:root {
    --bg-primary: #0a0a1a;
    --bg-secondary: #12122a;
    --bg-tertiary: #1a1a3a;
    --border-color: #2a2a4a;
    --color-primary: #00d4ff;
    --color-accent: #ff6b9d;
    --color-success: #00ff88;
    --color-warning: #ffaa00;
    --color-text: #e0e0f0;
    --color-text-muted: #8888aa;
    --color-axis-x: #ff6b6b;
    --color-axis-y: #6bff6b;
    --shadow-glow: 0 0 15px rgba(0, 212, 255, 0.4);
    --shadow-card: 0 4px 20px rgba(0, 212, 255, 0.1);
    --radius: 12px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
}

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

body {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    background: var(--bg-primary);
    color: var(--color-text);
    min-height: 100vh;
    overflow-x: hidden;
}

.header {
    height: 60px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
    margin-right: var(--spacing-md);
}

.subtitle {
    font-size: 14px;
    color: var(--color-text-muted);
}

.tab-nav {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--spacing-md);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-muted);
    font-family: inherit;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.main-container {
    height: calc(100vh - 104px);
    overflow: hidden;
}

.tab-content {
    display: none;
    height: 100%;
}

.tab-content.active {
    display: flex;
}

.control-panel {
    width: 280px;
    min-width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-md);
    overflow-y: auto;
}

.panel-section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.select-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: inherit;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.select-input:hover {
    border-color: var(--color-primary);
}

.select-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.input-group {
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.input-row {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.input-row:last-child {
    margin-bottom: 0;
}

.input-label {
    width: 35px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.number-input {
    flex: 1;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--color-text);
    font-family: inherit;
    font-size: 14px;
    transition: all 0.3s ease;
}

.number-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.2);
}

.text-input {
    flex: 1;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--color-text);
    font-family: inherit;
    font-size: 14px;
    transition: all 0.3s ease;
}

.text-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.2);
}

.range-input {
    flex: 1;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

.range-value {
    width: 40px;
    text-align: right;
    font-size: 14px;
    color: var(--color-primary);
}

.toggle-btn {
    padding: 4px 8px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--color-text-muted);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.buttons-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn-row {
    display: flex;
    gap: var(--spacing-sm);
}

.btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--color-text);
    border: 1px solid var(--border-color);
}

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

.result-container {
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    min-height: 60px;
}

.result-value,
.result-polar {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.result-value:last-child,
.result-polar:last-child {
    margin-bottom: 0;
}

.result-label {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-right: var(--spacing-sm);
}

.result-complex {
    font-size: 14px;
    color: var(--color-success);
    font-weight: 500;
    word-break: break-all;
}

.hint-section {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.hint-text {
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--color-text);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
}

.views-container {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    overflow: hidden;
}

.views-container.ft-views {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.view-panel {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.view-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.view-canvas {
    flex: 1;
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

@media (max-width: 1200px) {
    .views-container.ft-views {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .tab-content {
        flex-direction: column;
    }
    
    .control-panel {
        width: 100%;
        min-width: auto;
        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .views-container {
        grid-template-columns: 1fr;
    }
}