body {
    background:
        radial-gradient(circle at top right, rgba(136, 179, 255, 0.15), transparent 24%),
        linear-gradient(180deg, rgba(6, 11, 20, 0.74), rgba(6, 11, 20, 0.9)),
        var(--bg-download) center/cover fixed;
}

.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
}

.container {
    width: min(100%, 680px);
    padding: 34px;
    border-radius: 24px;
    border: 1px solid var(--line-strong);
    background: rgba(14, 22, 40, 0.9);
    box-shadow: var(--shadow);
}

h1 {
    margin: 0 0 20px;
    font-family: "Fraunces", serif;
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    color: var(--text);
}

.error {
    padding: 12px 14px;
    margin-bottom: 16px;
    border-radius: 14px;
    color: #ffd2d2;
    background: rgba(255, 143, 143, 0.1);
    border: 1px solid rgba(255, 143, 143, 0.18);
}

.file-info {
    margin: 18px 0 22px;
    padding: 18px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.035);
}

.file-info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
    color: var(--text-soft);
}

.file-info i {
    width: 18px;
    color: var(--accent);
}

.download-button {
    width: 100%;
    min-height: 52px;
    border: 0;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #07111f;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.download-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 34px rgba(136, 179, 255, 0.22);
}

.download-button i {
    margin-right: 10px;
}