:root {
    --bg: #0f172a;
    --card: #1e293b;
    --card-border: #334155;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 100%);
    color: var(--text);
    min-height: 100vh;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1rem 3rem;
}

header h1 {
    margin: 0 0 0.5rem;
    font-size: 1.75rem;
}

header p {
    margin: 0;
    color: var(--muted);
}

.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-top: 1.25rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

textarea,
input,
select {
    width: 100%;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    background: #0b1220;
    color: var(--text);
    padding: 0.65rem 0.75rem;
    font: inherit;
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

button {
    border: none;
    border-radius: 8px;
    padding: 0.7rem 1.1rem;
    font-weight: 600;
    cursor: pointer;
    font: inherit;
}

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

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

.btn-secondary {
    background: #334155;
    color: white;
}

.btn-success {
    background: var(--success);
    color: #052e16;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.status {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    display: none;
}

.status.show {
    display: block;
}

.status.info {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.4);
}

.status.error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
}

.status.success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.4);
}

.preview-list {
    display: grid;
    gap: 1rem;
}

.soal-item {
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 1rem;
    background: #0b1220;
}

.soal-item h3 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    color: #93c5fd;
}

.soal-item .meta {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.soal-item ul {
    margin: 0.5rem 0 0;
    padding-left: 1.2rem;
}

.soal-item li.correct {
    color: #86efac;
    font-weight: 600;
}

.hint {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.field-block {
    margin-top: 1rem;
}

.checkbox-row {
    margin-top: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
    margin-top: 0.2rem;
}

.upload-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.upload-thumb {
    width: 88px;
    text-align: center;
}

.upload-thumb img {
    width: 88px;
    height: 88px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.upload-thumb span {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 0.25rem;
}

.soal-preview-img {
    max-width: 100%;
    max-height: 220px;
    border-radius: 8px;
    margin: 0.5rem 0;
    border: 1px solid var(--card-border);
}

.soal-img-warn {
    color: var(--warning);
    font-size: 0.85rem;
}

@media (max-width: 640px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}