body {
    background-color: #0d1117;
    color: #e6edf3;
}

.brand {
    letter-spacing: -0.5px;
    color: #e6edf3;
}
.brand span {
    color: #3fb950;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.1;
}
.hero-title span {
    color: #3fb950;
}

.hero-subtitle {
    color: #8b949e;
    max-width: 480px;
}

.drop-zone {
    border: 2px dashed #30363d;
    border-radius: 16px;
    background-color: #161b22;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    max-width: 520px;
}
.drop-zone:hover,
.drop-zone.dragover {
    border-color: #3fb950;
    background-color: #0d1117;
}

.drop-zone-icon {
    font-size: 2.5rem;
    opacity: 0.6;
}

.drop-zone-text {
    color: #8b949e;
}
.drop-zone-text strong {
    color: #3fb950;
}

.badge-e2e {
    background-color: #1a2f1e;
    color: #3fb950;
    border: 1px solid #2ea043;
    font-size: 0.78rem;
}

footer, footer a {
    color: #484f58;
}
footer a:hover {
    color: #8b949e;
}

.preview-media {
    max-width: 100%;
    border-radius: 8px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.preview-audio {
    width: 100%;
}

.preview-pdf {
    width: 100%;
    height: 420px;
    border: none;
    border-radius: 8px;
    display: block;
}

.preview-text {
    text-align: left;
    max-height: 320px;
    overflow: auto;
    background: #0d1117;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.78rem;
    color: #e6edf3;
    border: 1px solid #30363d;
    white-space: pre-wrap;
    word-break: break-word;
}