:root {
    --bg: #f5f5f7;
    --bg-elevated: #ffffff;
    --border-subtle: #e0e0e7;
    --border-strong: #c7c7d5;
    --text-main: #111827;
    --text-muted: #6b7280;
    --accent: #2563eb;
    --accent-soft: rgba(37, 99, 235, 0.06);
    --danger: #dc2626;
    --danger-soft: rgba(220, 38, 38, 0.08);
    --radius-lg: 16px;
    --radius-md: 10px;
    --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.12);
    --gap: 16px;
    --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
    margin: 0;
    font-family: var(--font-base);
    background: radial-gradient(circle at top left, #e5edff 0, #f5f5f7 40%, #f5f5f7 100%);
    color: var(--text-main);
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    backdrop-filter: blur(12px);
    background: rgba(248, 250, 252, 0.9);
    border-bottom: 1px solid rgba(148, 163, 184, 0.4);
    position: sticky;
    top: 0;
    z-index: 20;
}

.app-header-left h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 650;
}

.app-header-sub {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
}

.app-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
}

.lang-switch select {
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    padding: 4px 10px;
    background: #fff;
    font-size: 13px;
}

.app-main {
    flex: 1;
    display: grid;
    grid-template-columns: 280px minmax(0, 1.4fr) 460px;
    gap: var(--gap);
    padding: 16px 24px 24px;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
}

.sidebar-right {
    max-height: calc(100vh - 96px);
}

.center {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
}

.panel {
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(148, 163, 184, 0.25);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel.small {
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.04);
}

.panel-header {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-title {
    font-size: 14px;
    font-weight: 600;
}

.panel-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.panel-body {
    padding: 12px 14px 14px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
}

.form-grid label span {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 3px;
}

.form-grid input,
.form-grid textarea,
.form-grid select {
    width: 100%;
    font-family: inherit;
    font-size: 13px;
    padding: 7px 10px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    background: #fff;
}

.form-grid textarea {
    resize: vertical;
}

.full-width {
    grid-column: 1 / -1;
}

.btn {
    font-family: inherit;
    font-size: 13px;
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    background: #fff;
    padding: 6px 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn.secondary {
    background: var(--accent-soft);
    border-color: rgba(37, 99, 235, 0.3);
}

.btn.ghost {
    background: transparent;
}

.btn.icon-btn {
    width: 24px;
    height: 24px;
    border-radius: 999px;
    padding: 0;
    justify-content: center;
    font-size: 16px;
}

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

.btn:active {
    transform: translateY(1px);
}

.file-btn input {
    display: none;
}

.list {
    max-height: 260px;
    overflow-y: auto;
}

.list-projects {
    max-height: 220px;
}

.list-item {
    padding: 7px 10px;
    border-radius: 10px;
    margin: 4px 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
}

.list-item.active {
    background: var(--accent-soft);
    border: 1px solid rgba(37, 99, 235, 0.4);
}

.list-item .item-label-main {
    font-weight: 500;
}

.list-item .item-label-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.list-controls {
    display: flex;
    gap: 4px;
}

.chip-list {
    padding: 8px 10px 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.chip {
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 12px;
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    background: #fff;
}

.chip.active {
    background: var(--accent-soft);
    border-color: rgba(37, 99, 235, 0.5);
}

.chip .chip-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    display: inline-block;
    margin-right: 5px;
}

.tabs {
    display: flex;
    gap: 6px;
}

.tab {
    border-radius: 999px;
    padding: 5px 12px;
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid transparent;
    font-size: 13px;
    cursor: pointer;
}

.tab.active {
    background: #fff;
    border-color: rgba(148, 163, 184, 0.8);
}

.tab-content {
    margin-top: 10px;
}

.hidden {
    display: none;
}

.split {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr);
    gap: 10px;
}

.panel-detail.empty {
    min-height: 220px;
}

.empty-message {
    font-size: 13px;
    color: var(--text-muted);
}

.code-panel {
    height: 100%;
}

.code-output {
    margin: 0;
    padding: 10px 12px 12px;
    font-size: 12px;
    line-height: 1.45;
    background: #020617;
    color: #e5e7eb;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    overflow: auto;
    max-height: calc(100vh - 140px);
}

.code-view-select {
    font-size: 12px;
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    padding: 4px 10px;
    background: #fff;
}

.warning-pill {
    font-size: 11px;
    border-radius: 999px;
    background: #fef9c3;
    border: 1px solid #facc15;
    color: #854d0e;
    padding: 5px 10px;
}

/* Overlay */

.overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

.overlay.hidden {
    pointer-events: none;
    opacity: 0;
}

.overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(6px);
}

.overlay-dialog {
    position: relative;
    background: #f9fafb;
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(148, 163, 184, 0.7);
    width: min(980px, 96vw);
    max-height: 86vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.overlay-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.overlay-title {
    margin: 0;
    font-size: 17px;
}

.overlay-sub {
    margin: 3px 0 0;
    font-size: 12px;
    color: var(--text-muted);
}

.overlay-body {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    min-height: 320px;
}

.overlay-nav {
    border-right: 1px solid var(--border-subtle);
    padding: 10px 10px 10px 12px;
    background: #f3f4f6;
    overflow-y: auto;
}

.overlay-nav-item {
    padding: 5px 7px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
}

.overlay-nav-item.active {
    background: #fff;
    border: 1px solid var(--border-subtle);
}

.overlay-content {
    padding: 10px 14px 12px;
    overflow: auto;
    font-size: 13px;
}

.overlay-content h1,
.overlay-content h2,
.overlay-content h3 {
    margin-top: 10px;
    margin-bottom: 4px;
    font-size: 14px;
}

.overlay-content pre {
    background: #020617;
    color: #e5e7eb;
    padding: 8px 10px;
    border-radius: 10px;
    overflow: auto;
    font-size: 12px;
}

/* Event, command, service small badges */

.badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 2px 6px;
    font-size: 10px;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    background: #fff;
}

.badge.warn {
    border-color: #f97316;
    color: #b45309;
}

.badge.ok {
    border-color: rgba(22, 163, 74, 0.7);
    color: #166534;
}

/* Small action/condition list styling */

.action-list,
.condition-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 6px;
}

.action-item,
.condition-item {
    border-radius: 10px;
    border: 1px solid var(--border-subtle);
    padding: 6px 8px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr) auto;
    gap: 6px;
    align-items: center;
    background: #f9fafb;
}

.action-item select,
.condition-item select {
    font-size: 12px;
}

.action-item textarea,
.condition-item textarea,
.action-item input,
.condition-item input {
    font-size: 12px;
    padding: 4px 7px;
    border-radius: 7px;
    border: 1px solid var(--border-subtle);
    background: #fff;
}

.action-item .item-controls,
.condition-item .item-controls {
    display: flex;
    gap: 4px;
}

@media (max-width: 1180px) {
    .app-main {
        grid-template-columns: 260px minmax(0, 1.3fr) 380px;
    }
}

@media (max-width: 980px) {
    .app-main {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }
    .sidebar-right {
        max-height: none;
    }
}