:root {
    --bg: #0b1220;
    --text: #ffffff;
    --text-muted: #cccccc;
    --border: #ffffff;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.page {
    max-width: 800px;
    margin: 0 auto;
    padding: 32px 16px 48px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 32px;
}

.header h1 {
    font-size: 2rem;
    margin: 0;
    font-weight: bold;
    color: var(--text);
}

/* Main card area */
.main {
    display: flex;
    justify-content: center;
}

.card {
    width: 100%;
    max-width: 720px;
    padding: 24px 20px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
}

.step {
    margin: 0 0 8px;
    color: var(--text-muted);
    font-size: 1rem;
}

code {
    font-family: monospace;
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 4px;
    border-radius: 3px;
}

/* Dropzone */
.dropzone {
    margin-top: 20px;
    padding: 24px 16px;
    border: 2px dashed var(--border);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
}

.dropzone:hover,
.dropzone.dropzone-hover {
    background: rgba(255, 255, 255, 0.05);
}

.dropzone-title {
    margin: 0;
    font-size: 1rem;
    color: var(--text);
}

.dropzone-subtitle {
    margin: 8px 0 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Button */
.btn {
    padding: 8px 20px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: transparent;
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Status message */
.status {
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 640px) {
    .page {
        padding-top: 24px;
    }

    .card {
        padding: 20px 16px;
    }

    .header h1 {
        font-size: 1.6rem;
    }
}