:root {
    --color-bg: #f6f7f9;
    --color-surface: #ffffff;
    --color-border: #e2e5ea;
    --color-text: #1c2024;
    --color-muted: #6b7280;
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-success-bg: #e7f8ee;
    --color-success-text: #0f7a3d;
    --color-error-bg: #fdecec;
    --color-error-text: #b3261e;
    --radius: 10px;
}

* { box-sizing: border-box; }

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

.wrap {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 16px;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}
.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    padding-bottom: 14px;
    flex-wrap: wrap;
    gap: 10px;
}
.brand {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-text);
}
.brand:hover { text-decoration: none; }
.site-header nav {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.95rem;
}
.user-email { color: var(--color-muted); }
.btn-nav {
    background: var(--color-primary);
    color: #fff;
    padding: 6px 12px;
    border-radius: 999px;
}
.btn-nav:hover { background: var(--color-primary-dark); text-decoration: none; }

main.wrap { padding-top: 28px; padding-bottom: 48px; min-height: 60vh; }

.site-footer {
    border-top: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.85rem;
}
.site-footer .wrap { padding: 16px; }

.flash {
    padding: 12px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 0.95rem;
}
.flash-success { background: var(--color-success-bg); color: var(--color-success-text); }
.flash-error { background: var(--color-error-bg); color: var(--color-error-text); }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
}
.card-narrow { max-width: 440px; margin: 0 auto; }

form label { display: block; margin-top: 14px; margin-bottom: 4px; font-weight: 600; font-size: 0.9rem; }
form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="number"],
form input[type="file"],
form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    background: #fff;
    color: var(--color-text);
}
form textarea { resize: vertical; }

.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-text);
    font-size: 0.95rem;
    cursor: pointer;
}
.btn:hover { text-decoration: none; background: #f2f3f5; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-block { width: 100%; margin-top: 18px; }

.hero { text-align: center; padding: 48px 0; }
.hero h1 { font-size: 2rem; margin-bottom: 12px; }
.hero p { color: var(--color-muted); max-width: 520px; margin: 0 auto 12px; }
.hero-actions { margin: 24px 0; display: flex; gap: 12px; justify-content: center; }
.hero-hint code {
    background: #eef0f3;
    padding: 2px 6px;
    border-radius: 4px;
}

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

.item-header h1 { margin-bottom: 4px; }
.item-code { color: var(--color-muted); font-weight: 400; font-size: 1rem; }

.item-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 16px;
}
@media (max-width: 700px) {
    .item-grid { grid-template-columns: 1fr; }
}

.item-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius);
    background: #eee;
    display: block;
}
.item-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted);
}
.item-image-small { max-width: 220px; margin: 12px 0; }

.item-map, .picker-map {
    width: 100%;
    height: 220px;
    border-radius: var(--radius);
    margin-top: 12px;
    border: 1px solid var(--color-border);
}
.picker-map { height: 320px; }

.owner-box {
    background: #eef2ff;
    border-radius: var(--radius);
    padding: 14px 16px;
    margin: 16px 0;
}
.bid-amount { margin: 6px 0 0; }

.bid-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
}
.bid-input-row { display: flex; gap: 10px; margin-top: 4px; }
.bid-input-row input { flex: 1; }

.history { margin-top: 32px; }
.history-table, .admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}
.history-table th, .history-table td,
.admin-table th, .admin-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.92rem;
}
.history-table thead, .admin-table thead { background: #f2f3f5; }

.admin-table-actions { white-space: nowrap; }
.inline-form { display: inline; }
.link-button {
    display: inline;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    line-height: inherit;
    text-align: left;
    vertical-align: baseline;
    color: var(--color-primary);
    cursor: pointer;
    text-decoration: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}
.link-button::-moz-focus-inner { border: 0; padding: 0; }
.link-button:hover,
.link-button:focus { text-decoration: underline; }

.admin-item-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
}
.btn-danger {
    background: var(--color-error-bg);
    border-color: var(--color-error-bg);
    color: var(--color-error-text);
}
.btn-danger:hover { background: #f8d7d5; }

.admin-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}
.search-form {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}
.search-form input[type="text"] {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
}
.coords-row { display: flex; gap: 12px; }
.coords-row > div { flex: 1; }