/* ============================================================
   線上畫展網站 樣式表
   ============================================================ */

:root {
    --color-bg: #faf8f5;
    --color-surface: #ffffff;
    --color-text: #2b2622;
    --color-text-muted: #6b6259;
    --color-border: #e6e0d8;
    --color-primary: #8a5a44;
    --color-primary-dark: #6e4636;
    --color-accent: #c99a6c;
    --color-success-bg: #eaf6ec;
    --color-success-text: #2c6b34;
    --color-error-bg: #fbeaea;
    --color-error-text: #a3312a;
    --color-info-bg: #f0f2fb;
    --color-info-text: #3c4a9c;
    --radius: 10px;
    --shadow: 0 2px 10px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
}

img { max-width: 100%; display: block; }

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 24px 0;
}
.header-inner { display: flex; flex-direction: column; gap: 4px; }
.site-logo { font-size: 1.6rem; font-weight: 700; color: var(--color-text); }
.site-tagline { margin: 0; color: var(--color-text-muted); font-size: 0.95rem; }

/* Hero */
.hero {
    text-align: center;
    padding: 48px 20px;
}
.hero h1 { font-size: 2rem; margin-bottom: 8px; }
.hero p { color: var(--color-text-muted); margin-bottom: 24px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary { background: var(--color-surface); color: var(--color-primary); border: 1px solid var(--color-primary); }

/* Category filter */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 24px 0;
}
.category-filter a {
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}
.category-filter a.active,
.category-filter a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* Gallery grid */
.gallery { padding-bottom: 60px; }
.artwork-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}
.artwork-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    color: var(--color-text);
    transition: transform 0.15s ease;
}
.artwork-card:hover { transform: translateY(-3px); }
.artwork-thumb { position: relative; aspect-ratio: 4/5; overflow: hidden; background: #eee; }
.artwork-thumb img { width: 100%; height: 100%; object-fit: cover; }
.artwork-info { padding: 14px 16px; }
.artwork-info h3 { margin: 0 0 4px; font-size: 1.05rem; }
.artwork-category { margin: 0 0 6px; color: var(--color-text-muted); font-size: 0.85rem; }
.artwork-price { margin: 0; font-weight: 700; color: var(--color-primary); }

.badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}
.badge-sold { background: rgba(163,49,42,0.9); color: #fff; }

/* Artwork detail */
.artwork-detail { padding: 40px 20px 60px; }
.artwork-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.artwork-detail-image { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.artwork-detail-info h1 { margin-top: 0; }
.artwork-meta { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 16px 0; }
.artwork-meta dt { color: var(--color-text-muted); }
.artwork-meta dd { margin: 0; }
.artwork-description { white-space: pre-line; }

/* Forms */
.inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 480px;
    margin-top: 20px;
}
.inquiry-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}
.inquiry-form input,
.inquiry-form textarea,
.inquiry-form select {
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-surface);
}
.inquiry-form textarea { resize: vertical; }
.custom-order-page { padding: 40px 20px 60px; max-width: 700px; }

/* Alerts */
.alert { padding: 14px 18px; border-radius: 8px; margin: 16px 0; font-size: 0.95rem; }
.alert ul { margin: 0; padding-left: 20px; }
.alert-success { background: var(--color-success-bg); color: var(--color-success-text); }
.alert-error { background: var(--color-error-bg); color: var(--color-error-text); }
.alert-info { background: var(--color-info-bg); color: var(--color-info-text); }

.empty-state { color: var(--color-text-muted); text-align: center; padding: 60px 20px; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 24px 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    text-align: center;
}

/* ---------------- Admin ---------------- */
.admin-nav {
    background: #2b2622;
}
.admin-nav-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 20px;
    flex-wrap: wrap;
}
.admin-nav a { color: #e6e0d8; font-size: 0.9rem; }
.admin-nav a.active, .admin-nav a:hover { color: #fff; font-weight: 700; }
.admin-nav-spacer { flex: 1; }
.admin-nav-user { color: #a89f92; font-size: 0.85rem; }

.admin-page { padding: 32px 20px 60px; }
.admin-page-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.admin-form { max-width: 640px; }
.admin-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.admin-form small { color: var(--color-text-muted); font-weight: 400; }
.form-checkboxes { display: flex; gap: 20px; flex-wrap: wrap; }
.checkbox-label { flex-direction: row !important; align-items: center; gap: 8px !important; }
.current-image { max-width: 240px; border-radius: 8px; overflow: hidden; margin-bottom: 6px; box-shadow: var(--shadow); }

.admin-login { padding: 60px 20px; max-width: 420px; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-top: 16px;
}
.admin-table th, .admin-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    vertical-align: middle;
}
.admin-thumb { width: 56px; height: 56px; object-fit: cover; border-radius: 6px; }
.admin-actions { display: flex; gap: 12px; }
.admin-actions form { display: inline; margin: 0; }
.link-danger { background: none; border: none; color: var(--color-error-text); cursor: pointer; font-size: 0.9rem; padding: 0; text-decoration: underline; }

.tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 700; }
.tag-green { background: var(--color-success-bg); color: var(--color-success-text); }
.tag-red { background: var(--color-error-bg); color: var(--color-error-text); }
.tag-gray { background: #eee; color: #666; }

.inquiry-list { display: flex; flex-direction: column; gap: 16px; margin-top: 16px; }
.inquiry-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 20px;
}
.inquiry-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}
.inquiry-message { white-space: pre-line; background: var(--color-bg); border-radius: 8px; padding: 12px 14px; }
.inquiry-status-form select {
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--color-border);
}

/* Responsive */
@media (max-width: 720px) {
    .artwork-detail-grid { grid-template-columns: 1fr; }
    .admin-form .form-row { grid-template-columns: 1fr; }
    .admin-table { display: block; overflow-x: auto; white-space: nowrap; }
}