/* CyberStrikeAI C2 Module — Redesigned UI */

/* ============================================================================
   CSS Variables
   ============================================================================ */

:root {
    --c2-accent: #3b82f6;
    --c2-accent-hover: #2563eb;
    --c2-accent-dim: rgba(59, 130, 246, 0.08);
    --c2-accent-glow: rgba(59, 130, 246, 0.25);
    --c2-green: #10b981;
    --c2-green-dim: rgba(16, 185, 129, 0.08);
    --c2-red: #ef4444;
    --c2-red-dim: rgba(239, 68, 68, 0.08);
    --c2-amber: #f59e0b;
    --c2-amber-dim: rgba(245, 158, 11, 0.08);
    --c2-purple: #8b5cf6;
    --c2-purple-dim: rgba(139, 92, 246, 0.08);
    --c2-surface: #ffffff;
    --c2-surface-alt: #f8fafc;
    --c2-border: #e2e8f0;
    --c2-border-hover: #cbd5e1;
    --c2-text: #0f172a;
    --c2-text-dim: #64748b;
    --c2-text-muted: #94a3b8;
    --c2-radius: 12px;
    --c2-radius-sm: 8px;
    --c2-radius-xs: 6px;
    --c2-shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --c2-shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --c2-shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
    --c2-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
}

/* ============================================================================
   Form Controls (scoped to C2 pages)
   ============================================================================ */

#page-c2-listeners .form-control,
#page-c2-sessions .form-control,
#page-c2-tasks .form-control,
#page-c2-payloads .form-control,
#page-c2-events .form-control,
#page-c2-profiles .form-control,
.c2-modal .form-control {
    display: block;
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--c2-text);
    background: var(--c2-surface);
    border: 1.5px solid var(--c2-border);
    border-radius: var(--c2-radius-sm);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    font-family: inherit;
    -webkit-appearance: none;
    appearance: none;
}

#page-c2-listeners .form-control:focus,
#page-c2-sessions .form-control:focus,
#page-c2-tasks .form-control:focus,
#page-c2-payloads .form-control:focus,
#page-c2-events .form-control:focus,
#page-c2-profiles .form-control:focus,
.c2-modal .form-control:focus {
    border-color: var(--c2-accent);
    box-shadow: 0 0 0 3px var(--c2-accent-dim);
}

#page-c2-payloads select.form-control,
#page-c2-sessions select.form-control,
.c2-modal select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M2.5 4.5L6 8l3.5-3.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    padding-right: 36px;
    cursor: pointer;
}

/* 原生下拉：避免 appearance:none 在部分浏览器中导致 select 无法正常展开 */
#page-c2-payloads select.form-control.c2-native-select,
#page-c2-sessions select.form-control.c2-native-select,
.c2-modal select.form-control.c2-native-select {
    appearance: auto;
    -webkit-appearance: menulist-button;
    background-image: none;
    padding-right: 14px;
}

#page-c2-payloads textarea.form-control,
.c2-modal textarea.form-control {
    resize: vertical;
    min-height: 80px;
    font-family: var(--c2-mono);
    font-size: 13px;
    line-height: 1.6;
}

#page-c2-payloads .form-control::placeholder,
.c2-modal .form-control::placeholder {
    color: var(--c2-text-muted);
}

/* ============================================================================
   C2 Button Overrides (within C2 scope)
   ============================================================================ */

.c2-listener-card-actions .btn-primary,
.c2-payload-card .btn-primary,
.c2-modal-footer .btn-primary {
    background: var(--c2-accent);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--c2-radius-sm);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.c2-listener-card-actions .btn-primary:hover,
.c2-payload-card .btn-primary:hover,
.c2-modal-footer .btn-primary:hover {
    background: var(--c2-accent-hover);
    box-shadow: 0 4px 12px var(--c2-accent-glow);
    transform: translateY(-1px);
}

/* ============================================================================
   Layout
   ============================================================================ */

.c2-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
    flex: 1;
    min-height: calc(100vh - 200px);
    padding: 24px;
    color: var(--c2-text-dim);
}

.c2-loading {
    text-align: center;
    padding: 48px;
    color: var(--c2-text-dim);
}

.c2-error {
    color: var(--c2-red);
    padding: 20px;
    text-align: center;
    background: var(--c2-red-dim);
    border-radius: var(--c2-radius-sm);
    margin: 12px;
}

/* ============================================================================
   Listener Cards
   ============================================================================ */

.c2-listener-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(292px, 1fr));
    gap: 20px;
    padding: 20px 24px 28px;
    align-items: stretch;
}
.c2-listener-grid:has(.c2-empty) {
    display: flex;
}

.c2-listener-card {
    background: var(--c2-surface);
    border: 1px solid var(--c2-border);
    border-radius: 14px;
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    box-shadow: var(--c2-shadow-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    border-top: 3px solid var(--c2-border);
}

.c2-listener-card--running { border-top-color: var(--c2-green); }
.c2-listener-card--stopped { border-top-color: var(--c2-text-muted); }
.c2-listener-card--error { border-top-color: var(--c2-amber); }

.c2-listener-card:hover {
    box-shadow: var(--c2-shadow-md);
    border-color: var(--c2-border-hover);
}

.c2-listener-card-head {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 18px 18px 0;
}

.c2-ltype-mark {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.c2-ltype-mark--http { background: linear-gradient(145deg, #3b82f6, #1d4ed8); }
.c2-ltype-mark--https { background: linear-gradient(145deg, #6366f1, #4338ca); }
.c2-ltype-mark--tcp { background: linear-gradient(145deg, #8b5cf6, #6d28d9); }
.c2-ltype-mark--ws { background: linear-gradient(145deg, #0ea5e9, #0369a1); }
.c2-ltype-mark--def { background: linear-gradient(145deg, #64748b, #475569); }

.c2-listener-card-head-main {
    flex: 1;
    min-width: 0;
}

.c2-listener-card-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.c2-listener-name {
    margin: 0;
    font-weight: 700;
    font-size: 17px;
    line-height: 1.3;
    color: var(--c2-text);
    letter-spacing: -0.02em;
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.c2-listener-pill {
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
    letter-spacing: 0.02em;
}

.c2-listener-pill--running {
    background: var(--c2-green-dim);
    color: #047857;
}

.c2-listener-pill--stopped {
    background: var(--c2-surface-alt);
    color: var(--c2-text-dim);
    border: 1px solid var(--c2-border);
}

.c2-listener-pill--error {
    background: var(--c2-amber-dim);
    color: #b45309;
}

.c2-listener-id-row {
    margin-top: 8px;
}

.c2-listener-id-full {
    display: block;
    font-family: var(--c2-mono);
    font-size: 11px;
    color: var(--c2-text-muted);
    line-height: 1.4;
    word-break: break-all;
    background: var(--c2-surface-alt);
    padding: 6px 8px;
    border-radius: 8px;
    border: 1px solid var(--c2-border);
}

.c2-listener-card-body {
    padding: 14px 18px 4px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.c2-listener-kv {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 12px;
    align-items: baseline;
    font-size: 13px;
}

.c2-listener-kv-label {
    color: var(--c2-text-muted);
    font-weight: 600;
    font-size: 12px;
}

.c2-listener-kv-val {
    color: var(--c2-text);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    word-break: break-all;
}

.c2-listener-mono {
    font-family: var(--c2-mono);
    font-size: 12px;
    font-weight: 600;
}

.c2-listener-profile-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    align-self: flex-start;
    font-size: 12px;
    font-weight: 600;
    color: #5b21b6;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    padding: 6px 10px;
    border-radius: 999px;
    max-width: 100%;
}

.c2-listener-profile-badge span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.c2-listener-profile-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #7c3aed;
    flex-shrink: 0;
}

.c2-listener-remark {
    font-size: 12px;
    color: var(--c2-text-dim);
    line-height: 1.45;
    padding: 8px 10px;
    background: var(--c2-surface-alt);
    border-radius: 8px;
    border: 1px dashed var(--c2-border);
}

.c2-listener-meta-row {
    font-size: 12px;
    color: var(--c2-text-dim);
    padding-top: 4px;
}

.c2-listener-meta-label {
    font-weight: 600;
    color: var(--c2-text-muted);
}

.c2-listener-meta-time {
    font-family: var(--c2-mono);
    font-size: 11px;
    color: var(--c2-text-dim);
}

.c2-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
    background: var(--c2-text-muted);
}

.c2-status-dot.running { background: var(--c2-green); box-shadow: 0 0 0 3px var(--c2-green-dim); }
.c2-status-dot.stopped { background: var(--c2-text-muted); }
.c2-status-dot.error { background: var(--c2-amber); box-shadow: 0 0 0 3px var(--c2-amber-dim); }
.c2-status-dot.active { background: var(--c2-green); box-shadow: 0 0 0 3px var(--c2-green-dim); }
.c2-status-dot.sleeping { background: var(--c2-amber); box-shadow: 0 0 0 3px var(--c2-amber-dim); }
.c2-status-dot.dead { background: var(--c2-text-muted); }

.c2-listener-card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    padding: 14px 16px 16px;
    margin-top: auto;
    border-top: 1px solid var(--c2-border);
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.5) 0%, var(--c2-surface-alt) 100%);
}

.c2-listener-card-actions button {
    min-height: 40px;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--c2-radius-xs);
}

/* ============================================================================
   Session Management
   ============================================================================ */

.c2-session-layout {
    display: flex;
    height: calc(100vh - 140px);
    overflow: hidden;
}

.c2-session-sidebar-wrap {
    width: 300px;
    min-width: 260px;
    max-width: 340px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--c2-border);
    background: var(--c2-surface-alt);
}

.c2-sessions-toolbar {
    flex-shrink: 0;
    padding: 8px 10px;
    border-bottom: 1px solid var(--c2-border);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.c2-sessions-filter-row {
    display: flex;
    gap: 6px;
}

.c2-sessions-toolbar .form-control {
    width: 100%;
    min-width: 0;
    font-size: 12px;
    padding: 5px 8px;
    line-height: 1.3;
}

.c2-sessions-toolbar-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--c2-text-dim);
    min-height: 18px;
    flex-wrap: wrap;
}

.c2-sessions-select-all-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    user-select: none;
    flex-shrink: 0;
}

.c2-sessions-quick-links {
    display: inline-flex;
    gap: 6px;
    margin-left: auto;
    flex-shrink: 0;
}

.c2-sessions-quick-links button {
    border: none;
    background: none;
    padding: 0;
    font-size: 11px;
    color: var(--c2-accent);
    cursor: pointer;
}

.c2-sessions-quick-links button:hover {
    text-decoration: underline;
}

.c2-sessions-count {
    font-size: 11px;
    color: var(--c2-text-muted);
    white-space: nowrap;
}

.c2-session-sidebar {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 8px 10px;
}

.c2-session-list-empty {
    padding: 20px 8px;
    text-align: center;
    font-size: 12px;
    color: var(--c2-text-dim);
    line-height: 1.5;
}

.c2-session-main {
    flex: 1;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    padding: 12px 16px 16px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 180px);
    display: flex;
    flex-direction: column;
}

.c2-session-detail {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.c2-session-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--c2-border);
    flex-shrink: 0;
}

/* Session detail hero header */
.c2-session-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    margin-bottom: 10px;
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-xs);
    background: var(--c2-surface);
    box-shadow: none;
    flex-shrink: 0;
}

.c2-session-hero__main {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    flex: 1;
}

.c2-session-hero__text {
    min-width: 0;
    flex: 1;
}

.c2-session-hero__title-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 4px;
}

.c2-session-hero__title {
    font-size: 16px;
    font-weight: 800;
    color: var(--c2-text);
    margin: 0;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
}

.c2-session-hero__sub {
    font-size: 11px;
    color: var(--c2-text-dim);
    font-family: var(--c2-mono);
    margin-bottom: 4px;
}

.c2-session-hero__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.c2-session-hero-chip {
    font-size: 10px;
    font-weight: 600;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--c2-surface);
    border: 1px solid var(--c2-border);
    color: var(--c2-text-dim);
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.c2-session-hero-chip.is-mono {
    font-family: var(--c2-mono);
    font-size: 10px;
    color: var(--c2-accent);
    background: var(--c2-accent-dim);
    border-color: rgba(59, 130, 246, 0.2);
}

.c2-session-hero-root {
    font-size: 10px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--c2-amber-dim);
    color: #b45309;
    letter-spacing: 0.04em;
}

.c2-session-avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    flex-shrink: 0;
    border: 1px solid var(--c2-border);
    font-family: var(--c2-mono);
}

.c2-session-avatar--darwin {
    background: linear-gradient(145deg, #e0e7ff 0%, #c7d2fe 100%);
    color: #4338ca;
    border-color: #c7d2fe;
}

.c2-session-avatar--windows {
    background: linear-gradient(145deg, #dbeafe 0%, #93c5fd 100%);
    color: #1d4ed8;
    border-color: #bfdbfe;
}

.c2-session-avatar--linux {
    background: linear-gradient(145deg, #fef3c7 0%, #fcd34d 100%);
    color: #b45309;
    border-color: #fde68a;
}

.c2-session-avatar--default {
    background: var(--c2-surface-alt);
    color: var(--c2-text-dim);
}

.c2-session-hero__side {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.c2-session-hero__heartbeat {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--c2-surface-alt);
    border: 1px solid var(--c2-border);
    font-size: 10px;
}

.c2-session-hero__heartbeat-label {
    color: var(--c2-text-muted);
    font-weight: 600;
}

.c2-session-hero__heartbeat-value {
    color: var(--c2-green);
    font-weight: 700;
    font-family: var(--c2-mono);
}

.c2-session-main-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px 32px;
    color: var(--c2-text-dim);
}

.c2-session-main-empty__icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    margin-bottom: 16px;
    background: var(--c2-accent-dim);
    border: 1px dashed rgba(59, 130, 246, 0.35);
    position: relative;
}

.c2-session-main-empty__icon::before,
.c2-session-main-empty__icon::after {
    content: '';
    position: absolute;
    background: var(--c2-accent);
    opacity: 0.35;
    border-radius: 2px;
}

.c2-session-main-empty__icon::before {
    left: 50%;
    top: 18px;
    width: 22px;
    height: 3px;
    margin-left: -11px;
}

.c2-session-main-empty__icon::after {
    left: 50%;
    top: 26px;
    width: 16px;
    height: 3px;
    margin-left: -8px;
}

.c2-session-main-empty h3 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--c2-text);
}

.c2-session-main-empty p {
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
    max-width: 320px;
}

.c2-session-list { display: flex; flex-direction: column; gap: 6px; }

.c2-session-item {
    position: relative;
    padding: 0;
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    border: 1px solid var(--c2-border);
    background: var(--c2-surface);
    overflow: hidden;
}

.c2-session-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--c2-border);
    transition: background 0.15s ease;
}

.c2-session-item[data-status="active"]::before { background: var(--c2-green); }
.c2-session-item[data-status="sleeping"]::before { background: var(--c2-amber); }
.c2-session-item[data-status="dead"]::before { background: var(--c2-red); }

.c2-session-item-check {
    position: absolute;
    left: 12px;
    top: 14px;
    cursor: pointer;
    z-index: 1;
}

.c2-session-item-body {
    padding: 9px 10px 8px 34px;
}

.c2-session-item:hover {
    border-color: var(--c2-border-hover);
    box-shadow: var(--c2-shadow-sm);
}

.c2-session-item.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.06) 0%, rgba(59, 130, 246, 0.02) 100%);
    border-color: var(--c2-accent);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.15), var(--c2-shadow-sm);
}

.c2-session-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 0;
}

.c2-session-host-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex: 1;
}

.c2-session-live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--c2-text-muted);
}

.c2-session-live-dot.active {
    background: var(--c2-green);
    box-shadow: 0 0 0 3px var(--c2-green-dim);
    animation: c2-pulse-dot 2.2s ease-in-out infinite;
}

.c2-session-live-dot.sleeping { background: var(--c2-amber); }
.c2-session-live-dot.dead { background: var(--c2-red); opacity: 0.7; }

@keyframes c2-pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.92); }
}

.c2-session-host {
    font-weight: 700;
    font-size: 13px;
    color: var(--c2-text);
    line-height: 1.35;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.c2-session-status {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 700;
    flex-shrink: 0;
}

.c2-session-status.active   { background: var(--c2-green-dim); color: var(--c2-green); }
.c2-session-status.sleeping { background: var(--c2-amber-dim); color: var(--c2-amber); }
.c2-session-status.dead     { background: var(--c2-red-dim); color: var(--c2-red); }

.c2-session-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 6px;
}

.c2-session-chips--sub { margin-top: 4px; }

.c2-session-chip {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 999px;
    background: var(--c2-surface-alt);
    color: var(--c2-text-dim);
    border: 1px solid var(--c2-border);
    line-height: 1.4;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.c2-session-chip--mono {
    font-family: var(--c2-mono);
    font-size: 10px;
    letter-spacing: -0.02em;
}

.c2-session-chip--warn {
    background: var(--c2-amber-dim);
    color: #b45309;
    border-color: transparent;
}

.c2-session-chip--dim {
    font-weight: 500;
    color: var(--c2-text-muted);
    background: transparent;
    border-color: transparent;
    padding-left: 0;
    padding-right: 0;
}

.c2-session-meta {
    font-size: 12px;
    color: var(--c2-text-dim);
    line-height: 1.5;
}

.c2-session-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    min-height: 22px;
}

.c2-session-item-time {
    font-size: 11px;
    color: var(--c2-text-muted);
    flex: 1;
    min-width: 0;
}

.c2-session-card-delete {
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--c2-radius-xs);
    border: 1px solid var(--c2-border);
    background: var(--c2-surface-alt);
    color: var(--c2-text-dim);
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.c2-session-card-delete:hover {
    border-color: var(--c2-red);
    color: var(--c2-red);
    background: var(--c2-red-dim);
}

.c2-session-item.active .c2-session-card-delete {
    background: var(--c2-surface);
}

.c2-session-title h3 {
    font-size: 22px;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.c2-session-badge {
    font-size: 10px;
    padding: 3px 10px;
    border-radius: 999px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.c2-session-badge.active   { background: var(--c2-green-dim); color: var(--c2-green); }
.c2-session-badge.sleeping { background: var(--c2-amber-dim); color: var(--c2-amber); }
.c2-session-badge.dead     { background: var(--c2-red-dim); color: var(--c2-red); }

.c2-session-subtitle {
    font-size: 13px;
    color: var(--c2-text-dim);
    font-family: var(--c2-mono);
}

.c2-session-actions { display: flex; gap: 8px; }

/* Session Tabs */
.c2-session-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 12px;
    border-bottom: 1.5px solid var(--c2-border);
    padding-bottom: 0;
    flex-shrink: 0;
}

.c2-session-tabs--pills {
    gap: 4px;
    padding: 3px;
    margin-bottom: 10px;
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-sm);
    background: var(--c2-surface-alt);
    border-bottom: 1px solid var(--c2-border);
}

.c2-session-tabs--pills .c2-session-tab {
    flex: 1;
    text-align: center;
    padding: 6px 10px;
    border-radius: var(--c2-radius-xs);
    margin-bottom: 0;
    border: 1px solid transparent;
    background: transparent;
    transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.c2-session-tabs--pills .c2-session-tab:hover {
    background: rgba(255, 255, 255, 0.7);
    color: var(--c2-text);
}

.c2-session-tabs--pills .c2-session-tab.active {
    background: var(--c2-surface);
    color: var(--c2-accent);
    box-shadow: var(--c2-shadow-sm);
    border-color: var(--c2-border);
}

.c2-session-tab-content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.c2-tab-panel { display: none; }
.c2-tab-panel.active {
    flex: 1;
    min-height: 0;
}

#c2-tab-terminal.active {
    display: flex;
    flex-direction: column;
}

.c2-tab-panel.active:not(#c2-tab-terminal) {
    display: block;
    overflow-y: auto;
}

#c2-tab-tasks.active {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.c2-tab-panel--card.active {
    overflow-y: auto;
}

.c2-file-panel {
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-sm);
    background: var(--c2-surface);
    box-shadow: var(--c2-shadow-sm);
    overflow: hidden;
}

.c2-file-panel .c2-file-toolbar {
    margin-bottom: 0;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid var(--c2-border);
}

.c2-file-panel .c2-file-list {
    padding: 0 8px 8px;
}

#c2-session-tasks-list {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.c2-session-tab {
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    color: var(--c2-text-dim);
    border-bottom: 2px solid transparent;
    margin-bottom: -1.5px;
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: inherit;
    line-height: 1.35;
    outline: none;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.c2-session-tab:focus {
    outline: none;
}

.c2-session-tab:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.45);
    outline-offset: 1px;
}

.c2-session-tab:active {
    transform: none;
}

.c2-session-tab:hover {
    color: var(--c2-text);
}

.c2-session-tab.active {
    color: var(--c2-accent);
    border-bottom-color: var(--c2-accent);
}

/* ============================================================================
   Terminal
   ============================================================================ */

.c2-terminal-container {
    background: #0d1117;
    border-radius: var(--c2-radius) var(--c2-radius) 0 0;
    flex: 1;
    min-height: 200px;
    overflow: hidden;
    position: relative;
    border: 1.5px solid #1e293b;
    border-bottom: none;
}

.c2-terminal-container .xterm {
    height: 100%;
    padding: 4px 6px;
    box-sizing: border-box;
}

.c2-terminal-container .xterm-viewport {
    overflow-y: auto !important;
}

.c2-terminal-toolbar {
    flex-shrink: 0;
    display: flex;
    gap: 8px;
    padding: 10px 16px;
    background: #1e293b;
    border-radius: 0 0 var(--c2-radius) var(--c2-radius);
    align-items: center;
    border: 1.5px solid #1e293b;
    border-top: none;
}

.c2-terminal-status {
    margin-left: auto;
    font-size: 11px;
    color: #64748b;
    font-family: var(--c2-mono);
}

/* ============================================================================
   File Manager
   ============================================================================ */

.c2-file-toolbar {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--c2-surface-alt);
    border-radius: var(--c2-radius-sm);
    margin-bottom: 16px;
    align-items: center;
    border: 1px solid var(--c2-border);
}

.c2-path-breadcrumb {
    font-family: var(--c2-mono);
    font-size: 12px;
    color: var(--c2-text-dim);
    margin-left: auto;
    background: var(--c2-surface);
    padding: 5px 12px;
    border-radius: var(--c2-radius-xs);
    border: 1px solid var(--c2-border);
}

#c2-file-upload-btn.is-disabled,
#c2-file-upload-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    color: var(--c2-text-dim, #94a3b8);
    border-color: var(--c2-border, #e2e8f0);
}

.c2-file-upload-hint {
    font-size: 12px;
    color: #b45309;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: var(--c2-radius-xs, 4px);
    padding: 8px 12px;
    margin: -8px 0 12px;
    line-height: 1.5;
    word-break: break-word;
}

.c2-file-upload-hint[hidden] {
    display: none !important;
}

.c2-file-upload-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: -8px 0 12px;
    padding: 0 4px;
}

.c2-file-upload-progress[hidden] {
    display: none !important;
}

.c2-file-upload-progress-track {
    flex: 1;
    height: 4px;
    background: var(--c2-border);
    border-radius: 2px;
    overflow: hidden;
}

.c2-file-upload-progress-fill {
    height: 100%;
    width: 0;
    background: var(--c2-accent, #3b82f6);
    transition: width 0.2s ease;
}

.c2-file-upload-progress-label {
    font-size: 11px;
    color: var(--c2-text-dim);
    white-space: nowrap;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.c2-file-list {
    background: var(--c2-surface);
    border-radius: var(--c2-radius);
    border: 1px solid var(--c2-border);
    overflow: hidden;
}

.c2-file-table { width: 100%; border-collapse: collapse; }

.c2-file-table th {
    text-align: left;
    padding: 12px 18px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--c2-text-dim);
    background: var(--c2-surface-alt);
    font-weight: 700;
    border-bottom: 1px solid var(--c2-border);
}

.c2-file-table td {
    padding: 10px 18px;
    border-top: 1px solid var(--c2-border);
    font-size: 13px;
}

.c2-file-table tbody tr:hover td { background: var(--c2-surface-alt); }

.c2-file-name { display: flex; align-items: center; gap: 10px; }
.c2-file-icon { font-size: 16px; }

/* ============================================================================
   Task List
   ============================================================================ */

.c2-tasks-page-wrap {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.c2-tasks-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 4px 10px;
    border-bottom: 1px solid var(--c2-border);
}

.c2-tasks-select-all-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--c2-text-muted);
    cursor: pointer;
    user-select: none;
}

.c2-tasks-select-all-label input {
    cursor: pointer;
}

.c2-task-table-col-check {
    width: 44px;
    text-align: center;
    vertical-align: middle;
}

.c2-task-check-label {
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.c2-task-check-label input {
    cursor: pointer;
}

.c2-task-list-container {
    background: var(--c2-surface);
    border-radius: var(--c2-radius);
    border: 1px solid var(--c2-border);
    overflow-x: auto;
    overflow-y: visible;
}

/* 操作列：仅占按钮宽度，避免 100% 表格把余白摊到最右列 */
.c2-task-table th.c2-task-table-col-actions,
.c2-task-table td.c2-task-table-col-actions {
    width: 1%;
    white-space: nowrap;
    text-align: right;
    vertical-align: middle;
}

.c2-task-table-actions {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    flex-wrap: nowrap;
}

.c2-task-table-actions .btn-small,
.c2-task-table-actions .btn-sm {
    min-height: 30px;
    min-width: 52px;
    justify-content: center;
}

.c2-task-table { width: 100%; border-collapse: collapse; table-layout: auto; }

.c2-task-table th {
    text-align: left;
    padding: 12px 18px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--c2-text-dim);
    background: var(--c2-surface-alt);
    font-weight: 700;
    border-bottom: 1px solid var(--c2-border);
}

.c2-task-table td {
    padding: 12px 18px;
    border-top: 1px solid var(--c2-border);
    font-size: 13px;
}

.c2-task-table tbody tr:hover td { background: var(--c2-surface-alt); }

.c2-status-badge {
    font-size: 11px;
    padding: 3px 10px;
    border-radius: var(--c2-radius-xs);
    font-weight: 600;
    display: inline-block;
}

.c2-status-badge.queued    { background: #f1f5f9; color: #64748b; }
.c2-status-badge.sent      { background: var(--c2-accent-dim); color: var(--c2-accent); }
.c2-status-badge.running   { background: var(--c2-amber-dim); color: #b45309; }
.c2-status-badge.success   { background: var(--c2-green-dim); color: #047857; }
.c2-status-badge.failed    { background: var(--c2-red-dim); color: var(--c2-red); }
.c2-status-badge.cancelled { background: #f1f5f9; color: #94a3b8; }

.c2-task-item-compact {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--c2-border);
    gap: 12px;
    transition: background 0.1s;
}

.c2-task-item-compact:hover { background: var(--c2-surface-alt); }

/* Session detail — task history panel */
.c2-session-tasks-panel {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    height: 100%;
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-sm);
    background: var(--c2-surface);
    overflow: hidden;
    box-shadow: var(--c2-shadow-sm);
}

.c2-session-tasks-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--c2-border);
    background: linear-gradient(180deg, var(--c2-surface-alt) 0%, var(--c2-surface) 100%);
    flex-shrink: 0;
}

.c2-session-tasks-toolbar-title {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.c2-session-tasks-heading {
    font-size: 14px;
    font-weight: 700;
    color: var(--c2-text);
}

.c2-session-tasks-count {
    font-size: 11px;
    font-weight: 600;
    color: var(--c2-text-dim);
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--c2-surface-alt);
    border: 1px solid var(--c2-border);
    white-space: nowrap;
}

.c2-session-tasks-refresh {
    flex-shrink: 0;
}

.c2-session-tasks-rows {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.c2-session-task-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 12px;
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-xs);
    background: var(--c2-surface);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.c2-session-task-row:hover {
    border-color: var(--c2-border-hover);
    background: var(--c2-surface-alt);
    box-shadow: var(--c2-shadow-sm);
}

.c2-session-task-row.is-pending {
    border-color: rgba(59, 130, 246, 0.25);
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.04) 0%, var(--c2-surface) 40%);
}

.c2-session-task-row__main {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    flex: 1;
}

.c2-session-task-row__cmd {
    min-width: 0;
    flex: 1;
}

.c2-session-task-command {
    display: block;
    font-family: var(--c2-mono);
    font-size: 12px;
    color: var(--c2-text);
    line-height: 1.45;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.c2-session-task-command--muted {
    color: var(--c2-text-muted);
    font-family: inherit;
}

.c2-session-task-row__meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.c2-session-task-duration {
    font-family: var(--c2-mono);
    font-size: 11px;
    color: var(--c2-text-muted);
    min-width: 42px;
    text-align: right;
}

.c2-session-task-time {
    font-size: 11px;
    color: var(--c2-text-muted);
    min-width: 52px;
    text-align: right;
    white-space: nowrap;
}

.c2-session-task-view {
    min-width: 52px;
}

.c2-task-type-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    padding: 3px 8px;
    border-radius: var(--c2-radius-xs);
    font-size: 10px;
    font-weight: 700;
    text-transform: lowercase;
    letter-spacing: 0.02em;
    flex-shrink: 0;
    font-family: var(--c2-mono);
}

.c2-task-type-badge--shell {
    background: var(--c2-accent-dim);
    color: var(--c2-accent);
}

.c2-task-type-badge--fs {
    background: var(--c2-purple-dim);
    color: var(--c2-purple);
}

.c2-task-type-badge--control {
    background: var(--c2-amber-dim);
    color: #b45309;
}

.c2-task-type-badge--default {
    background: #f1f5f9;
    color: var(--c2-text-dim);
}

.c2-empty-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px 24px;
    color: var(--c2-text-dim);
    flex: 1;
}

.c2-empty-inline__icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    margin-bottom: 12px;
    background: var(--c2-accent-dim);
    border: 1px dashed rgba(59, 130, 246, 0.35);
    position: relative;
}

.c2-empty-inline__icon::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 14px;
    height: 14px;
    margin: -7px 0 0 -7px;
    border: 2px solid var(--c2-accent);
    border-radius: 3px;
    opacity: 0.55;
}

.c2-empty-inline__text {
    font-size: 13px;
    line-height: 1.5;
    max-width: 280px;
}

.c2-task-status-dot.running,
.c2-task-status-dot.sent,
.c2-task-status-dot.queued {
    animation: c2-task-pulse 1.4s ease-in-out infinite;
}

@keyframes c2-task-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 transparent; }
    50% { opacity: 0.65; box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12); }
}

.c2-task-status-dot.queued { animation-name: c2-task-pulse-muted; }
@keyframes c2-task-pulse-muted {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.45; }
}

@media (max-width: 1100px) {
    .c2-session-task-row {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .c2-session-task-row__meta {
        justify-content: flex-end;
        flex-wrap: wrap;
    }
}

.c2-task-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.c2-task-status-dot.queued    { background: #94a3b8; }
.c2-task-status-dot.sent      { background: var(--c2-accent); }
.c2-task-status-dot.running   { background: var(--c2-amber); }
.c2-task-status-dot.success   { background: var(--c2-green); }
.c2-task-status-dot.failed    { background: var(--c2-red); }
.c2-task-status-dot.cancelled { background: #94a3b8; }

/* ============================================================================
   Payload Page
   ============================================================================ */

.c2-payload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(440px, 1fr));
    gap: 24px;
    padding: 24px;
}

.c2-payload-card {
    background: var(--c2-surface);
    border: 1.5px solid var(--c2-border);
    border-radius: var(--c2-radius);
    padding: 32px;
    transition: all 0.25s;
}

.c2-payload-card:hover {
    box-shadow: var(--c2-shadow-md);
    border-color: var(--c2-border-hover);
}

.c2-payload-card h3 {
    font-size: 18px;
    margin-bottom: 6px;
    color: var(--c2-text);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.c2-payload-card h3 .c2-payload-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--c2-radius-sm);
    font-size: 16px;
    flex-shrink: 0;
}

.c2-payload-desc {
    font-size: 13px;
    color: var(--c2-text-dim);
    margin-bottom: 28px;
    line-height: 1.6;
}

.c2-oneliner-output {
    background: #0f172a;
    color: #a5f3fc;
    padding: 16px 18px;
    border-radius: var(--c2-radius-sm);
    font-family: var(--c2-mono);
    font-size: 12px;
    word-break: break-all;
    margin-top: 16px;
    white-space: pre-wrap;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid #1e293b;
    line-height: 1.6;
    cursor: pointer;
    transition: border-color 0.2s;
}

.c2-oneliner-output:hover { border-color: var(--c2-accent); }

.c2-build-success {
    margin-top: 16px;
    padding: 16px 18px;
    background: var(--c2-green-dim);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--c2-radius-sm);
    color: #047857;
    font-size: 13px;
    line-height: 1.8;
}

/* ============================================================================
   Events
   ============================================================================ */

.c2-events-page-wrap {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.c2-events-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 4px 10px;
    border-bottom: 1px solid var(--c2-border);
    margin-bottom: 0;
}

.c2-events-select-all-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--c2-text-muted);
    cursor: pointer;
    user-select: none;
}

.c2-events-select-all-label input {
    cursor: pointer;
}

.c2-event-check-label {
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    padding-top: 4px;
    cursor: pointer;
}

.c2-event-check-label input {
    cursor: pointer;
}

.c2-event-row-delete {
    flex-shrink: 0;
    align-self: flex-start;
    margin-top: 2px;
    padding: 4px 10px;
    font-size: 14px;
    line-height: 1.2;
}

.c2-event-list {
    background: var(--c2-surface);
    border-radius: var(--c2-radius);
    border: 1px solid var(--c2-border);
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

.c2-event-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--c2-border);
    transition: background 0.1s;
}

.c2-event-item:hover { background: var(--c2-surface-alt); }
.c2-event-item:last-child { border-bottom: none; }

.c2-event-level {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.c2-event-level.info     { background: var(--c2-accent); }
.c2-event-level.warn     { background: var(--c2-amber); }
.c2-event-level.critical { background: var(--c2-red); }

.c2-event-content { flex: 1; }

.c2-event-message {
    font-size: 13px;
    color: var(--c2-text);
    margin-bottom: 3px;
    font-weight: 500;
}

.c2-event-meta {
    font-size: 11px;
    color: var(--c2-text-muted);
    font-family: var(--c2-mono);
}

/* ============================================================================
   Profile
   ============================================================================ */

.c2-profile-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    padding: 24px;
}

.c2-profile-list:has(.c2-empty) {
    display: flex;
}

.c2-profile-card {
    background: var(--c2-surface);
    border: 1.5px solid var(--c2-border);
    border-radius: var(--c2-radius);
    padding: 24px;
    transition: all 0.2s;
}

.c2-profile-card:hover {
    box-shadow: var(--c2-shadow-md);
    border-color: var(--c2-border-hover);
}

.c2-profile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.c2-profile-header h4 {
    font-size: 15px;
    color: var(--c2-text);
    font-weight: 700;
}

.c2-profile-info {
    font-size: 12px;
    color: var(--c2-text-dim);
    line-height: 2;
}

.c2-profile-info strong {
    color: var(--c2-text);
    font-weight: 600;
    margin-right: 4px;
}

/* ============================================================================
   Session Info Panel (compact)
   ============================================================================ */

.c2-session-info-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0;
    max-width: 920px;
}

.c2-session-info-block {
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-xs);
    background: var(--c2-surface);
    overflow: hidden;
}

.c2-session-info-block__head {
    padding: 5px 10px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--c2-text-dim);
    background: var(--c2-surface-alt);
    border-bottom: 1px solid var(--c2-border);
}

.c2-session-info-dl {
    margin: 0;
    display: flex;
    flex-direction: column;
}

.c2-session-info-dl__row {
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 4px 10px;
    border-bottom: 1px solid var(--c2-border);
    min-height: 26px;
}

.c2-session-info-dl__row--full {
    grid-template-columns: 100px minmax(0, 1fr);
}

.c2-session-info-dl__row:last-child {
    border-bottom: none;
}

.c2-session-info-dl__label {
    margin: 0;
    font-size: 11px;
    font-weight: 600;
    color: var(--c2-text-muted);
    line-height: 1.3;
    white-space: nowrap;
}

.c2-session-info-dl__value {
    margin: 0;
    font-size: 12px;
    font-weight: 500;
    color: var(--c2-text);
    line-height: 1.35;
    word-break: break-all;
}

.c2-session-info-dl__value.is-mono {
    font-family: var(--c2-mono);
    font-size: 11px;
}

.c2-session-info-dl__value.is-accent {
    color: var(--c2-accent);
    font-weight: 600;
}

.c2-session-info-dl__value.is-warn {
    color: #b45309;
    font-weight: 700;
}

.c2-session-info-block--note .c2-session-info-note {
    padding: 6px 10px 8px;
    font-size: 12px;
    line-height: 1.5;
    color: var(--c2-text-dim);
    min-height: 0;
    white-space: pre-wrap;
    word-break: break-word;
}

@media (max-width: 900px) {
    .c2-session-hero {
        flex-direction: column;
    }

    .c2-session-hero__side {
        width: 100%;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .c2-session-info-dl {
        display: flex;
    }

    .c2-session-info-dl__row {
        grid-template-columns: 84px minmax(0, 1fr);
    }
}

/* Legacy info grid (profiles etc.) */
.c2-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0;
    background: var(--c2-surface);
    border-radius: var(--c2-radius);
    border: 1px solid var(--c2-border);
    padding: 4px 24px;
}

.c2-info-grid > div {
    padding: 12px 0;
    border-bottom: 1px solid var(--c2-border);
    font-size: 13px;
    color: var(--c2-text-dim);
}

.c2-info-grid > div:last-child { border-bottom: none; }
.c2-info-grid > div strong {
    color: var(--c2-text);
    font-weight: 600;
    margin-right: 8px;
    display: inline-block;
    min-width: 100px;
}

/* ============================================================================
   Task Detail Modal
   ============================================================================ */

.c2-modal.c2-modal--wide {
    max-width: 720px;
}

.c2-task-modal-header {
    align-items: flex-start;
}

.c2-task-modal-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.c2-task-modal-heading h3 {
    margin: 0;
}

.c2-task-detail {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.c2-task-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.c2-task-kv {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 12px 14px;
    background: var(--c2-surface-alt);
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-sm);
}

.c2-task-kv__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--c2-text-muted);
}

.c2-task-kv__value {
    font-size: 13px;
    font-weight: 500;
    color: var(--c2-text);
    word-break: break-all;
    line-height: 1.45;
}

.c2-task-kv__value--mono {
    font-family: var(--c2-mono);
    font-size: 12px;
    color: var(--c2-text-dim);
}

.c2-task-kv__value--accent {
    font-family: var(--c2-mono);
    font-weight: 600;
    color: var(--c2-accent);
}

.c2-task-timeline {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.06), rgba(59, 130, 246, 0.02));
    border: 1px solid rgba(59, 130, 246, 0.14);
    border-radius: var(--c2-radius-sm);
}

.c2-task-time-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.c2-task-time-card:not(:last-child) {
    padding-right: 10px;
    border-right: 1px solid rgba(59, 130, 246, 0.12);
}

.c2-task-code-section,
.c2-task-error-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.c2-task-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.c2-task-code-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--c2-text-dim);
}

.c2-task-error {
    color: var(--c2-red);
    padding: 14px 16px;
    background: var(--c2-red-dim);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: var(--c2-radius-sm);
    font-size: 13px;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
}

.c2-task-result-pre,
.c2-task-command-pre {
    background: #0f172a;
    color: #e2e8f0;
    padding: 14px 16px;
    border-radius: var(--c2-radius-sm);
    overflow-x: auto;
    font-family: var(--c2-mono);
    font-size: 12px;
    margin: 0;
    max-height: 360px;
    overflow-y: auto;
    border: 1px solid #1e293b;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

.c2-task-command-pre {
    max-height: 140px;
}

.c2-task-command-cell {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--c2-mono);
    font-size: 12px;
    color: var(--c2-text-muted, #64748b);
}

.c2-task-item-compact .c2-task-command {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--c2-mono);
    font-size: 11px;
    color: var(--c2-text-muted, #64748b);
}

/* ============================================================================
   Forms
   ============================================================================ */

.c2-form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 4px;
}

.c2-form-group { margin-bottom: 20px; }

.c2-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--c2-text);
}

.c2-form-group .form-hint {
    font-size: 12px;
    color: var(--c2-text-muted);
    margin-top: 6px;
}

/* ============================================================================
   Modal
   ============================================================================ */

#c2-toast-container {
    z-index: 10100 !important;
}

.c2-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.52);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10050;
    padding: 24px;
    animation: c2-fade-in 0.15s ease-out;
}

@keyframes c2-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.c2-modal {
    background: var(--c2-surface);
    border-radius: 16px;
    width: 100%;
    max-width: 540px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--c2-shadow-lg);
    border: 1px solid var(--c2-border);
    animation: c2-slide-up 0.18s ease-out;
    contain: layout style paint;
}

@keyframes c2-slide-up {
    from { opacity: 0; transform: translateY(12px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.c2-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px 20px;
    border-bottom: 1px solid var(--c2-border);
}

.c2-modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--c2-text);
}

/* .c2-modal-close 样式见 style.css 统一关闭按钮 */

.c2-modal-body { padding: 24px 28px; }

.c2-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 28px;
    border-top: 1px solid var(--c2-border);
    background: var(--c2-surface-alt);
    border-radius: 0 0 16px 16px;
}

/* Sleep settings modal */
.c2-modal.c2-modal--sleep {
    max-width: 460px;
    padding: 0;
    overflow: hidden;
}

.c2-sleep-modal {
    display: flex;
    flex-direction: column;
}

.c2-sleep-modal__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--c2-border);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, var(--c2-surface) 70%);
}

.c2-sleep-modal__title-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.c2-sleep-modal__icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c2-accent);
    background: var(--c2-accent-dim);
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.c2-sleep-modal__icon svg {
    width: 22px;
    height: 22px;
    display: block;
}

.c2-sleep-modal__title {
    margin: 0;
    font-size: 17px;
    font-weight: 800;
    color: var(--c2-text);
    line-height: 1.25;
}

.c2-sleep-modal__host {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--c2-text-dim);
    font-family: var(--c2-mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 280px;
}

.c2-sleep-modal__current {
    padding: 8px 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--c2-text-dim);
    background: var(--c2-surface-alt);
    border-bottom: 1px solid var(--c2-border);
}

.c2-sleep-modal__body {
    padding: 16px 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.c2-sleep-field__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.c2-sleep-field__head label {
    font-size: 13px;
    font-weight: 600;
    color: var(--c2-text);
}

.c2-sleep-field__value {
    font-size: 12px;
    font-weight: 700;
    color: var(--c2-accent);
    font-family: var(--c2-mono);
}

.c2-sleep-field__control {
    display: grid;
    grid-template-columns: 1fr 72px;
    gap: 10px;
    align-items: center;
}

.c2-sleep-range {
    width: 100%;
    height: 6px;
    accent-color: var(--c2-accent);
    cursor: pointer;
}

.c2-sleep-number {
    width: 100%;
    padding: 6px 8px;
    font-size: 13px;
    font-family: var(--c2-mono);
    font-weight: 600;
    text-align: center;
    color: var(--c2-text);
    background: var(--c2-surface);
    border: 1px solid var(--c2-border);
    border-radius: var(--c2-radius-xs);
    outline: none;
}

.c2-sleep-number:focus {
    border-color: var(--c2-accent);
    box-shadow: 0 0 0 3px var(--c2-accent-dim);
}

.c2-sleep-presets {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.c2-sleep-presets__label {
    font-size: 11px;
    font-weight: 600;
    color: var(--c2-text-muted);
    margin-right: 2px;
}

.c2-sleep-preset {
    border: 1px solid var(--c2-border);
    background: var(--c2-surface);
    color: var(--c2-text-dim);
    font-size: 11px;
    font-weight: 700;
    font-family: var(--c2-mono);
    padding: 4px 10px;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.c2-sleep-preset:hover {
    border-color: var(--c2-accent);
    color: var(--c2-accent);
}

.c2-sleep-preset.is-active {
    background: var(--c2-accent-dim);
    border-color: var(--c2-accent);
    color: var(--c2-accent);
}

.c2-sleep-modal__preview {
    padding: 10px 12px;
    border-radius: var(--c2-radius-xs);
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.08), rgba(59, 130, 246, 0.06));
    border: 1px solid rgba(59, 130, 246, 0.18);
    font-size: 12px;
    font-weight: 600;
    color: var(--c2-text);
    font-family: var(--c2-mono);
}

.c2-sleep-modal__hint {
    margin: 0;
    font-size: 11px;
    line-height: 1.55;
    color: var(--c2-text-muted);
}

.c2-sleep-modal__footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px 18px;
    border-top: 1px solid var(--c2-border);
    background: var(--c2-surface-alt);
}

/* ============================================================================
   Toolbar
   ============================================================================ */

.c2-toolbar {
    display: flex;
    gap: 12px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--c2-border);
    align-items: center;
    flex-wrap: wrap;
}

/* ============================================================================
   Responsive
   ============================================================================ */

@media (max-width: 768px) {
    .c2-session-layout { flex-direction: column; height: auto; min-height: calc(100vh - 140px); }
    .c2-session-sidebar-wrap {
        width: 100%;
        max-width: none;
        min-width: 0;
        max-height: 260px;
        border-right: none;
        border-bottom: 1px solid var(--c2-border);
    }
    .c2-payload-grid { grid-template-columns: 1fr; }
    .c2-listener-grid { grid-template-columns: 1fr; padding: 16px; }
    .c2-task-detail-grid { grid-template-columns: 1fr; }
    .c2-task-timeline { grid-template-columns: 1fr; }
    .c2-task-time-card:not(:last-child) {
        padding-right: 0;
        padding-bottom: 10px;
        border-right: none;
        border-bottom: 1px solid rgba(59, 130, 246, 0.12);
    }
    .c2-modal.c2-modal--wide { max-width: 100%; }
}