/* ===== Setting Page Layout ===== */
.setting-page { max-width: 520px; margin: 0 auto; padding: 16px; }
@media (min-width: 768px) {
    .setting-page { max-width: 60vw; padding-top: 48px; }
}
.setting-main { padding-bottom: 40px; }

/* ===== Section ===== */
.setting-section { margin-bottom: 28px; }
.setting-section-title {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
    padding: 0 4px;
}

/* ===== Trip List ===== */
.setting-trip-list { display: flex; flex-direction: column; gap: 8px; }
.setting-trip-list .trip-btn {
    transition: border-color 0.15s;
}
.setting-trip-list .trip-btn.active {
    border-color: var(--accent);
}

/* ===== Color Mode Grid ===== */
.color-mode-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.color-mode-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 10px 8px;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    background: var(--gray-light);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.color-mode-card:hover { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.color-mode-card.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }

/* ===== Color Mode Preview ===== */
.color-mode-preview {
    width: 80px;
    height: 54px;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
}
.cmp-top { flex: 1; }
.cmp-bottom {
    height: 20px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 6px;
}
.cmp-input {
    flex: 1;
    height: 10px;
    border-radius: 5px;
}
.cmp-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

/* Light theme preview */
.color-mode-light .cmp-top { background: #F5F5F5; }
.color-mode-light .cmp-bottom { background: #FFFFFF; }
.color-mode-light .cmp-input { background: #E0E0E0; }

/* Dark theme preview */
.color-mode-dark .cmp-top { background: #1A1816; }
.color-mode-dark .cmp-bottom { background: #292624; }
.color-mode-dark .cmp-input { background: #3D3A37; }

/* Auto theme preview — split diagonally using gradient */
.color-mode-auto .cmp-top {
    background: linear-gradient(135deg, #F5F5F5 50%, #1A1816 50%);
}
.color-mode-auto .cmp-bottom {
    background: linear-gradient(135deg, #FFFFFF 50%, #292624 50%);
}
.color-mode-auto .cmp-input {
    background: linear-gradient(135deg, #E0E0E0 50%, #3D3A37 50%);
}

/* ===== Color Mode Labels ===== */
.color-mode-label {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--text);
}
.color-mode-desc {
    font-size: var(--fs-sm);
    color: var(--gray);
}

/* ===== Sticky-nav: title bar ===== */
.setting-main .sticky-nav { background: var(--card-bg); }

/* ===== Dark Mode ===== */
body.dark .color-mode-card { background: var(--card-bg); }
body.dark .color-mode-card:hover { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }