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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            background: #0f3460;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            padding: 40px;
            max-width: 675px;
            width: 100%;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        h1 {
            color: #e94560;
            margin-bottom: 10px;
            font-size: 28px;
            text-shadow: 0 2px 10px rgba(233, 69, 96, 0.3);
        }

        .subtitle {
            color: #a8b2d1;
            margin-bottom: 30px;
            font-size: 14px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            color: #ccd6f6;
            font-weight: 600;
            font-size: 14px;
        }

        input, textarea {
            width: 100%;
            padding: 12px;
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            font-size: 14px;
            font-family: 'Courier New', monospace;
            transition: all 0.3s;
            background: rgba(255, 255, 255, 0.05);
            color: #e6f1ff;
        }

        input:focus, textarea:focus {
            outline: none;
            border-color: #e94560;
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
        }

        input::placeholder, textarea::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }

        textarea {
            resize: vertical;
            min-height: 100px;
        }

        .hint {
            font-size: 12px;
            color: #8892b0;
            margin-top: 4px;
        }

        button {
            background: linear-gradient(135deg, #e94560 0%, #ff6b9d 100%);
            color: white;
            border: none;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            width: 100%;
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
        }

        button:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.4);
        }

        button:active:not(:disabled) {
            transform: translateY(0);
        }

        button:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .results {
            margin-top: 30px;
            padding-top: 30px;
            border-top: 2px solid rgba(255, 255, 255, 0.1);
        }

        .result-item {
            background: rgba(255, 255, 255, 0.05);
            border-left: 4px solid #e94560;
            padding: 16px;
            margin-bottom: 16px;
            border-radius: 8px;
            backdrop-filter: blur(10px);
        }

        .result-item.spent {
            border-left-color: #ff6b6b;
        }

        .result-item.unspent {
            border-left-color: #51cf66;
        }

        .result-item.pending {
            border-left-color: #ffd43b;
        }

        .result-y {
            font-family: 'Courier New', monospace;
            font-size: 12px;
            color: #8892b0;
            word-break: break-all;
            margin-bottom: 8px;
        }

        .result-state {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .result-state.SPENT {
            color: #ff6b6b;
        }

        .result-state.UNSPENT {
            color: #51cf66;
        }

        .result-state.PENDING {
            color: #ffd43b;
        }

        .result-witness {
            background: rgba(0, 0, 0, 0.3);
            padding: 12px;
            border-radius: 4px;
            font-family: 'Courier New', monospace;
            font-size: 12px;
            word-break: break-all;
            margin-top: 8px;
            color: #a8b2d1;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .error {
            background: rgba(255, 212, 59, 0.1);
            border-left: 4px solid #ffd43b;
            padding: 16px;
            margin-top: 20px;
            border-radius: 8px;
            color: #ffd43b;
        }

        .loading {
            text-align: center;
            padding: 20px;
            color: #e94560;
        }

        .spinner {
            border: 3px solid rgba(255, 255, 255, 0.1);
            border-top: 3px solid #e94560;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 0 auto 16px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .debug {
            background: rgba(0, 0, 0, 0.3);
            padding: 12px;
            margin-top: 20px;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            font-size: 12px;
            white-space: pre-wrap;
            word-break: break-all;
            color: #a8b2d1;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        h2 {
            color: #ccd6f6;
        }