:root {
    --lpa-blue: #2d67fd;
    --lpa-light: #f6f8fb;
    --lpa-text: #1b2437;
    --lpa-muted: #5b6785;
    --lpa-border: #dfe5f0;
    --lpa-shadow: 0 20px 60px rgba(27, 36, 55, 0.12);
}

.lpa-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    background: var(--lpa-light);
    font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
}

.lpa-card {
    background: #fff;
    border-radius: 20px;
    padding: 36px;
    width: min(960px, 100%);
    box-shadow: var(--lpa-shadow);
    border: 1px solid var(--lpa-border);
    font-size: 13px;
    line-height: 1.6;
}

.lpa-header h1 {
    margin: 8px 0 6px;
    font-size: 26px;
    color: var(--lpa-text);
}

.lpa-subtitle {
    margin: 0;
    color: var(--lpa-muted);
    font-size: 16px;
}

.lpa-muted {
    color: var(--lpa-muted);
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-line;
}

.lpa-badge {
    display: inline-block;
    background: rgba(45, 103, 253, 0.12);
    color: var(--lpa-blue);
    padding: 6px 12px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.2px;
    text-transform: uppercase;
}

.lpa-form {
    margin-top: 24px;
    display: grid;
    gap: 18px;
}

.lpa-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--lpa-text);
}

.lpa-field input[type="url"] {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--lpa-border);
    background: #f9fbff;
    font-size: 15px;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

.lpa-field input[type="url"]:focus {
    border-color: var(--lpa-blue);
    outline: none;
    box-shadow: 0 0 0 3px rgba(45, 103, 253, 0.18);
}

.lpa-hint {
    font-weight: 500;
    color: var(--lpa-muted);
    font-size: 13px;
}

.lpa-button {
    background: linear-gradient(135deg, #2d67fd, #244ddc);
    color: #fff;
    border: none;
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 10px 25px rgba(45, 103, 253, 0.35);
}

.lpa-button:hover {
    transform: translateY(-1px);
}

.lpa-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.lpa-note {
    color: var(--lpa-muted);
    font-size: 12px;
    margin: 8px 0 0;
}

.lpa-results {
    margin-top: 24px;
    border: 1px dashed var(--lpa-border);
    border-radius: 14px;
    padding: 18px;
    background: #fdfefe;
    font-size: 13px;
    line-height: 1.6;
}

.lpa-results p,
.lpa-card-small p {
    font-size: 13px;
    line-height: 1.6;
    margin: 0 0 10px;
    white-space: pre-line;
}

.lpa-results p:last-child,
.lpa-card-small p:last-child {
    margin-bottom: 0;
}

.lpa-error {
    color: #a0102b;
    background: #fff2f5;
    border: 1px solid #f2c6d2;
}

.lpa-placeholder {
    color: var(--lpa-muted);
    text-align: center;
    padding: 14px;
}

.lpa-loader {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 3px solid rgba(45, 103, 253, 0.25);
    border-top-color: var(--lpa-blue);
    border-radius: 50%;
    animation: lpa-spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

.lpa-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
    margin-top: 12px;
}

.lpa-card-small {
    border: 1px solid var(--lpa-border);
    border-radius: 12px;
    padding: 14px;
    background: #fff;
    font-size: 13px;
    line-height: 1.6;
}

.lpa-card-small h4 {
    margin: 0 0 4px;
    font-size: 16px;
}

.lpa-score {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
}

.lpa-score-bar {
    flex: 1;
    background: var(--lpa-light);
    border-radius: 10px;
    overflow: hidden;
    height: 10px;
}

.lpa-score-bar span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #2d67fd, #2bd9ff);
}

.lpa-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.lpa-tag {
    background: rgba(45, 103, 253, 0.08);
    border: 1px solid var(--lpa-border);
    color: var(--lpa-text);
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 13px;
}

.lpa-assistant {
    white-space: pre-wrap;
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 12px;
    padding: 14px;
    font-size: 13px;
    line-height: 1.5;
    overflow: auto;
}

.lpa-card-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 10px;
}

.lpa-card-title h3 {
    margin: 0;
    font-size: 16px;
}

.lpa-copy-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid var(--lpa-border);
    background: #f9fbff;
    color: var(--lpa-text);
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.lpa-copy-button:hover {
    background: #eef3ff;
    border-color: var(--lpa-blue);
}

.lpa-copy-button:active {
    transform: translateY(1px);
}

.lpa-copy-status {
    color: var(--lpa-muted);
    font-size: 12px;
}

@keyframes lpa-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 640px) {
    .lpa-card { padding: 24px; }
    .lpa-header h1 { font-size: 22px; }
}