/* ==========================================================================
   Digital Timing Diagram Studio (WaveDrom Editor) - Modern Dark & Tech Theme
   ========================================================================== */

.te-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
}

/* Master Control Header */
.te-toolbar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.te-toolbar-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.te-select,
.te-input {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    outline: none;
    transition: all 0.2s ease;
}

.te-select:focus,
.te-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.te-btn {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 7px 13px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    user-select: none;
}

.te-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #4b5563;
    color: #fff;
}

.te-btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

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

.te-btn-accent {
    background: #059669;
    border-color: #059669;
    color: #ffffff;
}

.te-btn-accent:hover {
    background: #10b981;
    border-color: #10b981;
}

.te-btn-sm {
    padding: 4px 8px;
    font-size: 0.78rem;
}

/* Two Column Split Workspace */
.te-workspace {
    display: grid;
    grid-template-columns: 460px minmax(0, 1fr);
    gap: var(--spacing-md);
    min-height: 640px;
}

@media (max-width: 1100px) {
    .te-workspace {
        grid-template-columns: 1fr;
    }
}

/* Left Editor Panel */
.te-editor-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.te-panel-header {
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.te-tab-group {
    display: flex;
    gap: 4px;
    background: var(--bg-dark);
    padding: 3px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.te-tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 5px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.te-tab-btn.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}

/* Code Mode */
.te-code-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 380px;
}

.te-code-textarea {
    flex: 1;
    width: 100%;
    height: 100%;
    min-height: 420px;
    background: #0a0d14;
    border: none;
    color: #f1f5f9;
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    font-size: 0.86rem;
    line-height: 1.5;
    padding: 14px 16px;
    resize: vertical;
    outline: none;
    tab-size: 2;
    white-space: pre;
    overflow-x: auto;
}

.te-code-textarea:focus {
    box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.4);
}

.te-quick-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.7);
    border-top: 1px solid var(--border);
}

.te-chip {
    background: #1e293b;
    color: #cbd5e1;
    border: 1px solid #334155;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    transition: all 0.15s ease;
}

.te-chip:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.te-status-bar {
    padding: 6px 14px;
    background: #0b0f19;
    border-top: 1px solid var(--border);
    font-size: 0.76rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.te-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.72rem;
    font-weight: 500;
}

.te-status-badge.valid {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.te-status-badge.error {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Visual Builder Mode */
.te-visual-wrapper {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
    max-height: 580px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.te-visual-group {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid #1e293b;
    border-left: 3px solid #3b82f6;
    border-radius: 8px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 4px;
}

.te-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding-bottom: 6px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.te-group-title-input {
    background: #020617;
    border: 1px solid #334155;
    color: #60a5fa;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 4px 8px;
    border-radius: 4px;
    flex: 1;
}

.te-group-children {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-left: 8px;
}

.te-signal-row {
    background: #0f172a;
    border: 1px solid #1e293b;
    border-radius: 8px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: border-color 0.2s ease;
}

.te-signal-row:hover {
    border-color: #3b82f6;
}

.te-signal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.te-signal-name-input {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: #f8fafc;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    width: 140px;
}

.te-signal-wave-input {
    flex: 1;
    background: #020617;
    border: 1px solid #334155;
    color: #38bdf8;
    font-family: 'JetBrains Mono', monospace;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.te-wave-bricks {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.te-brick-btn {
    background: #1e293b;
    color: #94a3b8;
    border: 1px solid #334155;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    transition: all 0.15s ease;
}

.te-brick-btn:hover {
    background: #334155;
    color: #ffffff;
}

.te-brick-btn.active-brick {
    background: rgba(59, 130, 246, 0.2);
    border-color: #3b82f6;
    color: #60a5fa;
}

.te-signal-props {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

/* Right Timing Diagram Canvas Panel */
.te-canvas-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.te-canvas-toolbar {
    padding: 8px 14px;
    background: rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.te-measure-readout {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 10px;
    background: #030712;
    border: 1px solid #1f2937;
    border-radius: 6px;
    font-size: 0.78rem;
    font-family: 'JetBrains Mono', monospace;
    color: #38bdf8;
}

.te-canvas-viewport {
    flex: 1;
    min-height: 480px;
    background: #090d16;
    overflow: auto;
    position: relative;
    padding: 24px;
    cursor: default;
    display: block;
    scrollbar-width: thin;
    scrollbar-color: #334155 #090d16;
}

.te-canvas-viewport::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.te-canvas-viewport::-webkit-scrollbar-track {
    background: #090d16;
}

.te-canvas-viewport::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 4px;
}

.te-canvas-viewport::-webkit-scrollbar-thumb:hover {
    background: #475569;
}

.te-canvas-viewport.mode-pan {
    cursor: grab !important;
}

.te-canvas-viewport.mode-pan:active {
    cursor: grabbing !important;
}

.te-canvas-viewport.mode-measure {
    cursor: crosshair !important;
}

.te-canvas-viewport.skin-default {
    background: #ffffff;
}

.te-canvas-viewport.skin-blueprint {
    background: #0f2744;
}

.te-canvas-viewport.skin-cyberpunk {
    background: #05050d;
}

/* SVG Rendering Stage Outer & Wrapper */
.te-svg-stage-outer {
    display: inline-block;
    position: relative;
    margin: 0;
}

.te-svg-stage {
    position: relative;
    display: block;
}

.te-svg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    user-select: none;
    transform-origin: 0 0;
}

.te-svg-element {
    display: block;
    overflow: visible;
}

/* Bottom Pan & Timeline Activity Slider Bar */
.te-timeline-bar {
    padding: 8px 14px;
    background: #0b0f19;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.te-pan-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: #1e293b;
    outline: none;
    cursor: pointer;
    transition: background 0.2s;
}

.te-pan-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid #ffffff;
    cursor: pointer;
    box-shadow: 0 0 6px rgba(59, 130, 246, 0.5);
    transition: transform 0.1s;
}

.te-pan-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

/* Cursor Measurement Overlay */
.te-cursor-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(239, 68, 68, 0.8);
    pointer-events: none;
    z-index: 10;
}

.te-cursor-mark-a {
    background: rgba(59, 130, 246, 0.9);
    border-left: 1px dashed #60a5fa;
}

.te-cursor-mark-b {
    background: rgba(16, 185, 129, 0.9);
    border-left: 1px dashed #34d399;
}

/* Cheat Sheet Modal */
.te-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.te-modal-backdrop.show {
    display: flex;
}

.te-modal-card {
    background: #111827;
    border: 1px solid #374151;
    border-radius: 12px;
    width: 100%;
    max-width: 820px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.te-modal-header {
    padding: 14px 20px;
    border-bottom: 1px solid #1f2937;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.te-modal-body {
    padding: 20px;
    overflow-y: auto;
    font-size: 0.85rem;
    color: #cbd5e1;
    line-height: 1.6;
}

.te-syntax-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 0.82rem;
}

.te-syntax-table th,
.te-syntax-table td {
    padding: 8px 12px;
    border: 1px solid #334155;
    text-align: left;
}

.te-syntax-table th {
    background: #1e293b;
    color: #93c5fd;
    font-weight: 600;
}

.te-syntax-table tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.te-syntax-code {
    background: #030712;
    color: #38bdf8;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
}

/* Toast Message */
.te-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #1e293b;
    border: 1px solid #3b82f6;
    color: #ffffff;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 0.85rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    z-index: 10000;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.25s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.te-toast.show {
    opacity: 1;
    transform: translateY(0);
}