
    --text: #26241f;
    --text-muted: #6b675c;
    --accent: #8a3b2e;
    --accent-light: #f1e2dd;
    --good: #2f6f4f;
    --bad: #a8352a;
    --neutral: #8a7d3f;
    --radius: 8px;
}

* { box-sizing: border-box; }

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

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

.site-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.site-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.site-logo { font-weight: 700; text-decoration: none; color: var(--text); font-size: 1.05rem; }
.site-nav { display: flex; gap: 1rem; flex: 1; }
.site-nav a { text-decoration: none; color: var(--text-muted); padding: 0.4rem 0; border-bottom: 2px solid transparent; }
.site-nav a.active, .site-nav a:hover { color: var(--text); border-bottom-color: var(--accent); }
.logout-form button {
    background: none; border: 1px solid var(--border); border-radius: var(--radius);
    padding: 0.35rem 0.8rem; cursor: pointer; color: var(--text-muted);
}

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

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-form {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2rem; width: 320px; display: flex; flex-direction: column; gap: 0.75rem;
}
.login-form h1 { margin: 0 0 0.5rem; font-size: 1.2rem; }
.login-form input { padding: 0.5rem; border: 1px solid var(--border); border-radius: var(--radius); }
.login-form button, .btn {
    background: var(--accent); color: #fff; border: none; border-radius: var(--radius);
    padding: 0.5rem 1rem; cursor: pointer; font-size: 0.95rem;
}
.login-form .error { color: var(--bad); font-size: 0.9rem; margin: 0; }

/* Store tabs */
.store-tabs, .status-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.store-tabs button, .status-tabs button {
    background: var(--surface); border: 1px solid var(--border); border-radius: 999px;
    padding: 0.4rem 1rem; cursor: pointer; font-size: 0.9rem; color: var(--text-muted);
}
.store-tabs button.active, .status-tabs button.active {
    background: var(--accent-light); border-color: var(--accent); color: var(--accent); font-weight: 600;
}
.status-tabs button .count { color: var(--text-muted); margin-left: 0.3rem; }

/* Capacity banner */
.capacity-banner {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1rem 1.25rem; margin-bottom: 1.25rem;
}
.capacity-banner .bar {
    height: 10px; background: var(--bg); border-radius: 999px; overflow: hidden; margin-top: 0.5rem;
}
.capacity-banner .bar-fill { height: 100%; background: var(--good); }
.capacity-banner .bar-fill.over { background: var(--bad); }
.capacity-banner .meta { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.35rem; }

/* Recommendation cards */
.rec-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    margin-bottom: 0.75rem; overflow: hidden;
}
.rec-card summary {
    list-style: none; cursor: pointer; padding: 0.9rem 1.1rem; display: flex; align-items: center;
    gap: 0.75rem; flex-wrap: wrap;
}
.rec-card summary::-webkit-details-marker { display: none; }
.rec-card .title { font-weight: 600; flex: 1; min-width: 200px; }
.rec-card .badge {
    font-size: 0.75rem; padding: 0.15rem 0.55rem; border-radius: 999px; white-space: nowrap;
    background: var(--bg); color: var(--text-muted); border: 1px solid var(--border);
}
.rec-card .badge.confidence-high { background: #e4f0e8; color: var(--good); border-color: var(--good); }
.rec-card .badge.confidence-low { background: #f6ece8; color: var(--bad); border-color: var(--bad); }
.rec-card .units { font-weight: 700; color: var(--accent); }
.rec-card .body { padding: 0 1.1rem 1.1rem; border-top: 1px solid var(--border); }
.rec-card .body dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.4rem 1rem; margin: 0.75rem 0; }
.rec-card .body dt { color: var(--text-muted); font-size: 0.85rem; }
.rec-card .body dd { margin: 0; }

.feedback-widget, .measurement-widget { margin-top: 1rem; padding-top: 1rem; border-top: 1px dashed var(--border); }
.feedback-widget button, .status-select, .reject-btn {
    border: 1px solid var(--border); background: var(--surface); border-radius: var(--radius);
    padding: 0.3rem 0.7rem; cursor: pointer; margin-right: 0.3rem;
}
.feedback-widget button.selected.good { background: #e4f0e8; border-color: var(--good); }
.feedback-widget button.selected.bad { background: #f6ece8; border-color: var(--bad); }
.feedback-widget textarea, .measurement-widget textarea {
    width: 100%; margin-top: 0.5rem; border: 1px solid var(--border); border-radius: var(--radius);
    padding: 0.5rem; font-family: inherit;
}

/* Plain forms/tables for factory-output & oos-subscribers pages */
table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; }
table th, table td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); }
table th { color: var(--text-muted); font-weight: 600; font-size: 0.85rem; }
.simple-form { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: end; margin-bottom: 1rem; }
.simple-form label { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--text-muted); gap: 0.25rem; }
.simple-form input { padding: 0.4rem 0.5rem; border: 1px solid var(--border); border-radius: var(--radius); }

.empty-state { color: var(--text-muted); text-align: center; padding: 3rem 1rem; }

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1b1a17;
        --surface: #262420;
        --border: #3a3730;
        --text: #ece8e0;
        --text-muted: #a39d8e;
        --accent: #d98a6f;
        --accent-light: #3a2620;
        --good: #6fbf94;
        --bad: #e08277;
    }
    .rec-card .badge.confidence-high { background: #1f3327; }
    .rec-card .badge.confidence-low { background: #3a231e; }
    .feedback-widget button.selected.good { background: #1f3327; }
    .feedback-widget button.selected.bad { background: #3a231e; }
}