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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #ffffff;
            color: #282D35;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        header {
            /* background-image:url('assets/keycode.jpg'); */
            background-size: cover;
            background-color: #214414;
            color: white;
            padding: 2rem 1.5rem 3rem;
            text-align: center;
            box-shadow: 0 2px 10px rgba(55, 115, 34, 0.2);
            background-blend-mode:saturation;
            min-height: 150px;
            background-position: top;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        .subtitle {
            font-size: 1.1rem;
            opacity: 0.95;
            font-weight: 300;
            color: #377322;
            background-color: white;
            padding: 0.3rem 0.8rem;

        }

        .container {
            flex: 1;
            max-width: 1400px;
            margin: 0 auto;
            padding: 3rem 2rem;
            width: 100%;
        }

        .instruction {
            background: #F3F4F9;
            border-left: 4px solid #377322;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 2rem;
            font-size: 1.1rem;
            color: #282D35;
        }

        .main-display {
            background: linear-gradient(145deg, #FAFAFA 0%, #F3F4F9 100%);
            border: 2px solid #e4e4e4;
            border-radius: 16px;
            padding: 3rem;
            text-align: center;
            margin-bottom: 2rem;
            min-height: 250px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }

        .key-visual {
            font-size: 6rem;
            font-weight: 700;
            color: #377322;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(55, 115, 34, 0.1);
            min-height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .key-name {
            font-size: 1.8rem;
            color: #707070;
            margin-bottom: 0.5rem;
        }

        .placeholder {
            color: #707070;
            font-size: 1.5rem;
        }

        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .info-card {
            background: white;
            border: 2px solid #e4e4e4;
            border-radius: 12px;
            padding: 1.5rem;
            transition: all 0.3s ease;
        }

        .info-card:hover {
            border-color: #377322;
            box-shadow: 0 4px 15px rgba(55, 115, 34, 0.1);
            transform: translateY(-2px);
        }

        .info-label {
            font-size: 0.9rem;
            color: #707070;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        .info-value {
            font-size: 1.8rem;
            color: #377322;
            font-weight: 700;
            word-break: break-all;
        }

        .history-section {
            background: white;
            border: 2px solid #e4e4e4;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 2px 10px rgba(0,0,0,0.03);
        }

        .history-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }

        .history-title {
            font-size: 1.5rem;
            color: #282D35;
            font-weight: 600;
        }

        .clear-btn {
            background: #377322;
            color: white;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .clear-btn:hover {
            background: #2a5a1a;
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(55, 115, 34, 0.3);
        }

        .history-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .history-item {
            background: #F3F4F9;
            border: 1px solid #e4e4e4;
            padding: 0.8rem 1.2rem;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            font-size: 1rem;
            color: #282D35;
            transition: all 0.2s ease;
        }

        .history-item:hover {
            background: #8EF14B;
            border-color: #377322;
            transform: scale(1.05);
        }

        .modifiers {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }

        .modifier {
            background: #e4e4e4;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-size: 0.9rem;
            color: #707070;
        }

        .modifier.active {
            background: #8EF14B;
            color: #377322;
            font-weight: 600;
        }

        footer {
            background: #F3F4F9;
            padding: 1.5rem;
            text-align: center;
            color: #707070;
            border-top: 1px solid #e4e4e4;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            .key-visual {
                font-size: 4rem;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Logo placed above everything */
        .site-logo {
            display: flex;
            justify-content: center;
            padding: 0.6rem;
            background: #ffffff;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .site-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

        @media (max-width: 480px) {
            .site-logo img { height: 40px; }
        }