:root {
    --primary-color: #7289da;
    --primary-hover: #5b6eae;
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --border-color: #2d2d2d;
    --success-color: #43b581;
    --dropzone-bg: #2d2d2d;
    --dropzone-hover: #363636;
    --result-bg: #2d2d2d;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

header p {
    color: #888;
    font-size: 1.1rem;
}

main {
    flex: 1;
}

.upload-container {
    background-color: var(--dropzone-bg);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 2rem;
}

.upload-container:hover {
    border-color: var(--primary-color);
    background-color: var(--dropzone-hover);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-text {
    margin-bottom: 1rem;
    color: #888;
}

.upload-text strong {
    color: var(--text-color);
}

.choose-file-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.choose-file-btn:hover {
    background-color: var(--primary-hover);
}

#file-input {
    display: none;
}

.result-container {
    display: none;
    background-color: var(--result-bg);
    border-radius: 10px;
    padding: 2rem;
    margin-top: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.result-container.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

.result-container h2 {
    color: var(--success-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.download-info {
    background-color: var(--dropzone-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.download-info p {
    color: #888;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.download-link {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: none;
    margin: 0;
    padding: 0;
}

.download-link input {
    flex: 1;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.8rem 1rem;
    border-radius: 5px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.download-link input:focus {
    border-color: var(--primary-color);
}

.download-link button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.download-link button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.download-link button:active {
    transform: translateY(0);
}

.success-message {
    color: var(--success-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.copy-btn {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

footer {
    text-align: center;
    margin-top: 2rem;
    color: #666;
    font-size: 0.9rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Drag and drop styles */
.upload-container.dragover {
    border-color: var(--primary-color);
    background-color: var(--dropzone-hover);
    transform: scale(1.02);
}

/* Responsive design */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .upload-container {
        padding: 1.5rem;
    }
}