/* Logic Gate Simulator - Main Styles */

/* CSS Variables */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #4b5563;
    --primary-color: #60a5fa;
    --primary-hover: #3b82f6;
    --success-color: #34d399;
    --error-color: #f87171;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.app-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-center {
    display: flex;
    gap: 0.5rem;
}

.toolbar-group {
    display: flex;
    gap: 0.25rem;
    padding: 0.25rem;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
}

.toolbar-divider {
    width: 1px;
    background: var(--border-color);
    margin: 0 0.5rem;
}

.tool-btn,
.icon-btn {
    background: transparent;
    border: 1px solid transparent;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.tool-btn:hover,
.icon-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tool-btn.active {
    background: var(--primary-color);
    color: white;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    width: 250px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

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

.panel {
    border-bottom: 1px solid var(--border-color);
}

.panel-header {
    padding: 1rem;
    font-weight: 600;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.component-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    padding: 1rem;
}

.component-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.component-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.component-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 0.5rem;
    display: block;
}

.component-label {
    font-size: 0.75rem;
}

.canvas-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

#mainCanvas {
    width: 100%;
    height: 100%;
    cursor: default;
}

.canvas-info {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    display: flex;
    gap: 2rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.properties-content {
    padding: 1rem;
}

.no-selection {
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem 1rem;
}

.property-group {
    margin-bottom: 1rem;
}

.property-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.property-group input,
.property-group select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.property-group input:focus,
.property-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-full-width {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    margin-top: 0.5rem;
}

.btn-full-width:hover {
    background: var(--primary-hover);
}

.sim-controls {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sim-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.sim-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: 0.75rem;
    padding: 2rem;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.modal-content h3 {
    margin: 1rem 0 0.5rem;
    color: var(--text-primary);
}

.modal-content ul {
    list-style: none;
    padding-left: 0;
}

.modal-content li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

kbd {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    padding: 0.125rem 0.375rem;
    font-family: monospace;
    font-size: 0.875rem;
}

.welcome-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.info-section i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.primary-btn {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s;
}

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

/* Floating Panel */
.floating-panel {
    position: absolute;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 1000;
    min-width: 200px;
    min-height: 150px;
}

.floating-panel .panel-header {
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
}

.floating-panel .panel-title {
    font-weight: 600;
    color: var(--text-primary);
}

.floating-panel .panel-controls button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 0.25rem;
}

.floating-panel .panel-controls button:hover {
    background: var(--bg-tertiary);
    color: var(--error-color);
}

.floating-panel .panel-content {
    flex: 1;
    overflow: auto;
    padding: 1rem;
    position: relative;
}

.floating-panel .panel-resize-handle {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 15px;
    height: 15px;
    cursor: nwse-resize;
    background: linear-gradient(135deg, transparent 50%, var(--border-color) 50%);
}

/* Truth Table Styles */
.truth-table-container table {
    width: 100%;
    border-collapse: collapse;
}

.truth-table-container th,
.truth-table-container td {
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    text-align: center;
}

.truth-table-container th {
    background: var(--bg-secondary);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.bit {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 0.25rem;
    font-family: monospace;
    font-weight: bold;
}

.bit.one {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.bit.zero {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

/* Oscilloscope Styles */
.oscilloscope-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 0.5rem;
}

#oscilloscopeCanvas {
    background: #111;
    border-radius: 0.25rem;
    flex: 1;
    width: 100%;
}

.oscilloscope-controls {
    display: flex;
    gap: 1rem;
    padding: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 0.25rem;
    align-items: center;
}

/* Wire Glow Animation */
@keyframes wireGlow {
    0% {
        stroke-opacity: 0.8;
        stroke-width: 3px;
    }

    50% {
        stroke-opacity: 1;
        stroke-width: 4px;
    }

    100% {
        stroke-opacity: 0.8;
        stroke-width: 3px;
    }
}

.wire-active {
    animation: wireGlow 1.5s infinite ease-in-out;
}

/* Examples Modal */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.example-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
    color: var(--text-primary);
}

.example-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.example-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Keyboard Shortcuts Modal */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 1rem 0;
}

.shortcuts-section {
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.shortcuts-section h3 {
    margin: 0 0 1rem 0;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.shortcuts-section h3 i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.shortcut-item kbd {
    min-width: 2rem;
    text-align: center;
    flex-shrink: 0;
}

.shortcut-item span {
    color: var(--text-secondary);
    font-size: 0.9rem;
    flex-grow: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-header i {
    color: var(--primary-color);
}

.close-btn {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.25rem;
    transition: all 0.2s;
}

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

.modal-body {
    max-height: 60vh;
    overflow-y: auto;
}

/* Button Styles */
.btn-full-width {
    width: 100%;
    padding: 0.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-full-width:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-full-width i {
    font-size: 1rem;
}

/* Simulation Status Styles */
.sim-status {
    padding: 1rem;
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.status-item label {
    font-weight: 600;
    color: var(--text-primary);
}

.status-item span {
    color: var(--text-secondary);
    font-family: monospace;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }

    .welcome-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        flex-wrap: wrap;
    }

    .sidebar {
        position: absolute;
        z-index: 100;
        height: 100%;
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

    .sidebar.active {
        transform: translateX(0);
    }
}