/* ============================================================
   T-MALL-POSTER-1007: 商城宣传海报弹窗 (左预览 / 右编辑文字)
   颜色全部走商城 CSS 变量 (--mall-text / --mall-card-bg / --mall-border),
   夜间模式 (theme.css body[data-night]) 自动适配。
   ============================================================ */
/* z-index 900: 低于登录弹窗 (product.css .login-modal-overlay 1000) —
   未登录点保存时登录框须盖在海报弹窗之上 */
.poster-modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 900;
    background: rgba(0, 0, 0, 0.55);
    align-items: center; justify-content: center; padding: 16px;
}
.poster-modal-overlay.show { display: flex; animation: overlayFadeIn 0.2s var(--mall-ease); }

.poster-modal {
    position: relative;
    /* T-MODAL-DVH-1013: vh→min(vh,dvh) + overscroll-behavior 防滚动穿透 */
    width: min(960px, 96vw); max-height: min(92vh, 92dvh); overflow: auto; overscroll-behavior: contain;
    background: var(--mall-card-bg, #fff); color: var(--mall-text, #1c1c1e);
    border: 1px solid var(--mall-border, rgba(60,60,67,.12));
    border-radius: var(--mall-radius-lg, 18px);
    box-shadow: var(--mall-shadow-hover, 0 10px 34px rgba(0,0,0,.14));
}
.poster-modal-close {
    position: absolute; top: 14px; right: 14px; z-index: 2;
    width: 34px; height: 34px; border-radius: 50%;
    border: 1px solid var(--mall-border, #d0d7de);
    background: var(--mall-bg, #f6f8fa); color: var(--mall-text-muted, #57606a);
    cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
}
.poster-modal-header { padding: 22px 26px 6px; }
.poster-modal-title { margin: 0; font-size: 20px; font-weight: 700; color: var(--mall-text, #1c1c1e); }
.poster-modal-sub { margin: 6px 0 0; font-size: 13px; color: var(--mall-text-muted, #8e8e93); }

/* T-MALL-POSTER-UX-01 (t_posterux_1011): 弹窗双列 左 2/3 预览 / 右 1/3 文字调整
   (原 1fr:1fr; poster.php 编辑弹窗与 poster_modal.php 宣传海报弹窗共用本骨架) */
.poster-modal-body {
    display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 22px; padding: 14px 26px 26px;
}

/* 左列: 预览 */
.poster-preview-col { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.poster-preview-wrap {
    position: relative; border-radius: var(--mall-radius, 14px); overflow: hidden;
    border: 1px solid var(--mall-border, #d0d7de); background: var(--mall-bg, #f6f8fa);
    display: flex; justify-content: center;
}
#poster-preview-canvas { display: block; width: 100%; height: auto; max-height: 68vh; }
.poster-preview-loading {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    font-size: 13px; color: var(--mall-text-muted, #8e8e93);
    background: var(--mall-bg, #f6f8fa);
}
.poster-preview-loading.is-hidden { display: none; }
.poster-tpl-strip { display: flex; gap: 8px; flex-wrap: wrap; }
.poster-tpl-thumb {
    width: 56px; height: 99px; border-radius: 8px; overflow: hidden; cursor: pointer;
    border: 2px solid transparent; background: var(--mall-bg, #f6f8fa); padding: 0;
}
.poster-tpl-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.poster-tpl-thumb.is-active { border-color: var(--mall-primary, #E07D00); }

/* 右列: 表单 */
.poster-form-col { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.poster-field { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--mall-text-muted, #8e8e93); }
.poster-field input {
    padding: 10px 12px; font-size: 14px;
    color: var(--mall-text, #1c1c1e);
    background: var(--mall-bg, #f6f8fa);
    border: 1px solid var(--mall-border, #d0d7de);
    border-radius: var(--mall-radius-sm, 10px);
    outline: none;
}
.poster-field input:focus { border-color: var(--mall-primary, #E07D00); }
.poster-form-actions { margin-top: 6px; }
.poster-save-btn { width: 100%; justify-content: center; }
.poster-save-btn.is-busy { opacity: .6; pointer-events: none; }
.poster-save-hint { margin: 8px 0 0; font-size: 12px; color: var(--mall-text-muted, #8e8e93); text-align: center; }

/* 详情页「宣传海报」入口按钮 (与 .btn-fav 同款外观; 类名独立防 bindFavorite 误绑) */
.btn-poster {
    flex: 1 1 0; min-width: 0; padding: 12px; text-align: center;
    background: var(--mall-bg, #f6f8fa); color: var(--mall-text-muted, #57606a);
    border: 1px solid var(--mall-border, #d0d7de); border-radius: 6px; font-weight: 600;
    display: inline-flex; align-items: center; justify-content: center; gap: 6px; line-height: 1;
    cursor: pointer;
}
.btn-poster:hover { border-color: var(--mall-primary, #E07D00); color: var(--mall-primary, #E07D00); }

/* 移动端: 单列 (预览在上, 表单在下) */
@media (max-width: 767px) {
    .poster-modal-body { grid-template-columns: 1fr; }
    #poster-preview-canvas { max-height: 52vh; }
}