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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #1e1e1e;
    color: #d4d4d4;
    height: 100vh;
    overflow: hidden;
}

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

header {
    background: #252526;
    padding: 16px 24px;
    border-bottom: 1px solid #3e3e42;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

h1 {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.editor-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-right: 1px solid #3e3e42;
    min-width: 0;
}

.toolbar {
    background: #252526;
    padding: 12px 16px;
    border-bottom: 1px solid #3e3e42;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.language-select {
    padding: 8px 16px;
    background: #3e3e42;
    border: 1px solid #505050;
    border-radius: 6px;
    color: #d4d4d4;
    font-size: 14px;
    cursor: pointer;
    outline: none;
}

.language-select:hover {
    background: #4e4e52;
}

.analyze-btn {
    margin-left: auto;
    padding: 8px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.analyze-btn:hover {
    transform: translateY(-1px);
}

.analyze-btn:active {
    transform: translateY(0);
}

.analyze-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#editor {
    flex: 1;
    width: 100%;
    min-height: 0;
}

.results-panel {
    width: 400px;
    min-width: 400px;
    max-width: 400px;
    flex-shrink: 0;
    background: #252526;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.results-header {
    padding: 16px 20px;
    border-bottom: 1px solid #3e3e42;
}

.results-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}

.results-content {
    padding: 20px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #858585;
}

.result-section {
    margin-bottom: 24px;
}

.result-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
}

.complexity-badge {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 6px;
    font-size: 18px;
    font-weight: bold;
    color: white;
    font-family: 'Courier New', monospace;
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    padding: 8px 12px;
    background: #1e1e1e;
    border-radius: 4px;
    margin-bottom: 8px;
    font-size: 13px;
}

.chart-container {
    background: #1e1e1e;
    padding: 16px;
    border-radius: 8px;
    height: 300px;
    position: relative;
}

.loading {
    display: none;
    padding: 20px;
    text-align: center;
}

.loading.active {
    display: block;
}

.spinner {
    border: 3px solid #3e3e42;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Tablet */
@media (max-width: 1024px) {
    .results-panel {
        width: 350px;
        min-width: 350px;
        max-width: 350px;
    }

    header {
        padding: 12px 16px;
    }

    h1 {
        font-size: 18px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    .editor-panel {
        border-right: none;
        border-bottom: 1px solid #3e3e42;
        min-height: 50vh;
        max-height: 50vh;
    }

    .results-panel {
        width: 100%;
        min-width: 100%;
        max-width: 100%;
        flex: 1;
    }

    header {
        padding: 12px 16px;
    }

    h1 {
        font-size: 16px;
    }

    .logo {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }

    .toolbar {
        padding: 8px 12px;
        gap: 8px;
    }

    .language-select {
        padding: 6px 12px;
        font-size: 13px;
    }

    .analyze-btn {
        padding: 6px 16px;
        font-size: 13px;
        margin-left: auto;
    }

    .results-content {
        padding: 16px;
    }

    .result-section {
        margin-bottom: 20px;
    }

    .complexity-badge {
        font-size: 16px;
        padding: 4px 10px;
    }

    .info-list li {
        font-size: 12px;
        padding: 6px 10px;
    }

    .chart-container {
        height: 200px;
        padding: 12px;
    }

    .empty-state {
        padding: 40px 16px;
        font-size: 14px;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    header {
        padding: 10px 12px;
    }

    h1 {
        font-size: 14px;
        gap: 8px;
    }

    .logo {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .analyze-btn {
        margin-left: 0;
        width: 100%;
    }

    .editor-panel {
        min-height: 40vh;
        max-height: 40vh;
    }

    .chart-container {
        height: 180px;
    }
}