/* ==================== CSS变量与全局 ==================== */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1a2332;
    --border-color: #2d3a4f;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59, 130, 246, 0.15);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --transition: 0.2s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ==================== 顶部导航 ==================== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    padding-left: 16px;
    border-left: 1px solid var(--border-color);
}

.header-right {
    display: flex;
    gap: 16px;
}

.selector-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.selector-group label {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.selector-group select {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    outline: none;
    transition: var(--transition);
    min-width: 150px;
}

.selector-group select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-light);
}

/* ==================== 主体布局 ==================== */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ==================== 左侧导航 ==================== */
.sidebar {
    width: 200px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-title {
    padding: 16px 20px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.config-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0 8px;
}

.config-nav::-webkit-scrollbar {
    width: 4px;
}

.config-nav::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin-bottom: 2px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 500;
}

.nav-icon {
    font-size: 14px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

/* ==================== 中间表单区域 ==================== */
.content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    background: var(--bg-primary);
    min-width: 0;
}

.content::-webkit-scrollbar {
    width: 6px;
}

.content::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.form-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
}

.placeholder-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.form-placeholder h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-placeholder p {
    font-size: 14px;
}

/* 表单样式 */
.form-section {
    margin-bottom: 24px;
}

.form-section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group .hint {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: normal;
    margin-left: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: var(--transition);
    font-family: 'Consolas', 'Courier New', monospace;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-light);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

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

.form-check label {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

/* 动态列表项 */
.dynamic-list {
    margin-bottom: 16px;
}

.dynamic-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 12px;
    position: relative;
}

.dynamic-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.dynamic-item-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}

.dynamic-item .btn-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 18px;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    line-height: 1;
}

.dynamic-item .btn-remove:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.dynamic-add {
    margin-top: 8px;
}

/* ==================== 右侧输出面板 ==================== */
.output-panel {
    width: 380px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.output-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.output-actions {
    display: flex;
    gap: 6px;
}

.output-content {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', 'Source Code Pro', monospace;
    font-size: 12px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-all;
    color: #c9d1d9;
}

.output-content::-webkit-scrollbar {
    width: 6px;
}

.output-content::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.output-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
    text-align: center;
}

.output-content .cmd-comment {
    color: #8b949e;
    font-style: italic;
}

.output-content .cmd-main {
    color: #79c0ff;
}

.output-content .cmd-ip {
    color: #a5d6ff;
}

.output-status {
    padding: 8px 16px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    text-align: center;
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.output-status.success {
    color: var(--success);
}

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

/* ==================== 按钮 ==================== */
.btn {
    padding: 8px 16px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:hover {
    background: var(--accent-hover);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

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

.btn-outline:hover {
    background: var(--accent-light);
}

.btn-block {
    width: 100%;
}

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

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.btn-success {
    background: var(--success);
    border-color: var(--success);
}

.btn-success:hover {
    background: #16a34a;
}

/* ==================== Toast ==================== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 10px 24px;
    border-radius: 20px;
    font-size: 13px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 9999;
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1200px) {
    .output-panel {
        width: 300px;
    }
}

@media (max-width: 900px) {
    .main-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        flex-direction: row;
        overflow-x: auto;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .config-nav {
        display: flex;
        flex-direction: row;
        padding: 8px;
    }

    .nav-item {
        padding: 8px 12px;
        font-size: 12px;
    }

    .sidebar-title {
        display: none;
    }

    .sidebar-footer {
        border-top: none;
        border-left: 1px solid var(--border-color);
    }

    .output-panel {
        width: 100%;
        height: 250px;
        border-left: none;
        border-top: 1px solid var(--border-color);
    }
}