/* Modern Full Dark Theme */
:root {
    --bg-main: #0f172a;
    /* Main background (very dark blue-gray) */
    --bg-panel: #1e293b;
    /* Sidebar/Panel background */
    --bg-input: #334155;
    /* Input field background */
    --border-color: #475569;
    /* Border color */
    --text-main: #f1f5f9;
    /* Main text color (almost white) */
    --text-muted: #94a3b8;
    /* Muted text color */
    --primary: #3b82f6;
    /* Primary accent (blue) */
    --primary-hover: #60a5fa;
    --success: #10b981;
    /* Success/Active (green) */
    --warning: #f59e0b;
    /* Warning/Selected (amber) */
    --danger: #ef4444;
    /* Danger/Conflict (red) */

    --timeline-header: #1e293b;
    --timeline-track: #0f172a;
    --timeline-grid: #334155;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-main);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

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

/* Top Bar */
.top-bar {
    background-color: #020617;
    /* Darkest shade */
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.top-bar h1 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
}

.badge {
    background-color: var(--primary);
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    margin-left: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.top-bar .left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.top-bar .right {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    cursor: pointer;
    width: 16px;
    height: 16px;
}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--primary);
    border-color: var(--primary);
}

button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    background-color: var(--bg-panel);
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
}

button:hover {
    background-color: var(--bg-input);
    border-color: var(--text-muted);
}

button.primary {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
}

button.primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

button.active {
    background-color: var(--success);
    border-color: var(--success);
    color: white;
}

/* Main Layout */
.layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 340px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.panel {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.panel h2 {
    margin-top: 0;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.5rem;
}

.field {
    margin-bottom: 1rem;
}

.field label {
    display: block;
    font-size: 0.75rem;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
    font-weight: 500;
}

.field input[type="text"],
.field input[type="number"],
.field select,
.field textarea {
    width: 100%;
    padding: 0.5rem;
    background-color: var(--bg-main);
    /* Darker input bg */
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.85rem;
    box-sizing: border-box;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.field input[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Timeline Container */
.timeline-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--bg-main);
    position: relative;
}

.timeline-header {
    height: 40px;
    background-color: var(--timeline-header);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.timeline-tick {
    position: absolute;
    bottom: 0;
    font-size: 0.7rem;
    color: var(--text-muted);
    border-left: 1px solid var(--border-color);
    padding-left: 4px;
    height: 50%;
    display: flex;
    align-items: flex-end;
    padding-bottom: 4px;
}

.timeline {
    flex: 1;
    overflow: auto;
    position: relative;
    background-color: var(--timeline-track);
}

.timeline-root {
    position: relative;
    min-height: 100%;
}

.timeline-root.creation-mode {
    cursor: crosshair;
}

.timeline-row {
    position: relative;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    transition: background-color 0.1s;
}

.timeline-row-label {
    width: 180px;
    min-width: 180px;
    max-width: 180px;
    flex-shrink: 0;
    background-color: var(--bg-panel);
    border-right: 2px solid var(--border-color);
    padding: 0 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    position: sticky;
    left: 0;
    z-index: 10;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    box-shadow: 1px 0 5px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
}

.timeline-row-track {
    flex: 1;
    position: relative;
    background-image: linear-gradient(to right, var(--timeline-grid) 1px, transparent 1px);
    background-size: 50px 100%;
    background-position: 0 0;
}

/* Blocks */
.timeline-block {
    position: absolute;
    height: 24px;
    background-color: var(--primary);
    border-radius: 3px;
    color: white;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0 8px;
    overflow: hidden;
    white-space: nowrap;
    cursor: grab;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.1s, box-shadow 0.1s;
}

.timeline-block:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    z-index: 5;
    filter: brightness(1.1);
}

.timeline-block.timeline-block-selected {
    border: 2px solid var(--warning);
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.3);
    z-index: 10;
}

.timeline-block.timeline-block-active {
    box-shadow: 0 0 0 2px var(--success);
    border-color: var(--success);
}

.timeline-block.timeline-block-conflict {
    background-color: var(--danger) !important;
}

.timeline-block-label {
    pointer-events: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.resize-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 8px;
    cursor: col-resize;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.2s;
}

.timeline-block:hover .resize-handle {
    opacity: 1;
}

.resize-handle.left {
    left: 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.3), transparent);
}

.resize-handle.right {
    right: 0;
    background: linear-gradient(to left, rgba(255, 255, 255, 0.3), transparent);
}

/* Cursors */
.time-cursor {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #f97316;
    /* Orange */
    z-index: 20;
    pointer-events: none;
    box-shadow: 0 0 8px rgba(249, 115, 22, 0.4);
}

.time-cursor::after {
    content: '';
    position: absolute;
    top: 0;
    left: -4px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #f97316;
}

.hover-cursor {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: rgba(255, 255, 255, 0.1);
    z-index: 15;
    pointer-events: none;
    display: none;
}

/* Hover Effects */
.timeline-row-hover {
    background-color: rgba(59, 130, 246, 0.1);
}

.timeline-row-hover .timeline-row-label {
    background-color: #1e3a8a;
    color: #60a5fa;
    border-right-color: #3b82f6;
}

.timeline-row-track:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.track-hover-highlight {
    background: rgba(96, 165, 250, 0.1) !important;
}

/* New UI Elements */
.info-box {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
    min-height: 24px;
}

.conditions-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.conditions-available,
.conditions-selected {
    display: flex;
    flex-direction: column;
}

.conditions-available small,
.conditions-selected small {
    display: block;
    margin-bottom: 6px;
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 600;
}

.conditions-available select {
    background-color: var(--bg-main);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px;
}

.cond-list {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-main);
    overflow-y: auto;
    padding: 4px;
}

.cond-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.8rem;
    color: var(--text-main);
}

.cond-item:last-child {
    border-bottom: none;
}

.cond-item span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: 8px;
}

.cond-item input,
.cond-item select {
    width: 80px !important;
    padding: 2px 4px !important;
    font-size: 0.75rem;
    background-color: rgba(0, 0, 0, 0.3) !important;
    border: 1px solid var(--border-color) !important;
    color: white !important;
    height: 22px;
    border-radius: 3px;
}

.cond-item input[type="text"] {
    width: 100px !important;
}

.cond-item select {
    cursor: pointer;
    width: 70px !important;
}

.cond-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.actor-input-group {
    position: relative;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-panel);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    width: 500px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-main);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.modal-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.actor-color-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.actor-color-item:last-child {
    border-bottom: none;
}

.actor-color-label {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-main);
}

.actor-color-picker {
    width: 60px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
    border: 2px solid var(--bg-main);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}