/* 雾化淡化 — 紧凑工作台 · 单屏 100vh */
:root {
    --bg-root: #0b0d10;
    --bg-app: #0f1218;
    --bg-panel: #161b24;
    --bg-input: #0d1016;
    --border: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.12);
    --text: #e6e8ec;
    --text-muted: #8b929e;
    --accent: #4f8ff7;
    --accent-hover: #6ba3ff;
    --accent-glow: rgba(79, 143, 247, 0.25);
    --success: #3ecf8e;
    --success-hover: #52d99a;
    --danger: #f07178;
    --radius: 10px;
    --radius-sm: 6px;
    --font: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
}

html.wuhua-embed,
html.wuhua-embed body {
    height: 100%;
    overflow: hidden;
}

body {
    min-height: 100vh;
    max-height: 100vh;
    font-family: var(--font);
    font-size: 13px;
    line-height: 1.45;
    color: var(--text);
    background: var(--bg-root);
    background-image:
        radial-gradient(ellipse 120% 80% at 50% -20%, rgba(79, 143, 247, 0.12), transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 50%, rgba(62, 207, 142, 0.06), transparent);
    overflow: hidden;
}

.app {
    height: 100vh;
    max-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* —— 顶栏 —— */
.topbar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    padding: 10px 16px;
    background: linear-gradient(180deg, rgba(22, 27, 36, 0.95) 0%, rgba(15, 18, 24, 0.88) 100%);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

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

.topbar__mark {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--accent) 0%, #2b6fd4 100%);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.topbar__title {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text);
}

.topbar__sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* —— 主区 —— */
.main {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: 10px 12px 12px;
}

/* 工作区：大图预览 + 底部面板（导入 + 调节） */
.workspace {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
}

/* 主预览：占满剩余高度 */
.preview-hero {
    flex: 1;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.preview-hero__empty {
    text-align: center;
    padding: 24px;
    max-width: 280px;
}

.preview-hero__empty[hidden] {
    display: none !important;
}

.preview-hero__empty-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.preview-hero__empty-hint {
    font-size: 12px;
    color: var(--text-muted);
    opacity: 0.85;
    line-height: 1.5;
}

.preview-hero__canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    border-radius: var(--radius-sm);
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(79, 143, 247, 0.15);
}

/* 底部：导入条 + 调节条，同一面板容器 */
.control-dock {
    flex-shrink: 0;
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.dock-upload {
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.dock-upload[hidden] {
    display: none !important;
}

.dock-upload:hover {
    background: rgba(79, 143, 247, 0.06);
}

.dock-upload.dragover {
    background: rgba(79, 143, 247, 0.12);
    border-bottom-color: rgba(79, 143, 247, 0.35);
}

.dock-upload__inner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    flex-wrap: wrap;
}

.dock-upload__icon {
    flex-shrink: 0;
    opacity: 0.75;
}

.dock-upload__text {
    flex: 1;
    min-width: 140px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.dock-upload__lead {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.dock-upload__hint {
    font-size: 11px;
    color: var(--text-muted);
}

.dock-editor {
    flex-shrink: 0;
}

.dock-editor[hidden] {
    display: none !important;
}

.control-dock__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 14px;
    padding: 10px 12px;
}

.ref-thumb {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.ref-thumb__label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.ref-thumb__frame {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
    background: #000;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ref-thumb__canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.control-dock__center {
    flex: 1;
    min-width: 180px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-strip {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    padding: 4px 8px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    width: fit-content;
    max-width: 100%;
}

.nav-strip__count {
    font-size: 11px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--text-muted);
    min-width: 3.5em;
    text-align: center;
}

.params-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    align-items: flex-end;
}

.param--compact {
    flex: 1;
    min-width: 140px;
}

.param__top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 4px;
}

.param__label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.param__value {
    font-size: 11px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    min-width: 1.75em;
    text-align: right;
}

/* 滑块 */
.range {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, var(--bg-input) 0%, #252b38 100%);
    border-radius: 3px;
    border: 1px solid var(--border);
    outline: none;
}

.range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(180deg, var(--accent-hover) 0%, var(--accent) 100%);
    border: 2px solid rgba(255, 255, 255, 0.25);
    cursor: pointer;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.range::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid rgba(255, 255, 255, 0.25);
    cursor: pointer;
}

.range:disabled::-webkit-slider-thumb {
    cursor: not-allowed;
    opacity: 0.5;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 14px;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn--block {
    width: 100%;
}

.btn--sm {
    padding: 6px 12px;
    font-size: 11px;
}

.btn--primary {
    background: linear-gradient(180deg, var(--accent-hover) 0%, #3d7de0 100%);
    color: #fff;
    box-shadow: 0 2px 10px var(--accent-glow);
}

.btn--primary:hover:not(:disabled) {
    background: linear-gradient(180deg, #7eb0ff 0%, var(--accent) 100%);
}

.btn--success {
    background: linear-gradient(180deg, #4ed99a 0%, #2faa6f 100%);
    color: #062112;
    box-shadow: 0 2px 10px rgba(62, 207, 142, 0.25);
}

.btn--success:hover:not(:disabled) {
    filter: brightness(1.06);
}

.btn--muted {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn--muted:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
}

.btn--ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid transparent;
}

.btn--ghost:hover:not(:disabled) {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.btn--nav {
    width: 32px;
    height: 32px;
    padding: 0;
    font-size: 18px;
    line-height: 1;
    border-radius: 8px;
}

.actions--inline {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    flex-shrink: 0;
    align-items: center;
}

.actions--inline .btn {
    padding: 7px 12px;
    font-size: 11px;
}

/* 窄屏：控制条纵向堆叠 */
@media (max-width: 640px) {
    .control-dock__inner {
        flex-direction: column;
        align-items: stretch;
    }

    .control-dock__center {
        min-width: 0;
    }

    .ref-thumb {
        flex-direction: row;
        align-items: center;
        gap: 10px;
    }

    .actions--inline {
        justify-content: stretch;
    }

    .actions--inline .btn {
        flex: 1;
        min-width: 0;
    }
}