/* 优象AI视频 — 前端样式（复用 yam-* CSS 变量体系，前缀改为 yav-） */

/* 暗色主题（默认） */
.yav-app {
    --yav-bg: #0a0a0f;
    --yav-surface: #141420;
    --yav-surface2: #1a1a2e;
    --yav-border: #2a2a3e;
    --yav-text: #e0e0e8;
    --yav-text-dim: #8888a0;
    --yav-accent: #6c5ce7;
    --yav-accent2: #fd79a8;
    --yav-accent-hover: #7c6cf7;
    --yav-success: #00b894;
    --yav-danger: #e17055;
    --yav-radius: 12px;
    background: var(--yav-bg);
    color: var(--yav-text);
    border-radius: 0;
}

/* 亮色主题适配 */
body.theme-light .yav-app {
    --yav-bg: #f5f5f7;
    --yav-surface: #ffffff;
    --yav-surface2: #f0f0f4;
    --yav-border: #e0e0e6;
    --yav-text: #1a1a2e;
    --yav-text-dim: #666680;
}

/* 登录提示 */
.yav-login-wrap {
    text-align: center;
    padding: 60px 20px;
    color: var(--yav-text-dim, #888);
    font-size: 16px;
}
.yav-login-wrap a { color: #6c5ce7; }

/* ── Tabs ── */
.yav-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--yav-border);
    padding-bottom: 0;
}
.yav-tab {
    background: none;
    border: none;
    color: var(--yav-text-dim);
    font-size: 15px;
    padding: 12px 20px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}
.yav-tab:hover { color: var(--yav-text); }
.yav-tab.active {
    color: var(--yav-accent);
    border-bottom-color: var(--yav-accent);
}

/* ── 模式切换 ── */
.yav-mode-toggle {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.yav-mode-btn {
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    color: var(--yav-text-dim);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.yav-mode-sub { font-size: 11px; opacity: 0.7; }
.yav-mode-btn:hover { border-color: var(--yav-accent); color: var(--yav-text); }
.yav-mode-btn.active {
    background: rgba(108, 92, 231, 0.15);
    border-color: var(--yav-accent);
    color: var(--yav-accent);
}
.yav-mode-hint {
    font-size: 13px;
    color: var(--yav-text-dim);
    margin-bottom: 16px;
    padding: 8px 12px;
    background: var(--yav-surface);
    border-radius: 8px;
    border-left: 3px solid var(--yav-accent);
}

/* ── Grid 布局 ── */
.yav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}
.yav-left, .yav-right {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
@media (max-width: 768px) {
    .yav-grid { grid-template-columns: 1fr; }
    .yav-mode-btn { padding: 6px 12px; font-size: 13px; }
}

/* ── 上传区 ── */
.yav-upload-zone {
    min-height: 160px;
    border: 2px dashed var(--yav-border);
    border-radius: var(--yav-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    transition: border-color 0.2s, background 0.2s;
    background: var(--yav-surface);
    overflow: hidden;
}
/* 单帧模式：上传区与右侧视频容器等高 */
#yav-upload-section.yav-mode-single .yav-upload-zone {
    min-height: 320px;
}
/* 双帧模式：两个小区区在20px 等分视频容器高度 */
#yav-upload-section.yav-mode-dual .yav-upload-zone {
    min-height: 150px;
}
.yav-upload-zone:hover,
.yav-upload-zone.dragover { border-color: var(--yav-accent); background: rgba(108,92,231,0.05); }
.yav-upload-placeholder {
    text-align: center;
    color: var(--yav-text-dim);
    padding: 20px;
    pointer-events: none;
}
.yav-upload-placeholder svg { opacity: 0.5; margin-bottom: 8px; }
.yav-upload-placeholder p { margin: 4px 0; font-size: 14px; }
.yav-upload-placeholder .yav-hint { font-size: 12px; opacity: 0.7; }
.yav-link { color: var(--yav-accent); text-decoration: underline; }
.yav-preview-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: contain;
    display: block;
}
.yav-remove-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 13px;
    line-height: 24px;
    text-align: center;
    padding: 0;
    z-index: 2;
}
.yav-remove-btn:hover { background: var(--yav-danger); }

/* ── 提示词 ── */
.yav-prompt {
    width: 100%;
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    border-radius: var(--yav-radius);
    color: var(--yav-text);
    font-size: 14px;
    padding: 12px;
    resize: vertical;
    transition: border-color 0.2s;
    box-sizing: border-box;
    font-family: inherit;
}
.yav-prompt:focus { outline: none; border-color: var(--yav-accent); }
.yav-prompt::placeholder { color: var(--yav-text-dim); }

/* ── 选项行 ── */
.yav-options-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.yav-option-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.yav-option-group label {
    font-size: 12px;
    color: var(--yav-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.yav-seg {
    display: flex;
    gap: 4px;
}
.yav-seg-btn {
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    color: var(--yav-text-dim);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}
.yav-seg-btn:hover { border-color: var(--yav-accent); color: var(--yav-text); }
.yav-seg-btn.active {
    background: var(--yav-accent);
    border-color: var(--yav-accent);
    color: #fff;
}

/* ── 按钮 ── */
.yav-btn-row { display: flex; gap: 8px; }
.yav-btn {
    padding: 10px 20px;
    border-radius: var(--yav-radius);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
}
.yav-btn-primary {
    flex: 1;
    background: linear-gradient(135deg, var(--yav-accent), var(--yav-accent2));
    color: #fff;
    font-size: 15px;
    padding: 12px 24px;
}
.yav-btn-primary:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.yav-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    filter: none;
}
.yav-btn-outline {
    background: transparent;
    border: 1px solid var(--yav-border);
    color: var(--yav-text);
}
.yav-btn-outline:hover { background: var(--yav-surface2); border-color: var(--yav-accent); }

/* ── 余额条 ── */
.yav-balance-bar {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--yav-text-dim);
    padding: 8px 12px;
    background: var(--yav-surface);
    border-radius: 8px;
    border: 1px solid var(--yav-border);
}
.yav-balance-bar strong { color: var(--yav-text); }

/* ── 进度条 ── */
.yav-progress { padding: 8px 0; }
.yav-progress-bar {
    height: 4px;
    background: var(--yav-surface2);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 8px;
}
.yav-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--yav-accent), var(--yav-accent2));
    border-radius: 2px;
    transition: width 0.5s ease;
}
.yav-progress-text {
    margin: 0;
    font-size: 13px;
    color: var(--yav-text-dim);
    text-align: center;
}

/* ── 视频预览区 ── */
.yav-viewer-container {
    min-height: 320px;
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    border-radius: var(--yav-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.yav-viewer-empty {
    text-align: center;
    color: var(--yav-text-dim);
    padding: 40px;
}
.yav-viewer-empty p { margin: 12px 0 0; font-size: 14px; }
.yav-viewer-video {
    width: 100%;
    max-height: 480px;
    border-radius: var(--yav-radius);
    display: block;
}

/* ── 下载按钮 ── */
.yav-downloads { display: flex; gap: 8px; }
.yav-btn-download {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 12px;
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    border-radius: var(--yav-radius);
    color: var(--yav-text);
    text-decoration: none;
    transition: all 0.2s;
    font-size: 14px;
}
.yav-btn-download:hover { border-color: var(--yav-accent); background: rgba(108,92,231,0.08); color: var(--yav-accent); }
.yav-btn-download span { font-size: 12px; color: var(--yav-text-dim); }

/* ── 生成动画 ── */
.yav-generating {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--yav-surface);
    z-index: 1;
    gap: 16px;
}
.yav-gen-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--yav-border);
    border-top-color: var(--yav-accent);
    border-radius: 50%;
    animation: yav-spin 1s linear infinite;
}
@keyframes yav-spin { to { transform: rotate(360deg); } }
.yav-gen-text {
    font-size: 15px;
    color: var(--yav-text);
    font-weight: 600;
}
.yav-gen-step {
    font-size: 13px;
    color: var(--yav-text-dim);
}

/* ── 历史记录 ── */
.yav-history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.yav-empty {
    text-align: center;
    color: var(--yav-text-dim);
    padding: 40px;
    font-size: 14px;
}
.yav-history-item {
    display: grid;
    grid-template-columns: 80px 1fr auto;
    gap: 12px;
    align-items: start;
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    border-radius: var(--yav-radius);
    padding: 12px;
    transition: border-color 0.2s;
}
.yav-history-item:hover { border-color: var(--yav-accent); }
.yav-thumb-link { display: block; flex-shrink: 0; }
.yav-history-thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
    background: var(--yav-surface2);
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
    display: block;
}
.yav-thumb-link:hover .yav-history-thumb { opacity: 0.75; transform: scale(1.03); }

/* Lightbox */
.yav-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.88);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    animation: yav-lb-in 0.18s ease;
}
@keyframes yav-lb-in { from { opacity: 0; } to { opacity: 1; } }
.yav-lightbox-inner {
    position: relative;
    max-width: 92vw;
    max-height: 90vh;
    cursor: default;
}
.yav-lightbox-inner img {
    display: block;
    max-width: 92vw;
    max-height: 88vh;
    border-radius: 8px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.6);
    object-fit: contain;
}
.yav-lightbox-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: none;
    font-size: 20px;
    line-height: 32px;
    text-align: center;
    cursor: pointer;
    padding: 0;
    backdrop-filter: blur(4px);
}
.yav-lightbox-close:hover { background: var(--yav-danger); }
.yav-history-thumb-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 6px;
    background: var(--yav-surface2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}
.yav-history-info { display: flex; flex-direction: column; gap: 4px; }
.yav-history-prompt {
    font-size: 14px;
    color: var(--yav-text);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.yav-history-meta {
    font-size: 12px;
    color: var(--yav-text-dim);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.yav-history-actions { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.yav-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}
.yav-badge-done       { background: rgba(0,184,148,0.15); color: var(--yav-success); }
.yav-badge-failed     { background: rgba(225,112,85,0.15); color: var(--yav-danger); }
.yav-badge-generating { background: rgba(108,92,231,0.15); color: var(--yav-accent); }
.yav-badge-submitted  { background: rgba(253,203,110,0.15); color: #f9ca24; }
.yav-badge-other      { background: var(--yav-surface2); color: var(--yav-text-dim); }

/* ── 历史视频预览 ── */
.yav-history-video {
    width: 100%;
    max-width: 200px;
    border-radius: 6px;
    margin-top: 4px;
}

/* ── 状态徽章（顶部） ── */
.yav-error-box {
    background: rgba(225,112,85,0.1);
    border: 1px solid var(--yav-danger);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--yav-danger);
    margin-top: 8px;
}
/* ── 上传区小菜单 ── */
.yav-upload-menu {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--yav-surface);
    border: 1px solid var(--yav-border);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    overflow: hidden;
    z-index: 50;
    min-width: 200px;
    animation: yavMenuIn 0.15s ease;
}
@keyframes yavMenuIn {
    from { opacity: 0; transform: translateX(-50%) translateY(6px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.yav-upload-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 20px;
    background: none;
    border: none;
    color: var(--yav-text);
    font-size: 14px;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s;
}
.yav-upload-menu-item:not(:last-child) {
    border-bottom: 1px solid var(--yav-border);
}
.yav-upload-menu-item:hover {
    background: rgba(108,92,231,0.1);
    color: var(--yav-accent);
}
/* ── AI 图库选择按钮 ── */
.yav-picker-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 6px 14px;
    font-size: 13px;
    color: var(--yav-accent);
    background: rgba(108,92,231,0.1);
    border: 1px solid rgba(108,92,231,0.3);
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}
.yav-picker-btn:hover {
    background: rgba(108,92,231,0.2);
    border-color: rgba(108,92,231,0.6);
}

/* ── AI 图库弹窗 ── */
.yav-picker-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}
.yav-picker-overlay.flex { display: flex; }

.yav-picker-modal {
    display: flex;
    flex-direction: column;
    background: var(--yav-surface);
    border-radius: 12px;
    width: min(90vw, 720px);
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.yav-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--yav-border);
    font-weight: 600;
    font-size: 15px;
    flex-shrink: 0;
}

.yav-picker-close {
    background: none;
    border: none;
    font-size: 22px;
    color: var(--yav-text-dim);
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
    transition: color 0.2s;
}
.yav-picker-close:hover { color: var(--yav-danger); }

.yav-picker-grid {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    align-content: start;
}

.yav-picker-item {
    aspect-ratio: 1;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    background-color: var(--yav-surface2);
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.15s, transform 0.15s;
}
.yav-picker-item:hover {
    border-color: var(--yav-accent);
    transform: scale(1.03);
}

.yav-picker-loading,
.yav-picker-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: var(--yav-text-dim);
    font-size: 14px;
}

.yav-picker-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--yav-border);
    text-align: center;
    flex-shrink: 0;
}

#yav-picker-more {
    padding: 7px 24px;
    font-size: 13px;
    background: var(--yav-surface2);
    border: 1px solid var(--yav-border);
    border-radius: 6px;
    cursor: pointer;
    color: var(--yav-text);
    transition: background 0.2s;
}
#yav-picker-more:hover { background: var(--yav-surface3, #3d3d5c); }

/* ── 运镜模板 ── */
.yav-motion-wrap {
    margin: 12px 0 4px;
}
.yav-motion-label {
    font-size: 13px;
    color: var(--yav-text-dim);
    margin-bottom: 8px;
    font-weight: 500;
}
.yav-motion-hint-txt {
    font-size: 11px;
    opacity: 0.7;
    font-weight: 400;
}
.yav-motion-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.yav-motion-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 10px;
    min-width: 62px;
    background: var(--yav-surface2);
    border: 1.5px solid var(--yav-border);
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.12s;
    color: var(--yav-text);
    font-size: 13px;
    line-height: 1;
}
.yav-motion-item:hover {
    border-color: var(--yav-accent);
    background: rgba(108,92,231,0.12);
}
.yav-motion-item.active {
    border-color: var(--yav-accent);
    background: rgba(108,92,231,0.22);
    box-shadow: 0 0 0 1px var(--yav-accent);
    transform: translateY(-1px);
}
.yav-motion-icon {
    font-size: 18px;
    line-height: 1;
}
.yav-motion-name {
    font-size: 11px;
    color: var(--yav-text-dim);
    white-space: nowrap;
}
.yav-motion-item.active .yav-motion-name {
    color: var(--yav-accent);
}