:root {
    color-scheme: light;
    --background: #f3f6fb;
    --surface: #ffffff;
    --surface-soft: #f7f9fc;
    --ink: #172033;
    --ink-soft: #5e687c;
    --line: #dce2eb;
    --line-strong: #c5cfdd;
    --primary: #2856d8;
    --primary-dark: #1f43aa;
    --primary-soft: #eaf0ff;
    --success: #147a52;
    --success-soft: #e8f7f0;
    --warning: #8a5a00;
    --warning-soft: #fff7df;
    --shadow: 0 20px 50px rgba(35, 52, 84, 0.10);
    --radius-large: 22px;
    --radius-medium: 14px;
    --radius-small: 9px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.site-page {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(65, 108, 231, 0.12), transparent 30rem),
        var(--background);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.65;
}

a {
    color: var(--primary);
}

a:hover {
    color: var(--primary-dark);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
    outline: 3px solid rgba(40, 86, 216, 0.25);
    outline-offset: 3px;
    border-radius: 5px;
}

.page-shell {
    width: min(1080px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0 48px;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 32px;
}

.brand {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    font-weight: 750;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.brand:hover {
    color: var(--ink);
}

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #fff;
    background: var(--primary);
    border-radius: 12px;
    box-shadow: 0 9px 22px rgba(40, 86, 216, 0.25);
    font-size: 13px;
    letter-spacing: 0.02em;
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.main-nav a {
    padding: 8px 10px;
    color: var(--ink-soft);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 650;
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
    color: var(--primary);
    background: var(--primary-soft);
}

.privacy-pill {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    color: var(--success);
    background: var(--success-soft);
    border: 1px solid #c6ead9;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 650;
}

.privacy-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
}

.article-hero {
    max-width: 830px;
    margin: 54px 0 30px;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: 0 0 16px;
    color: var(--ink-soft);
    font-size: 13px;
}

.breadcrumbs a {
    color: var(--ink-soft);
    text-decoration: none;
}

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

.eyebrow {
    margin: 0 0 8px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.article-hero h1 {
    max-width: 820px;
    margin: 0;
    font-size: clamp(34px, 6vw, 54px);
    line-height: 1.06;
    letter-spacing: -0.045em;
}

.article-lead {
    max-width: 760px;
    margin: 18px 0 0;
    color: var(--ink-soft);
    font-size: 18px;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 24px;
    align-items: start;
}

.article-card,
.side-card,
.contact-card {
    background: var(--surface);
    border: 1px solid rgba(197, 207, 221, 0.85);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow);
}

.article-card {
    padding: clamp(24px, 5vw, 48px);
}

.article-card > :first-child {
    margin-top: 0;
}

.article-card h2 {
    margin: 42px 0 12px;
    font-size: clamp(23px, 3vw, 30px);
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.article-card h3 {
    margin: 28px 0 9px;
    font-size: 19px;
    letter-spacing: -0.015em;
}

.article-card p,
.article-card li {
    color: #3e4a60;
}

.article-card ul,
.article-card ol {
    padding-left: 22px;
}

.article-card li + li {
    margin-top: 8px;
}

.article-card code {
    padding: 2px 6px;
    color: #24314a;
    background: #edf1f7;
    border-radius: 5px;
    font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
    font-size: 0.9em;
}

.code-block {
    overflow-x: auto;
    margin: 18px 0;
    padding: 18px;
    color: #e7ecf5;
    background: #172033;
    border-radius: var(--radius-medium);
    font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.callout {
    margin: 24px 0;
    padding: 18px 20px;
    color: #294576;
    background: var(--primary-soft);
    border: 1px solid #cddaff;
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-medium);
}

.callout strong {
    color: #203b6b;
}

.callout-warning {
    color: #6f4a00;
    background: var(--warning-soft);
    border-color: #f0dc9a;
    border-left-color: #d79a19;
}

.side-card {
    position: sticky;
    top: 20px;
    padding: 20px;
    box-shadow: 0 12px 30px rgba(35, 52, 84, 0.07);
}

.side-card h2 {
    margin: 0 0 12px;
    font-size: 15px;
}

.side-card nav {
    display: grid;
    gap: 8px;
}

.side-card a {
    color: var(--ink-soft);
    font-size: 13px;
    text-decoration: none;
}

.side-card a:hover {
    color: var(--primary);
}

.primary-link,
.secondary-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 9px 15px;
    border-radius: var(--radius-small);
    font-weight: 700;
    text-decoration: none;
}

.primary-link {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 9px 18px rgba(40, 86, 216, 0.20);
}

.primary-link:hover {
    color: #fff;
    background: var(--primary-dark);
}

.secondary-link {
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
}

.resource-section {
    margin-top: 32px;
}

.resource-heading {
    max-width: 700px;
    margin-bottom: 18px;
}

.resource-heading h2 {
    margin: 0 0 7px;
    font-size: clamp(24px, 4vw, 34px);
    letter-spacing: -0.03em;
}

.resource-heading p {
    margin: 0;
    color: var(--ink-soft);
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.resource-card {
    display: flex;
    min-height: 170px;
    flex-direction: column;
    padding: 22px;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
    text-decoration: none;
    transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.resource-card:hover {
    color: var(--ink);
    border-color: #b9c8f3;
    box-shadow: 0 14px 28px rgba(35, 52, 84, 0.08);
    transform: translateY(-2px);
}

.resource-card small {
    color: var(--primary);
    font-weight: 750;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.resource-card h3 {
    margin: 10px 0 7px;
    font-size: 18px;
    line-height: 1.25;
}

.resource-card p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 14px;
}

.faq-list {
    display: grid;
    gap: 12px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
}

.faq-item summary {
    padding: 18px 20px;
    cursor: pointer;
    font-weight: 720;
    list-style-position: inside;
}

.faq-answer {
    padding: 0 20px 18px;
    color: #3e4a60;
}

.faq-answer p {
    margin: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.contact-card {
    padding: 26px;
    box-shadow: 0 12px 30px rgba(35, 52, 84, 0.07);
}

.contact-card h2 {
    margin: 0 0 8px;
    font-size: 21px;
}

.contact-card p {
    margin: 0 0 18px;
    color: var(--ink-soft);
}

.spaced-card {
    margin-top: 20px;
}

.site-footer {
    margin: 32px auto 0;
    padding-top: 22px;
    color: var(--ink-soft);
    border-top: 1px solid var(--line);
    font-size: 13px;
    text-align: center;
}

.site-footer p {
    margin: 7px 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 16px;
    margin: 10px 0;
}

.footer-links a {
    color: var(--ink-soft);
    text-decoration: none;
}

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

.updated-date {
    color: var(--ink-soft);
    font-size: 13px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 860px) {
    .site-header {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .main-nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .side-card {
        position: static;
        order: -1;
    }

    .resource-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .page-shell {
        width: min(100% - 20px, 1080px);
        padding-top: 20px;
    }

    .site-header {
        flex-direction: column;
    }

    .main-nav {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .main-nav a {
        background: rgba(255, 255, 255, 0.65);
        text-align: center;
    }

    .article-hero {
        margin-top: 38px;
    }

    .article-lead {
        font-size: 16px;
    }

    .article-card {
        padding: 22px 18px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

/* Portal y herramientas */
.portal-header {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 44px;
}

.portal-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
}

.portal-nav a {
    padding: 8px 11px;
    color: var(--ink-soft);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 680;
    text-decoration: none;
}

.portal-nav a:hover,
.portal-nav a[aria-current="page"] {
    color: var(--primary);
    background: var(--primary-soft);
}

.portal-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: clamp(28px, 6vw, 72px);
    align-items: center;
    padding: 34px 0 52px;
}

.portal-hero h1,
.tool-hero h1 {
    margin: 0;
    font-size: clamp(38px, 7vw, 66px);
    line-height: 1.02;
    letter-spacing: -0.052em;
}

.portal-hero-copy,
.tool-hero-copy {
    max-width: 720px;
    margin: 20px 0 0;
    color: var(--ink-soft);
    font-size: 18px;
}

.hero-panel {
    padding: 26px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(197, 207, 221, 0.85);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.hero-panel-label {
    margin: 0 0 12px;
    color: var(--ink-soft);
    font-size: 13px;
    font-weight: 700;
}

.tool-search {
    width: 100%;
    min-height: 50px;
    padding: 12px 15px;
    color: var(--ink);
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 11px;
    font: inherit;
}

.tool-search:focus {
    background: #fff;
    border-color: var(--primary);
    outline: 3px solid rgba(40, 86, 216, 0.12);
}

.trust-list {
    display: grid;
    gap: 10px;
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.trust-list li {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    color: #40506b;
    font-size: 14px;
}

.trust-check {
    display: grid;
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
    place-items: center;
    color: var(--success);
    background: var(--success-soft);
    border-radius: 50%;
    font-size: 11px;
    font-weight: 800;
}

.section-block {
    margin-top: 56px;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(28px, 5vw, 42px);
    line-height: 1.1;
    letter-spacing: -0.04em;
}

.section-heading p {
    max-width: 600px;
    margin: 8px 0 0;
    color: var(--ink-soft);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.tool-card-link {
    display: flex;
    min-height: 220px;
    flex-direction: column;
    padding: 24px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
    text-decoration: none;
    transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.tool-card-link:hover {
    color: var(--ink);
    border-color: #b8c7f2;
    box-shadow: 0 16px 32px rgba(35, 52, 84, 0.09);
    transform: translateY(-3px);
}

.tool-card-link[hidden] {
    display: none;
}

.tool-mark {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    color: var(--primary);
    background: var(--primary-soft);
    border: 1px solid #d6e0ff;
    border-radius: 13px;
    font-size: 11px;
    font-weight: 820;
    letter-spacing: 0.03em;
}

.tool-card-link h3 {
    margin: 20px 0 8px;
    font-size: 20px;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.tool-card-link p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 14px;
}

.tool-card-arrow {
    margin-top: auto;
    padding-top: 18px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 720;
}

.empty-filter {
    grid-column: 1 / -1;
    padding: 40px 20px;
    color: var(--ink-soft);
    background: var(--surface-soft);
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-medium);
    text-align: center;
}

.value-grid,
.content-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.value-card,
.content-panel {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
}

.value-card h3,
.content-panel h3 {
    margin: 0 0 8px;
    font-size: 18px;
}

.value-card p,
.content-panel p,
.content-panel li {
    color: var(--ink-soft);
    font-size: 14px;
}

.tool-hero {
    max-width: 900px;
    padding: 26px 0 34px;
}

.tool-hero h1 {
    font-size: clamp(36px, 6vw, 58px);
}

.tool-shell {
    overflow: hidden;
    background: var(--surface);
    border: 1px solid rgba(197, 207, 221, 0.9);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow);
}

.tool-shell-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    background: var(--surface-soft);
    border-bottom: 1px solid var(--line);
}

.tool-shell-header h2 {
    margin: 0;
    font-size: 18px;
    letter-spacing: -0.02em;
}

.local-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--success);
    font-size: 12px;
    font-weight: 700;
}

.tool-body {
    padding: clamp(20px, 4vw, 34px);
}

.field-group {
    margin-bottom: 18px;
}

.field-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.field-label-row label,
.field-group > label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 720;
}

.field-help,
.field-counter {
    color: var(--ink-soft);
    font-size: 12px;
}

.tool-textarea,
.tool-input,
.tool-select {
    width: 100%;
    color: #24314a;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 11px;
    font: inherit;
    transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.tool-textarea {
    min-height: 190px;
    resize: vertical;
    padding: 16px;
    font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
    font-size: 13px;
    line-height: 1.6;
}

.tool-textarea.output {
    min-height: 150px;
    background: #f1f4f8;
}

.tool-input,
.tool-select {
    min-height: 44px;
    padding: 9px 12px;
}

.tool-textarea:focus,
.tool-input:focus,
.tool-select:focus {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(40, 86, 216, 0.08);
    outline: none;
}

.drop-field {
    display: grid;
    min-height: 145px;
    place-items: center;
    padding: 22px;
    color: var(--ink-soft);
    background: var(--surface-soft);
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-medium);
    cursor: pointer;
    text-align: center;
    transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.drop-field:hover,
.drop-field.is-dragging {
    color: var(--primary);
    background: var(--primary-soft);
    border-color: var(--primary);
}

.drop-field strong {
    display: block;
    margin-bottom: 4px;
    color: var(--ink);
    font-size: 16px;
}

.file-summary {
    margin-top: 10px;
    color: var(--ink-soft);
    font-size: 13px;
}

.tool-actions,
.result-actions,
.inline-fields {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.tool-actions {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.tool-button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 16px;
    border: 0;
    border-radius: var(--radius-small);
    cursor: pointer;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    transition: transform 140ms ease, background 160ms ease, opacity 160ms ease;
}

.tool-button:hover:not(:disabled) {
    transform: translateY(-1px);
}

.tool-button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.tool-button-primary {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 9px 18px rgba(40, 86, 216, 0.2);
}

.tool-button-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.tool-button-secondary {
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
}

.tool-button-secondary:hover:not(:disabled) {
    background: var(--surface-soft);
}

.tool-button-danger {
    color: #a32232;
    background: #fff1f2;
}

.tool-status {
    margin-top: 16px;
    padding: 12px 14px;
    border: 1px solid;
    border-radius: var(--radius-small);
    font-size: 14px;
}

.tool-status[hidden],
.tool-result[hidden],
.image-preview[hidden],
.pdf-frame[hidden] {
    display: none;
}

.tool-status.info {
    color: #294576;
    background: var(--primary-soft);
    border-color: #cddaff;
}

.tool-status.success {
    color: var(--success);
    background: var(--success-soft);
    border-color: #c6ead9;
}

.tool-status.error {
    color: #a32232;
    background: #fff0f1;
    border-color: #f2c8ce;
}

.tool-result {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.result-header h3 {
    margin: 0;
    font-size: 18px;
}

.result-meta {
    color: var(--ink-soft);
    font-size: 13px;
}

.pdf-frame {
    display: block;
    width: 100%;
    height: 640px;
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
    background: #eef1f5;
}

.image-preview {
    display: block;
    width: 100%;
    min-height: 260px;
    max-height: 480px;
    padding: 18px;
    background:
        linear-gradient(45deg, #edf0f5 25%, transparent 25%),
        linear-gradient(-45deg, #edf0f5 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #edf0f5 75%),
        linear-gradient(-45deg, transparent 75%, #edf0f5 75%),
        #fff;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    background-size: 20px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
    object-fit: contain;
}

.data-table-wrap {
    max-height: 540px;
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
}

.preview-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
    white-space: nowrap;
}

.preview-table th,
.preview-table td {
    max-width: 360px;
    padding: 10px 12px;
    overflow: hidden;
    border-right: 1px solid #e8ecf2;
    border-bottom: 1px solid #e8ecf2;
    text-align: left;
    text-overflow: ellipsis;
}

.preview-table th {
    position: sticky;
    z-index: 1;
    top: 0;
    color: #38465e;
    background: #f1f4f8;
}

.preview-table tbody tr:nth-child(even) td {
    background: #fbfcfe;
}

.option-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.check-field,
.check-row {
    display: flex;
    align-items: center;
    gap: 9px;
    color: #40506b;
    font-size: 14px;
}

.check-row input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.json-rows {
    display: grid;
    gap: 9px;
}

.json-row {
    display: grid;
    grid-template-columns: minmax(120px, 0.8fr) minmax(160px, 1.3fr) 130px 42px;
    gap: 8px;
    align-items: center;
}

.qr-output {
    display: grid;
    min-height: 300px;
    place-items: center;
    padding: 24px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-medium);
}

.qr-output img,
.qr-output canvas {
    max-width: 100%;
    height: auto !important;
}

.tool-content {
    margin-top: 44px;
}

.instructions-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
    gap: 18px;
    align-items: start;
}

.content-card {
    padding: clamp(22px, 4vw, 34px);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-large);
}

.content-card h2 {
    margin: 0 0 14px;
    font-size: clamp(24px, 4vw, 32px);
    letter-spacing: -0.03em;
}

.content-card h3 {
    margin: 26px 0 8px;
    font-size: 18px;
}

.content-card p,
.content-card li {
    color: #465269;
}

.step-list {
    padding-left: 22px;
}

.step-list li + li {
    margin-top: 10px;
}

.example-box {
    overflow-x: auto;
    margin: 14px 0;
    padding: 16px;
    color: #e7ecf5;
    background: #172033;
    border-radius: 11px;
    font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
    font-size: 12px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.related-tools {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 14px;
}

.related-link {
    padding: 18px;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 11px;
    font-weight: 700;
    text-decoration: none;
}

.related-link:hover {
    color: var(--primary);
    border-color: #b8c7f2;
}

.legal-note {
    margin-top: 20px;
    color: var(--ink-soft);
    font-size: 12px;
}

@media (max-width: 900px) {
    .portal-hero,
    .instructions-grid {
        grid-template-columns: 1fr;
    }

    .tools-grid,
    .value-grid,
    .content-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .portal-header {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .portal-nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 620px) {
    .portal-header {
        flex-direction: column;
    }

    .portal-nav {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .portal-nav a {
        background: rgba(255, 255, 255, 0.68);
        text-align: center;
    }

    .portal-hero {
        padding-top: 12px;
    }

    .portal-hero-copy,
    .tool-hero-copy {
        font-size: 16px;
    }

    .tools-grid,
    .value-grid,
    .content-grid,
    .related-tools,
    .option-grid {
        grid-template-columns: 1fr;
    }

    .section-heading,
    .result-header,
    .tool-shell-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .tool-button,
    .tool-actions .primary-link,
    .result-actions .tool-button {
        width: 100%;
    }

    .json-row {
        grid-template-columns: 1fr;
        padding: 12px;
        background: var(--surface-soft);
        border-radius: 10px;
    }

    .json-row .tool-button {
        width: auto;
        justify-self: end;
    }

    .pdf-frame {
        height: 520px;
    }
}