/* Dataset Finder – I14Y Design (based on harmgraph / keyword_generator) */

:root {
    --primary-color: #dc0018;
    --text-color: #15141A;
    --secondary-text: #5B5B66;
    --background-light: #F0F0F4;
    --border-color: #e0e0e0;
    --header-height: 83px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', "Helvetica Neue", sans-serif;
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f4 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Header ── */

header {
    background: white;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 5px solid var(--primary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-wrapper {
    max-width: none;
    width: 100%;
    height: var(--header-height);
    margin: 0;
    padding: 10px 24px;
}

.layout-brand {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 100%;
    width: 100%;
}

.brand-left {
    display: flex;
    align-items: center;
}

.header-info {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 12px;
    width: 30px;
    height: 30px;
    border: 1px solid #d9d9e3;
    border-radius: 50%;
    background: #ffffff;
    cursor: help;
}

.info-icon {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--secondary-text);
    line-height: 1;
}

.info-tooltip {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: min(320px, 80vw);
    padding: 10px 12px;
    border-radius: 8px;
    background: #15141a;
    color: #ffffff;
    font-size: 0.9rem;
    line-height: 1.4;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.22);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    z-index: 1200;
}

.header-info:hover .info-tooltip,
.header-info:focus-within .info-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.brand-logo {
    height: auto;
    width: 112px;
    padding: 20px 15px;
}

.header-title {
    font-family: Roboto, sans-serif;
    font-size: 26.4px;
    color: rgb(117, 117, 117);
    margin: 0;
    padding-left: 20px;
    border-left: 1px solid lightgrey;
    font-weight: 400;
}

/* ── Main ── */

main {
    margin-top: var(--header-height);
    padding-top: 32px;
    min-height: calc(100vh - var(--header-height) - 80px);
}

.container {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 3rem 48px 1.5rem;
}

/* ── Page header ── */

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-family: Roboto, sans-serif;
    font-size: 2.5rem;
    line-height: 1.2;
    font-weight: 400;
    margin: 0 0 0.75rem 0;
    letter-spacing: -0.03em;
}

.page-lead {
    font-size: 1.1em;
    color: var(--secondary-text);
    font-weight: 400;
    line-height: 1.6;
    margin-top: 0.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95em;
    margin-bottom: 1rem;
    font-weight: 500;
}

.back-link::before {
    content: "← ";
    margin-right: 5px;
}

.back-link:hover {
    text-decoration: underline;
}

/* ── Workflow section card ── */

.workflow-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

/* ── Search / prompt form ── */

.search-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.field-label {
    display: block;
    font-weight: 600;
    font-size: 1em;
    color: var(--text-color);
    margin-bottom: 6px;
}

.optional-label {
    font-weight: 400;
    color: var(--secondary-text);
    font-size: 0.92em;
}

.search-input {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1em;
    font-family: inherit;
    outline: none;
    resize: vertical;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    color: var(--text-color);
    background: white;
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(220, 0, 24, 0.08);
}

/* ── File upload ── */

.upload-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.template-hint {
    margin: 0;
    font-size: 0.9em;
    color: var(--secondary-text);
}

.template-hint a {
    color: var(--primary-color);
    text-decoration: none;
}

.template-hint a:hover {
    text-decoration: underline;
}

.file-input {
    display: none;
}

.file-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border: 2px dashed #cbd5e1;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95em;
    color: var(--secondary-text);
    transition: border-color 0.2s, background 0.2s;
    background: #fafafa;
}

.file-label:hover {
    border-color: var(--primary-color);
    background: #fff5f5;
    color: var(--primary-color);
}

.file-icon {
    font-size: 1.2em;
}

/* ── Buttons ── */

.button-row {
    display: flex;
    justify-content: flex-start;
    margin-top: 8px;
}

.primary-btn {
    display: inline-block;
    padding: 14px 36px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.05em;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.primary-btn:hover:not(:disabled) {
    background: #b30014;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(220, 0, 24, 0.25);
}

.primary-btn:disabled {
    background: #c0bfbf;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ── Error banner ── */

.error-banner {
    background: #fee2e2;
    color: #b91c1c;
    padding: 14px 18px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin-bottom: 20px;
    font-size: 0.95em;
}

.flash-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.flash-message {
    padding: 12px 16px;
    border-radius: 8px;
    border-left: 4px solid transparent;
    font-size: 0.95em;
}

.flash-warning {
    color: #92400e;
    background: #fffbeb;
    border-left-color: #f59e0b;
}

/* ── Dataset list (Page 2) ── */

.section-description {
    color: var(--secondary-text);
    margin-bottom: 20px;
    font-size: 0.97em;
}

.dataset-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 20px;
}

.dataset-card {
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    padding: 18px 20px;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    background: white;
    user-select: none;
}

.dataset-card:hover {
    border-color: #94a3b8;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

.dataset-card.selected {
    border-color: var(--primary-color);
    background: #fff5f5;
    box-shadow: 0 2px 12px rgba(220, 0, 24, 0.12);
}

.dataset-card-inner {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.dataset-select-indicator {
    flex-shrink: 0;
    margin-top: 3px;
}

.select-circle {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid #cbd5e1;
    transition: border-color 0.18s, background 0.18s;
    position: relative;
}

.select-circle.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.select-circle.active::after {
    content: "";
    position: absolute;
    top: 4px;
    left: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: white;
}

.dataset-content {
    flex: 1;
    min-width: 0;
}

.dataset-title {
    font-size: 1.08em;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 6px 0;
    line-height: 1.35;
}

.dataset-description {
    font-size: 0.93em;
    color: var(--secondary-text);
    line-height: 1.55;
    margin: 0 0 10px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dataset-publisher {
    display: inline-block;
    font-size: 0.83em;
    font-weight: 600;
    color: var(--secondary-text);
    background: var(--background-light);
    padding: 3px 10px;
    border-radius: 20px;
    letter-spacing: 0.01em;
}

.selection-status {
    font-size: 0.9em;
    color: var(--secondary-text);
    margin-bottom: 16px;
    padding: 10px 14px;
    background: #f8fafc;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
}

.no-results {
    text-align: center;
    color: var(--secondary-text);
    padding: 40px 20px;
    font-size: 1em;
}

/* ── Interoperability page (Page 3) ── */

.interop-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.interop-column {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 16px;
}

.interop-column-head {
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid #f0f0f4;
}

.interop-title {
    font-size: 1.08em;
    line-height: 1.35;
    margin: 0 0 6px 0;
    font-weight: 600;
}

.interop-publisher {
    font-size: 0.88em;
    color: var(--secondary-text);
    margin: 0;
}

.interop-explainer {
    margin-bottom: 16px;
    padding: 12px 14px;
    border: 1px solid #dbe7f3;
    background: rgba(219, 231, 243, 0.35);
    border-radius: 8px;
    color: #2f3f52;
    font-size: 0.92em;
}

.interop-explainer p {
    margin: 0;
}

.interop-explainer code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.92em;
    padding: 1px 5px;
    border-radius: 4px;
    background: rgba(47, 63, 82, 0.09);
    color: #233246;
}

.interop-legend {
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border: 1px solid #e2e8f0;
    border-radius: 999px;
    background: #ffffff;
    color: #374151;
    font-size: 0.85em;
}

.legend-swatch {
    display: inline-block;
    width: 18px;
    height: 12px;
    border-radius: 4px;
    border: 1px solid transparent;
    flex-shrink: 0;
}

.legend-swatch-identical {
    border-color: #1f9d55;
    background: rgba(34, 197, 94, 0.14);
}

.legend-swatch-harmonized {
    border: 2px solid #15803d;
    background: rgba(34, 197, 94, 0.2);
}

.legend-swatch-semantic {
    border-color: #c2410c;
    background: rgba(251, 146, 60, 0.2);
}

.attribute-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 62vh;
    overflow: auto;
}

.attribute-item {
    border: 1px solid #edf2f7;
    border-radius: 8px;
    padding: 10px;
    background: #fcfcfd;
}

.attribute-item-identical {
    border-color: #1f9d55;
    background: rgba(34, 197, 94, 0.14);
}

.attribute-item-harmonized {
    border-width: 2px;
    border-color: #15803d;
    background: rgba(34, 197, 94, 0.2);
    box-shadow: inset 0 0 0 1px rgba(21, 128, 61, 0.22);
}

.attribute-item-semantic {
    border-color: #c2410c;
    background: rgba(251, 146, 60, 0.2);
}

.attribute-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 4px;
}

.attribute-name {
    font-weight: 600;
    color: var(--text-color);
    word-break: break-word;
}

.attribute-harmonized-badge {
    display: inline-block;
    font-size: 0.74em;
    font-weight: 700;
    color: #0f5132;
    border: 1px solid rgba(21, 128, 61, 0.45);
    border-radius: 999px;
    padding: 2px 8px;
    background: rgba(22, 163, 74, 0.2);
    white-space: nowrap;
}

.attribute-semantic-badge {
    display: inline-block;
    font-size: 0.74em;
    font-weight: 700;
    color: #7c2d12;
    border: 1px solid rgba(194, 65, 12, 0.45);
    border-radius: 999px;
    padding: 2px 8px;
    background: rgba(249, 115, 22, 0.2);
    white-space: nowrap;
}

.attribute-required {
    display: inline-block;
    font-size: 0.76em;
    font-weight: 700;
    color: var(--primary-color);
    border: 1px solid rgba(220, 0, 24, 0.35);
    border-radius: 999px;
    padding: 2px 8px;
    background: #fff5f5;
    white-space: nowrap;
}

.attribute-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.82em;
    color: var(--secondary-text);
}

.instruction-list {
    margin-left: 20px;
    color: var(--text-color);
}

.instruction-list li {
    margin-bottom: 8px;
}

.status-live-box {
    padding: 6px 0;
}

.status-loading-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 3px solid #e2e8f0;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

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

.status-banner {
    border-radius: 10px;
    padding: 16px 18px;
    border: 1px solid #e2e8f0;
    margin-bottom: 14px;
}

.status-banner h3 {
    margin: 0 0 6px;
    font-size: 1.1em;
}

.status-banner p {
    margin: 0;
}

.status-success {
    border-color: #bbf7d0;
    background: #f0fdf4;
    color: #14532d;
}

.status-warning {
    border-color: #fed7aa;
    background: #fff7ed;
    color: #9a3412;
}

.status-error {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b;
}

.status-info {
    border-color: #bfdbfe;
    background: #eff6ff;
    color: #1e3a8a;
}

.error-detail-list {
    margin-top: 16px;
}

.error-log {
    white-space: pre-wrap;
    margin-top: 8px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.85em;
    line-height: 1.45;
    overflow-x: auto;
}

.result-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

.result-link-card {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 14px;
    background: #fcfcfd;
}

.result-link-card .primary-btn {
    margin-top: 8px;
    padding: 10px 16px;
    font-size: 0.95em;
}

/* ── Footer ── */

footer {
    background: #f7f7f7;
    padding: 1.5rem 0;
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
}

.footer-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-links a {
    color: #555;
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-info {
    color: #888;
    font-size: 0.875rem;
}

/* ── Responsive ── */

@media (max-width: 768px) {
    .container {
        padding: 2rem 20px 1rem;
    }

    .page-header h1 {
        font-size: 1.9rem;
    }

    .footer-content {
        padding: 0 20px;
        flex-direction: column;
        align-items: flex-start;
    }

    .primary-btn {
        width: 100%;
        text-align: center;
    }

    .button-row {
        justify-content: stretch;
    }
}

@media (min-width: 900px) {
    .interop-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1200px) {
    .interop-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}