/* BPUK Culture Add Navigator — Scoped styles */

.bpuk-cn {
    max-width: 720px;
    margin: 2rem auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    color: #1e293b;
}

.bpuk-cn h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #0f172a;
}

.bpuk-cn p {
    margin-bottom: 1rem;
    color: #475569;
}

/* Steps */
.bpuk-cn-step {
    display: none;
    animation: bpukFadeIn 0.3s ease;
}

.bpuk-cn-step--active {
    display: block;
}

@keyframes bpukFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Textarea */
.bpuk-cn textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 0.95rem;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.bpuk-cn textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Buttons */
.bpuk-cn-btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    background: #2563eb;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 1rem;
}

.bpuk-cn-btn:hover {
    background: #1d4ed8;
}

.bpuk-cn-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.bpuk-cn-btn--secondary {
    background: #64748b;
}

.bpuk-cn-btn--secondary:hover {
    background: #475569;
}

.bpuk-cn-btn-group {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* Upload area */
.bpuk-cn-upload-area {
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
}

.bpuk-cn-upload-area:hover,
.bpuk-cn-upload-area.dragover {
    border-color: #3b82f6;
    background: #eff6ff;
}

.bpuk-cn-upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.bpuk-cn-file-info {
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #166534;
}

/* Loading */
.bpuk-cn-loading {
    text-align: center;
    padding: 3rem 1rem;
}

.bpuk-cn-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #e2e8f0;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: bpukSpin 0.8s linear infinite;
    margin: 0 auto 1.5rem;
}

@keyframes bpukSpin {
    to { transform: rotate(360deg); }
}

.bpuk-cn-loading-sub {
    font-size: 0.85rem;
    color: #94a3b8 !important;
}

/* Results */
.bpuk-cn-results {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem 2rem;
    line-height: 1.7;
}

.bpuk-cn-results h1,
.bpuk-cn-results h2,
.bpuk-cn-results h3 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.bpuk-cn-results ol,
.bpuk-cn-results ul {
    padding-left: 1.25rem;
}

.bpuk-cn-results li {
    margin-bottom: 0.75rem;
}

.bpuk-cn-results em {
    color: #64748b;
    font-size: 0.9rem;
}

/* Error */
.bpuk-cn-error {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #991b1b;
    font-size: 0.9rem;
}