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

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e0e0e0;
    line-height: 1.6;
    min-width: 650px;
}

body::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

body::-webkit-scrollbar-track {
    background: #1e1e2e;
    border: 1px solid transparent;
}
body::-webkit-scrollbar-thumb {
    background: #6b48ff;
    border-radius: 5px;
    transition: background 0.3s ease;
}

body::-webkit-scrollbar-thumb:hover {
    background: #8a67ff;
}

body::-webkit-scrollbar-corner {
    background: #1e1e2e;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: #0f0f1a;
    padding: 25px 40px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
    border-bottom: 1px solid #2a2a3d;
    height: 220px;
}

header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

header p {
    font-size: 0.9rem;
    color: #b0b0c0;
    max-width: 600px;
}

.language-selector {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.language-selector button {
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 500;
    color: #e0e0e0;
    background: #2a2a3d;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-selector button:hover {
    background: #3a3a5d;
    transform: translateY(-2px);
}

.language-selector button.active {
    background: #6b48ff;
    color: #ffffff;
}

main {
    flex: 1;
    padding: 30px 0;
    margin: 230px 0 60px 0;
    overflow-y: auto;
    overflow-x: auto;
    height: calc(100vh - 120px - 60px);
    width: 100%;
    min-width: 650px;
}

main::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

main::-webkit-scrollbar-track {
    background: #1e1e2e;
    border-radius: 5px;
    border: 1px solid transparent;
}

main::-webkit-scrollbar-thumb {
    background: #6b48ff;
    border-radius: 5px;
    transition: background 0.3s ease;
}

main::-webkit-scrollbar-thumb:hover {
    background: #8a67ff;
}

main::-webkit-scrollbar-corner {
    background: #1e1e2e;
}

.tween-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, 600px);
    gap: 20px;
    padding: 15px;
    justify-content: center;
    width: 100%;
    min-width: 600px;
}

.group-card {
    width: 600px !important;
    height: 200px !important;
    background: #252535;
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.group-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.group-card .tween-name {
    font-weight: 600;
    font-size: 1rem;
    color: #ffffff;
    text-transform: capitalize;
    letter-spacing: 0.5px;
}

.group-content {
    display: flex;
    flex-direction: row;
    gap: 15px;
    height: calc(100% - 30px);
}

.animation-zone {
    background: #1e1e2e;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #3a3a5d;
    width: 40%;
    display: flex;
    flex-direction: column;
}

.animation-zone canvas {
    width: 100%;
    height: 100%;
}

.code-zone {
    position: relative;
    width: 70%;
    display: flex;
    flex-direction: column;
    font-size: 0.8rem;
}

.code-zone .copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 8px;
    font-size: 0.8rem;
    color: #e0e0e0;
    background: #3a3a5d;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.code-zone .copy-btn:hover {
    background: #6b48ff;
}

.code-block {
    flex-grow: 1;
    background: #1e1e2e;
    border-radius: 6px;
    padding: 10px;
    font-size: 0.75rem;
    overflow: auto;
    border: 1px solid #3a3a5d;
}

.code-block::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

.code-block::-webkit-scrollbar-track {
    background: #1e1e2e00;
}

.code-block::-webkit-scrollbar-thumb {
    background: #6b48ff60;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.code-block::-webkit-scrollbar-thumb:hover {
    background: #8a67ff90;
}

.code-block::-webkit-scrollbar-corner {
    background: #00000000;
}

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    color: #b0b0c0;
    background: #0f0f1a;
    border-top: 1px solid #2a2a3d;
    height: 60px;
    z-index: 100;
}

@media (max-width: 1200px) {
    .tween-grid {
        grid-template-columns: repeat(auto-fit, 600px);
    }
}

@media (max-width: 900px) {
    .tween-grid {
        grid-template-columns: repeat(auto-fit, 600px);
    }

    header {
        padding: 20px;
        height: 160px;
    }

    header h1 {
        font-size: 1rem;
    }

    header p {
        font-size: .8rem;
    }

    .language-selector button {
        padding: 6px 12px;
        font-size: 0.7rem;
    }

    main {
        margin: 140px 0 60px 0;
        height: calc(100vh - 100px - 60px);
    }
}

@media (max-width: 700px) {
    body {
        overflow-x: auto;
    }

    header {
        min-width: 700px;
    }

    main {
        min-width: 700px;
    }

    .tween-grid {
        min-width: 650px;
    }

    footer {
        min-width: 700px;
    }
}