* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            background: #1a1a1a;
            min-height: 100vh;
        }
        
        .clock-banner {
            background: linear-gradient(to right, #0a0a0a, #1a1a1a);
            padding: 60px 20px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
        }
        
        .clock {
            font-size: 6rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: #000000;
            font-family: Impact, 'Arial Black', sans-serif;
            background: white;
            display: inline-block;
            padding: 35px 120px;
            border-radius: 8px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }
        
        .date {
            font-size: 1rem;
            margin-top: 20px;
            color: #999;
            font-weight: 400;
            letter-spacing: 1px;
        }
        
        .container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }
        
        .content {
            padding: 60px 70px;
        }
        
        h1 {
            color: #0a0a0a;
            font-size: 2.8rem;
            margin-bottom: 15px;
            font-weight: 700;
            letter-spacing: -1px;
            font-family: 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.2;
        }
        
        .red-line {
            width: 25%;
            height: 3px;
            background: #e2202b;
            margin-bottom: 40px;
        }
        
        .subtitle {
            color: #2a2a2a;
            font-size: 1rem;
            margin-bottom: 10px;
            font-weight: 400;
            line-height: 1.6;
        }
        
        .credit {
            color: #3a3a3a;
            font-size: 0.9rem;
            margin-bottom: 8px;
            line-height: 1.6;
        }
        
        .project-info {
            color: #4a4a4a;
            font-size: 0.88rem;
            margin-bottom: 45px;
            line-height: 1.6;
        }
        
        .params-display {
            background: white;
            padding: 25px 30px;
            border-radius: 6px;
            margin-bottom: 40px;
            font-size: 0.95rem;
            color: #333;
            border: 3px solid #e2202b;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        
        .params-display strong {
            color: #1a1a1a;
            font-size: 1rem;
        }
        
        .form-group {
            margin-bottom: 30px;
        }
        
        .input-group {
            margin-bottom: 20px;
        }
        
        .custom-inputs {
            display: none;
            margin-top: 20px;
        }
        
        .custom-inputs.show {
            display: block;
        }
        
        .note {
            background: #fff9e6;
            padding: 12px 16px;
            border-radius: 4px;
            border-left: 4px solid #f5a623;
            font-size: 0.85rem;
            color: #666;
            margin-top: 15px;
            line-height: 1.5;
        }
        
        label {
            display: block;
            color: #1a1a1a;
            font-size: 0.9rem;
            margin-bottom: 10px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        select {
            width: 100%;
            padding: 14px 16px;
            font-size: 1rem;
            border: 1.5px solid #d0d0d0;
            border-radius: 4px;
            background: white;
            color: #1a1a1a;
            cursor: pointer;
            transition: all 0.2s ease;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }
        
        select:hover {
            border-color: #999;
        }
        
        select:focus {
            outline: none;
            border-color: #e2202b;
        }
        
        input[type="number"] {
            width: 100%;
            padding: 12px 16px;
            font-size: 0.95rem;
            border: 1.5px solid #d0d0d0;
            border-radius: 4px;
            background: white;
            color: #1a1a1a;
            transition: all 0.2s ease;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }
        
        input[type="number"]:hover {
            border-color: #999;
        }
        
        input[type="number"]:focus {
            outline: none;
            border-color: #e2202b;
        }
        
        .button-container {
            text-align: center;
            margin: 40px 0;
        }
        
        .run-button {
            background: #e2202b;
            color: white;
            border: none;
            padding: 16px 48px;
            font-size: 1rem;
            font-weight: 500;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-transform: none;
            letter-spacing: 0.3px;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }
        
        .run-button:hover {
            background: #c41e27;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(226, 32, 43, 0.3);
        }
        
        .run-button:active {
            transform: translateY(0);
        }
        
        .output-section {
            background: #fafafa;
            padding: 30px;
            border-radius: 4px;
            margin-top: 30px;
            border: 1px solid #e8e8e8;
        }
        
        .output-title {
            color: #1a1a1a;
            font-size: 1.2rem;
            margin-bottom: 20px;
            font-weight: 500;
        }
        
        .output-content {
            font-family: 'Consolas', 'SF Mono', 'Monaco', monospace;
            font-size: 0.92rem;
            white-space: pre-wrap;
            color: #0a0a0a;
            line-height: 1.9;
            font-weight: 500;
        }
        
        .loading {
            color: #999;
            font-style: italic;
        }
        
        .footer-section {
            margin-top: 50px;
            margin-left: -70px;
            margin-right: -70px;
            margin-bottom: -60px;
            padding: 30px 70px;
            background: #e2202b;
            text-align: center;
            border-top: 4px solid #000000;
        }
        
        .footer-text {
            color: #ffffff;
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
            font-family: 'Helvetica Neue', Arial, sans-serif;
            font-weight: 500;
            letter-spacing: 0.3px;
        }