:root {
    --color-bg: #faf7f2;
    --color-surface: #ffffff;
    --color-text: #2b2420;
    --color-muted: #766a5e;
    --color-border: #e6ddd2;
    --color-primary: #c9752f;
    --color-primary-dark: #a85f22;
    --color-mine: #fff3e0;
    --radius: 10px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1c1815;
        --color-surface: #262019;
        --color-text: #f1e9df;
        --color-muted: #b3a495;
        --color-border: #3a322a;
        --color-primary: #e08a3e;
        --color-primary-dark: #f0a35f;
        --color-mine: #3a2b17;
    }
}

* { box-sizing: border-box; }

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

.site-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    gap: 0.5rem;
}

.brand {
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--color-text);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.9rem;
}

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

.site-nav a:hover { color: var(--color-primary); }

.site-main {
    max-width: 960px;
    margin: 0 auto;
    padding: 1rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
    display: block;
    color: inherit;
    text-decoration: none;
}

.card-narrow { max-width: 380px; margin: 2rem auto; }

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

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn:hover { background: var(--color-primary-dark); }
.btn-primary { background: var(--color-primary); }
.btn-small { padding: 0.3rem 0.6rem; font-size: 0.85rem; }
.btn-link {
    background: none; border: none; color: var(--color-primary);
    text-decoration: underline; cursor: pointer; padding: 0; font-size: 0.85rem;
}

input[type="text"], input[type="tel"], input[type="url"], input[type="email"],
input[type="date"], input[type="password"], input[type="file"], textarea, select {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-surface);
    color: var(--color-text);
    width: 100%;
    max-width: 100%;
    margin-bottom: 0.5rem;
}

form p { margin: 0.4rem 0; }

.inline-form { display: inline; margin: 0; }

.field-error { color: #c0392b; font-size: 0.85rem; margin: 0 0 0.5rem; }

.messages { list-style: none; padding: 0; }
.messages .message {
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    background: var(--color-mine);
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    font-size: 0.9rem;
}

.data-table th, .data-table td {
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem;
    text-align: left;
}

.dashboard-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.calendar-header { margin-bottom: 1rem; }

.badge {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    border-radius: 999px;
    padding: 0.1rem 0.6rem;
    font-size: 0.75rem;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}
.photo-grid img { width: 100%; border-radius: var(--radius); }

/* Calendar: month-grid on desktop, scrollable day-list on mobile (SPEC.md section 6). */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

@media (max-width: 700px) {
    .calendar-grid {
        grid-template-columns: 1fr;
        max-height: 70vh;
        overflow-y: auto;
    }
    .site-nav { font-size: 0.85rem; }
}

.day-cell {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.day-cell-mine { border-color: var(--color-primary); }

.day-date { font-weight: 600; font-size: 0.85rem; }

.day-claims { list-style: none; margin: 0; padding: 0; font-size: 0.85rem; }
.claim { display: flex; gap: 0.35rem; align-items: baseline; flex-wrap: wrap; }
.claim-mine .claim-name { color: var(--color-primary-dark); }
.claim-note { color: var(--color-muted); font-style: italic; }

.day-empty { margin: 0; }

.claim-form { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.claim-form input { flex: 1; min-width: 0; margin-bottom: 0; }

.body-tools {
    display: flex;
    gap: 0.5rem;
    margin: -0.25rem 0 1rem;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 100;
}

.modal-overlay[hidden] { display: none; }

.modal-box {
    position: relative;
    max-width: 700px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    margin: 0;
}

.modal-close {
    position: absolute;
    top: 0.5rem;
    right: 0.75rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: var(--color-muted);
}

.modal-close:hover { color: var(--color-text); }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}