/* ═══════════════════════════════════════════
   base.css — 共用設計系統
   ═══════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
    --bg: #fff;
    --surface: #f8f6f3;
    --surface2: #f0ece6;
    --border: #d9d0c4;
    --primary: #b08d57;
    --primary-dark: #8c6d3f;
    --primary-light: #d4b87c;
    --text: #2c2c2c;
    --text-dim: #7a7066;
    --heart: #c0392b;
    --heart-empty: #d9d0c4;
    --green: #27ae60;
    --yellow: #d4a017;
    --red: #c0392b;
    --blue: #3498db;
    --orange: #f39c12;
    --radius: 12px;
}

/* ── Reset ── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── Header ── */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 32px;
    border-bottom: 1px solid var(--border);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo img {
    height: 36px;
}

.header h1 {
    font-size: 18px;
    color: var(--primary-dark);
}

.header-nav {
    display: flex;
    gap: 16px;
    align-items: center;
}

.header-nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 14px;
}

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

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-right img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--primary);
}

/* ── Container ── */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 20px;
}

/* ── Section card ── */
.section {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text);
}

@media(min-width:768px) {
    .section-title {
        font-size: 20px;
    }
}

/* ── Footer ── */
.footer {
    text-align: center;
    padding: 32px 20px;
    color: var(--text-dim);
    font-size: 12px;
    border-top: 1px solid var(--border);
    margin-top: 40px;
    line-height: 2;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ── Navigation buttons ── */
.btn-nav {
    padding: 6px 16px;
    border: 1px solid var(--primary);
    border-radius: 6px;
    color: var(--primary);
    background: none;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
}

.btn-nav:hover {
    background: var(--primary);
    color: #fff;
}

.back-btn {
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-dim);
    background: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    text-decoration: none;
}

.back-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ── View system ── */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* ── Loading ── */
.loading {
    text-align: center;
    padding: 40px;
    display: none;
}

.loading.active {
    display: block;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 12px;
    animation: spin .8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-msg {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-dim);
}

.loading-msg h2 {
    margin-bottom: 8px;
}

/* ── Error ── */
.error-msg {
    text-align: center;
    padding: 30px;
    color: var(--red);
    font-size: 16px;
    display: none;
}

/* ── Banner ── */
.banner {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    display: block;
}