* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Inter', system-ui, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #ff9966 0%, #ff5e62 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .container {
            max-width: 700px;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 40px;
            padding: 40px;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        h1 {
            font-size: 2.2rem;
            color: #1e293b;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        h1 svg {
            width: 40px;
            height: 40px;
            stroke: #ff5e62;
        }

        .subtitle {
            color: #475569;
            margin-bottom: 30px;
            font-size: 1rem;
            border-bottom: 1px solid #e2e8f0;
            padding-bottom: 15px;
        }

        .timer-display {
            background: linear-gradient(135deg, #1e293b, #0f172a);
            border-radius: 60px;
            padding: 40px;
            margin-bottom: 30px;
            text-align: center;
            box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
        }

        #timer {
            font-size: 5rem;
            font-weight: 700;
            color: white;
            font-family: 'Courier New', monospace;
            text-shadow: 0 0 20px rgba(255,255,255,0.3);
            letter-spacing: 5px;
        }

        .timer-status {
            color: #94a3b8;
            margin-top: 10px;
            font-size: 1.1rem;
        }

        .settings-card {
            background: #f8fafc;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            padding: 25px;
            margin-bottom: 25px;
        }

        .time-inputs {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .time-input-group {
            text-align: center;
        }

        .time-input-group label {
            display: block;
            margin-bottom: 8px;
            color: #475569;
            font-weight: 500;
            font-size: 0.9rem;
        }

        .time-input-group input {
            width: 100px;
            padding: 12px;
            border: 2px solid #e2e8f0;
            border-radius: 30px;
            font-size: 1.2rem;
            font-weight: 600;
            text-align: center;
            outline: none;
        }

        .time-input-group input:focus {
            border-color: #ff5e62;
        }

        .preset-buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .preset-btn {
            padding: 10px 20px;
            border: 2px solid #e2e8f0;
            background: white;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            color: #475569;
            cursor: pointer;
            transition: all 0.2s;
        }

        .preset-btn:hover {
            border-color: #ff5e62;
            color: #ff5e62;
        }

        .actions {
            display: flex;
            gap: 15px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .btn {
            flex: 1;
            min-width: 140px;
            padding: 16px;
            border: none;
            border-radius: 60px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-primary {
            background: #ff5e62;
            color: white;
        }

        .btn-primary:hover {
            background: #ff4146;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(255, 94, 98, 0.3);
        }

        .btn-success {
            background: #10b981;
            color: white;
        }

        .btn-success:hover {
            background: #0e9f6e;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
        }

        .btn-warning {
            background: #f59e0b;
            color: white;
        }

        .btn-warning:hover {
            background: #d97706;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
        }

        .btn-secondary {
            background: white;
            color: #475569;
            border: 2px solid #e2e8f0;
        }

        .btn-secondary:hover {
            border-color: #ff5e62;
            color: #ff5e62;
        }

        .info-text {
            margin-top: 20px;
            text-align: center;
            color: #64748b;
            font-size: 0.9rem;
        }

        .info-text a {
            color: #ff5e62;
            text-decoration: none;
            font-weight: 600;
        }

        .info-text a:hover {
            text-decoration: underline;
        }

        @media (max-width: 600px) {
            .container {
                padding: 25px;
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            #timer {
                font-size: 3rem;
            }
            
            .time-input-group input {
                width: 80px;
            }
            
            .btn {
                min-width: 100%;
            }
        }