/* ================================================
   活動詳情頁 — Warm Editorial
   ================================================ */

/* ── 返回列 ──────────────────────────────────── */
.detail-back-bar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    padding: 0.9rem 0;
}

.detail-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.detail-back-link:hover { color: var(--primary-color); }

.detail-back-link i { font-size: 0.75rem; }

/* ── Hero ────────────────────────────────────── */
.detail-hero {
    position: relative;
    height: 420px;
    overflow: hidden;
    background: var(--bg-muted);
}

.detail-hero__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.detail-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(44,31,20,0.72) 0%, rgba(44,31,20,0.2) 50%, transparent 100%);
}

.detail-hero__content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2.5rem;
}

.detail-hero__category {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.85);
    border: 1px solid rgba(255,255,255,0.4);
    padding: 0.25rem 0.75rem;
    margin-bottom: 0.75rem;
}

.detail-hero__title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 400;
    color: #fff;
    line-height: 1.15;
    margin: 0;
    text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

/* ── 無圖 placeholder ────────────────────────── */
.detail-hero--no-image {
    display: flex;
    align-items: flex-end;
    background: linear-gradient(135deg, var(--bg-muted) 0%, var(--bg-light) 100%);
    border-bottom: 1px solid var(--border-light);
}

.detail-hero--no-image .detail-hero__category {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.detail-hero--no-image .detail-hero__title {
    color: var(--text-primary);
    text-shadow: none;
}

/* ── 主體佈局 ────────────────────────────────── */
.detail-body {
    background: var(--bg-white);
    padding: 3rem 0 5rem;
}

/* ── 主要內容 ────────────────────────────────── */
.detail-main { }

.detail-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-light);
}

.detail-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.detail-section__label {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.75rem;
}

.detail-section__title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text-primary);
    margin: 0 0 1rem;
}

.detail-desc {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.85;
    margin: 0;
    white-space: pre-line;
}

/* ── 資訊列表 ────────────────────────────────── */
.detail-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.detail-info-item__icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 0.85rem;
}

.detail-info-item__content { flex: 1; }

.detail-info-item__key {
    display: block;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}

.detail-info-item__value {
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ── Sidebar 報名卡 ──────────────────────────── */
.detail-sidebar {
    position: sticky;
    top: 1.5rem;
}

.detail-signup-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
}

.detail-signup-card__header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-light);
}

.detail-signup-card__status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    margin-bottom: 0.75rem;
}

.detail-signup-card__status--open {
    color: var(--success-color);
    background: rgba(61, 122, 69, 0.08);
    border: 1px solid rgba(61, 122, 69, 0.25);
}

.detail-signup-card__status--full {
    color: var(--warning-color);
    background: rgba(196, 124, 42, 0.08);
    border: 1px solid rgba(196, 124, 42, 0.25);
}

.detail-signup-card__status--closed {
    color: var(--text-muted);
    background: var(--bg-muted);
    border: 1px solid var(--border-light);
}

.detail-signup-card__spots {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1;
}

.detail-signup-card__spots span {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-muted);
    vertical-align: middle;
    margin-left: 0.35rem;
}

.detail-signup-card__meta {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.detail-signup-card__meta li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-body);
    font-size: 0.85rem;
}

.detail-signup-card__meta-key {
    color: var(--text-muted);
}

.detail-signup-card__meta-value {
    color: var(--text-primary);
    font-weight: 600;
}

/* ── 報名按鈕 ────────────────────────────────── */
.btn-detail-signup {
    display: block;
    width: 100%;
    padding: 0.9rem 1rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-align: center;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-detail-signup--primary {
    background: var(--gradient-primary);
    color: #fff;
}

.btn-detail-signup--primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    color: #fff;
}

.btn-detail-signup--cancel {
    background: transparent;
    color: var(--primary-color);
    border: 1.5px solid var(--primary-color);
}

.btn-detail-signup--cancel:hover {
    background: var(--primary-light);
}

.btn-detail-signup--disabled {
    background: var(--bg-muted);
    color: var(--text-muted);
    cursor: default;
}

.btn-detail-signup--login {
    background: transparent;
    color: var(--text-secondary);
    border: 1.5px solid var(--border-light);
    text-decoration: none;
    display: block;
    text-align: center;
}

.btn-detail-signup--login:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.detail-signup-hint {
    margin-top: 0.75rem;
    font-family: var(--font-body);
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

/* ── 進度條 ──────────────────────────────────── */
.detail-progress {
    height: 4px;
    background: var(--border-light);
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.detail-progress__bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.6s ease;
}

/* ── RWD ─────────────────────────────────────── */
@@media (max-width: 991px) {
    .detail-hero { height: 300px; }
    .detail-hero__content { padding: 1.75rem; }
    .detail-sidebar { position: static; margin-top: 2rem; }
    .detail-body { padding: 2rem 0 3rem; }
}

@@media (max-width: 575px) {
    .detail-hero { height: 240px; }
    .detail-hero__title { font-size: 1.5rem; }
}