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

:root
{
    --bg: #0f1020;
    --panel: #1a1c2e;
    --panel-2: #23263d;
    --accent: #6c5ce7;
    --accent-2: #00cec9;
    --text: #e6e8f0;
    --muted: #9aa0b5;
    --danger: #ff6b6b;
    --ok: #2ecc71;
    --border: #2d3150;
}

body
{
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 20% 0%, #1e2148 0%, var(--bg) 60%);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    background: rgba(26, 28, 46, 0.8);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.brand
{
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand .logo
{
    font-size: 1.6rem;
}

.brand h1
{
    font-size: 1.3rem;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline
{
    font-size: 0.82rem;
    color: var(--muted);
}

.layout
{
    flex: 1;
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 20px;
    padding: 20px 28px;
    align-items: start;
}

.panel
{
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
}

.panel h2
{
    font-size: 0.95rem;
    color: var(--accent-2);
    margin: 6px 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.panel h2:not(:first-child)
{
    margin-top: 24px;
}

.dropzone
{
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 28px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--panel-2);
}

.dropzone:hover,
.dropzone.dragover
{
    border-color: var(--accent);
    background: rgba(108, 92, 231, 0.08);
}

.drop-inner .icon
{
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
}

.drop-inner p
{
    color: var(--text);
    font-size: 0.9rem;
}

.drop-inner small
{
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.75rem;
}

.link-btn
{
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: inherit;
    text-decoration: underline;
}

.file-meta
{
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--muted);
    background: var(--panel-2);
    padding: 8px 12px;
    border-radius: 8px;
}

.options
{
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.opt
{
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--text);
    cursor: pointer;
}

.opt input[type="checkbox"]
{
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
}

.opt select,
.prefix-input
{
    margin-left: auto;
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 0.82rem;
}

.prefix-input
{
    width: 56px;
}

.actions
{
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn
{
    flex: 1;
    padding: 11px 14px;
    border-radius: 10px;
    border: none;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s ease, opacity 0.2s;
}

.btn:active
{
    transform: scale(0.97);
}

.btn:disabled
{
    opacity: 0.4;
    cursor: not-allowed;
}

.btn.primary
{
    background: linear-gradient(90deg, var(--accent), #8e7bff);
    color: #fff;
}

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

.status
{
    margin-top: 12px;
    font-size: 0.82rem;
    min-height: 18px;
}

.status.ok
{
    color: var(--ok);
}

.status.err
{
    color: var(--danger);
}

.editor-block
{
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.editor-block + .editor-block
{
    margin-top: 18px;
}

.editor-head
{
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.editor-head h3
{
    font-size: 0.9rem;
    color: var(--muted);
}

.head-actions
{
    display: flex;
    gap: 8px;
}

.mini-btn
{
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--accent-2);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.78rem;
    cursor: pointer;
}

.mini-btn:disabled
{
    opacity: 0.4;
    cursor: not-allowed;
}

.code-area
{
    width: 100%;
    height: 240px;
    background: #0c0d1a;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: #c8f0d8;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.82rem;
    padding: 12px;
    resize: vertical;
    line-height: 1.5;
    tab-size: 4;
}

.code-area:focus
{
    outline: none;
    border-color: var(--accent);
}

.stats
{
    margin-top: 14px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: var(--muted);
}

.stats b
{
    color: var(--accent-2);
}

.foot
{
    text-align: center;
    padding: 14px;
    font-size: 0.75rem;
    color: var(--muted);
    border-top: 1px solid var(--border);
}

.hidden
{
    display: none !important;
}

/* ---- 混淆强度模式卡片 ---- */
.modes
{
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mode
{
    position: relative;
    cursor: pointer;
}

.mode input[type="radio"]
{
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.mode-card
{
    display: block;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--panel-2);
    transition: all 0.15s ease;
}

.mode-card:hover
{
    border-color: var(--accent);
}

.mode input[type="radio"]:checked + .mode-card
{
    border-color: var(--accent);
    background: rgba(108, 92, 231, 0.12);
    box-shadow: 0 0 0 1px var(--accent) inset;
}

.mode-title
{
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}

.mode-desc
{
    display: block;
    font-size: 0.76rem;
    color: var(--muted);
    line-height: 1.4;
}

@media (max-width: 860px)
{
    .layout
    {
        grid-template-columns: 1fr;
    }
}