:root {
    color-scheme: light;
    --bg: #f7f7f4;
    --bg-grid: #efeee8;
    --surface: #ffffff;
    --surface-quiet: #fafaf7;
    --surface-lift: #fffefb;
    --surface-ink: #26251e;
    --text: #26251e;
    --muted: #5a5852;
    --subtle: #807d72;
    --line: #e6e5e0;
    --line-strong: #cfcdc4;
    --accent: #f54e00;
    --accent-dark: #d04200;
    --blue: #3a63bf;
    --amber: #c08532;
    --danger: #b42318;
    --success: #1f8a65;
    --shadow: 0 0 0 1px var(--line);
    --radius: 8px;
    --radius-sm: 6px;
    --space-page: clamp(24px, 4vw, 56px);
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background-color: var(--bg);
    background-image:
        linear-gradient(var(--bg-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
    background-size: 32px 32px;
    color: var(--text);
    font-family: var(--sans);
    font-feature-settings: "ss01", "ss02";
    line-height: 1.5;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, rgb(255 255 255 / 0.72), rgb(247 247 244 / 0.96) 46%, rgb(239 238 232 / 0.88));
}

a {
    color: inherit;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

button,
input,
textarea {
    font: inherit;
}

button {
    border: 0;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 3px solid rgb(49 87 213 / 0.32);
    outline-offset: 2px;
}

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

.skip-link {
    position: absolute;
    left: 1rem;
    top: 1rem;
    z-index: 10;
    transform: translateY(-140%);
    background: var(--surface-ink);
    color: var(--surface);
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header,
.site-footer,
.tool-shell,
.landing-shell,
.content-grid,
.faq-grid,
.examples-content,
.icon-library,
.workflow-content {
    width: min(1360px, calc(100% - var(--space-page)));
    margin-left: auto;
    margin-right: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    padding: 12px 0 10px;
}

.topbar,
.site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.topbar {
    min-height: 64px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgb(250 250 247 / 0.92);
    padding: 10px 12px;
    box-shadow: 0 0 0 1px rgb(255 255 255 / 0.54);
    backdrop-filter: blur(16px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background: var(--surface-ink);
    color: var(--surface);
    font-family: var(--mono);
    font-size: 0.82rem;
    box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.12);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    box-shadow: 0 1px 1px rgb(18 20 24 / 0.04);
}

.nav-toggle span {
    grid-area: 1 / 1;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 160ms ease, opacity 160ms ease;
}

.nav-toggle span:first-child {
    transform: translateY(-6px);
}

.nav-toggle span:last-child {
    transform: translateY(6px);
}

.topbar.is-open .nav-toggle span:first-child {
    transform: rotate(45deg);
}

.topbar.is-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}

.topbar.is-open .nav-toggle span:last-child {
    transform: rotate(-45deg);
}

.nav-links,
.site-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    color: var(--muted);
    font-size: 0.9rem;
}

.nav-links a,
.site-footer a {
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.72rem;
    text-decoration: none;
    transition: background-color 160ms ease, color 160ms ease;
}

.nav-links a:hover,
.site-footer a:hover {
    background: var(--surface-quiet);
    color: var(--text);
}

.nav-links .nav-cta {
    background: var(--accent);
    color: var(--surface);
    font-weight: 650;
}

.nav-links .nav-cta:hover {
    background: var(--accent-dark);
    color: var(--surface);
}

main {
    width: 100%;
}

#editor,
#examples,
#workflows,
#faq {
    scroll-margin-top: 96px;
}

.tool-shell {
    padding: 16px 0 44px;
}

.tool-intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
    gap: 24px;
    align-items: end;
    margin: 8px 0 22px;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent-dark);
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 650;
    letter-spacing: 0;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 10px;
    max-width: 820px;
    font-size: 3.25rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0;
}

h2 {
    margin-bottom: 0;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: 0;
}

h3 {
    margin-bottom: 0.55rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
}

.summary {
    max-width: 680px;
    margin: 0;
    color: var(--muted);
    font-size: 1.08rem;
    line-height: 1.65;
}

.intro-facts {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
    margin: 0;
}

.intro-facts div {
    flex: 1 1 122px;
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgb(255 255 255 / 0.82);
    padding: 12px;
    box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.62);
    backdrop-filter: blur(12px);
}

.intro-facts dt {
    color: var(--subtle);
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0;
}

.intro-facts dd {
    margin: 4px 0 0;
    color: var(--text);
    font-size: 0.96rem;
    font-weight: 700;
}

.workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
    gap: 18px;
    align-items: stretch;
}

.icon-library {
    margin-top: 16px;
    padding: 16px 0 0;
}

.icon-library-header {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: end;
    border-top: 1px solid var(--line);
    padding-top: 18px;
}

.icon-library-copy {
    max-width: 780px;
    margin-bottom: 0;
    color: var(--muted);
}

.icon-library-license {
    max-width: 280px;
    margin: 0;
    color: var(--subtle);
    font-size: 0.85rem;
    text-align: right;
}

.icon-library-controls {
    display: grid;
    grid-template-columns: minmax(220px, 0.8fr) repeat(2, minmax(0, 1fr));
    gap: 12px;
    align-items: start;
    margin-top: 14px;
}

.search-field,
.filter-field {
    min-width: 0;
}

.search-field label,
.filter-field > span {
    display: block;
    margin-bottom: 6px;
    color: var(--subtle);
    font-size: 0.78rem;
    font-weight: 850;
    letter-spacing: 0;
    text-transform: uppercase;
}

.search-field input {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    padding: 0.62rem 0.76rem;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.filter-chip {
    min-height: 36px;
    cursor: pointer;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    padding: 0.35rem 0.62rem;
    font-size: 0.86rem;
    font-weight: 800;
}

.filter-chip:hover,
.filter-chip.is-active {
    border-color: var(--accent);
    color: var(--accent-dark);
}

#icon-library-status {
    margin: 12px 0 10px;
}

.icon-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 10px;
}

.icon-card {
    min-width: 0;
    display: grid;
    gap: 10px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 10px;
}

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

.icon-preview {
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-quiet);
}

.icon-preview svg {
    width: 48px;
    height: 48px;
}

.icon-card-body {
    min-width: 0;
}

.icon-card h3 {
    margin-bottom: 0.2rem;
    font-size: 0.92rem;
}

.icon-card p {
    margin-bottom: 0;
    color: var(--subtle);
    font-size: 0.78rem;
}

.icon-load-button {
    width: 100%;
    padding: 0.48rem 0.5rem;
    font-size: 0.84rem;
}

.editor-pane,
.preview-pane,
.policy-page {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.editor-pane,
.preview-pane {
    min-width: 0;
    padding: clamp(14px, 2vw, 20px);
}

.pane-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    min-height: 52px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--line);
    padding-bottom: 12px;
}

.status,
.editor-stats,
.validation-panel p {
    color: var(--subtle);
    font-size: 0.84rem;
}

.status {
    margin: 4px 0 0;
    font-family: var(--mono);
}

.status.is-error,
.validation-panel.is-error p {
    color: var(--danger);
}

.status.is-ok,
.validation-panel.is-ok p {
    color: var(--success);
}

.editor-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
    text-align: right;
}

.editor-stats span,
.sample-chip {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-quiet);
    padding: 0.36rem 0.68rem;
    font-family: var(--mono);
}

#svg-editor {
    width: 100%;
    min-height: 520px;
    resize: vertical;
    border: 1px solid #242a31;
    border-radius: var(--radius);
    background:
        linear-gradient(90deg, #111820 0 46px, transparent 46px),
        linear-gradient(#151a22 50%, #19212a 50%);
    background-size: auto, 100% 3rem;
    color: #f5f7fa;
    caret-color: #73f1dc;
    padding: 18px 18px 18px 60px;
    font-family: var(--mono);
    font-size: 0.9rem;
    line-height: 1.5;
    tab-size: 2;
    box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.08), 0 16px 32px -24px rgb(0 0 0 / 0.58);
}

#svg-editor::selection {
    background: rgb(49 87 213 / 0.52);
}

.toolbar,
.examples,
.zoom-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.toolbar {
    margin-top: 14px;
}

.asset-library {
    margin-top: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-lift);
    padding: 12px;
}

.asset-library-header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.asset-library h3 {
    margin: 0;
    font-size: 0.88rem;
}

.asset-library p {
    margin: 3px 0 0;
    color: var(--subtle);
    font-size: 0.82rem;
}

.examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
}

.button,
.icon-button,
.sample-chip {
    min-height: 44px;
    cursor: pointer;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    padding: 0.66rem 0.95rem;
    font-size: 0.92rem;
    font-weight: 650;
    text-decoration: none;
    box-shadow: 0 1px 1px rgb(0 0 0 / 0.03);
}

.button-icon,
.control-icon {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.button-icon svg,
.control-icon {
    display: block;
    width: 100%;
    height: 100%;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.button.primary .button-icon svg {
    fill: currentColor;
    stroke: none;
}

.button:hover,
.sample-chip:hover,
.icon-button:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

.button.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    box-shadow: 0 1px 1px rgb(0 0 0 / 0.05), 0 12px 24px -16px rgb(11 127 109 / 0.72);
}

.button.primary:hover {
    background: var(--accent-dark);
}

.sample-chip {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    min-width: 0;
    background: var(--surface);
    color: var(--text);
    font-family: var(--sans);
    font-size: 0.88rem;
    font-weight: 650;
    text-align: left;
    box-shadow: 0 1px 1px rgb(18 20 24 / 0.03);
}

.sample-chip small {
    display: block;
    margin-top: 2px;
    color: var(--subtle);
    font-size: 0.74rem;
    font-weight: 500;
}

.sample-preview {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgb(11 127 109 / 0.24);
    border-radius: var(--radius);
    background: rgb(11 127 109 / 0.08);
    color: var(--accent);
}

.sample-preview.blue {
    border-color: rgb(49 87 213 / 0.24);
    background: rgb(49 87 213 / 0.08);
    color: var(--blue);
}

.sample-preview.amber {
    border-color: rgb(183 91 0 / 0.24);
    background: rgb(183 91 0 / 0.08);
    color: var(--amber);
}

.sample-preview svg {
    width: 30px;
    height: 30px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.sample-preview svg rect,
.sample-preview svg circle {
    fill: currentColor;
    stroke: none;
}

.sample-preview svg path,
.sample-preview svg polygon {
    fill: none;
}

.icon-button {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font-family: var(--mono);
    font-weight: 650;
}

.preview-stage {
    display: grid;
    place-items: center;
    height: 520px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background-color: #ffffff;
    background-image:
        linear-gradient(45deg, #edf2ef 25%, transparent 25%),
        linear-gradient(-45deg, #edf2ef 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #edf2ef 75%),
        linear-gradient(-45deg, transparent 75%, #edf2ef 75%);
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    background-size: 20px 20px;
}

#preview-frame {
    width: 100%;
    height: 100%;
    border: 0;
    background: transparent;
    transform-origin: center;
    transition: transform 160ms ease;
}

#preview-frame.zoom-40 { transform: scale(0.4); }
#preview-frame.zoom-50 { transform: scale(0.5); }
#preview-frame.zoom-60 { transform: scale(0.6); }
#preview-frame.zoom-70 { transform: scale(0.7); }
#preview-frame.zoom-80 { transform: scale(0.8); }
#preview-frame.zoom-90 { transform: scale(0.9); }
#preview-frame.zoom-100 { transform: scale(1.0); }
#preview-frame.zoom-110 { transform: scale(1.1); }
#preview-frame.zoom-120 { transform: scale(1.2); }
#preview-frame.zoom-130 { transform: scale(1.3); }
#preview-frame.zoom-140 { transform: scale(1.4); }
#preview-frame.zoom-150 { transform: scale(1.5); }
#preview-frame.zoom-160 { transform: scale(1.6); }
#preview-frame.zoom-170 { transform: scale(1.7); }
#preview-frame.zoom-180 { transform: scale(1.8); }
#preview-frame.zoom-190 { transform: scale(1.9); }
#preview-frame.zoom-200 { transform: scale(2.0); }
#preview-frame.zoom-210 { transform: scale(2.1); }
#preview-frame.zoom-220 { transform: scale(2.2); }
#preview-frame.zoom-230 { transform: scale(2.3); }
#preview-frame.zoom-240 { transform: scale(2.4); }
#preview-frame.zoom-250 { transform: scale(2.5); }

.validation-panel {
    margin-top: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-lift);
    padding: 12px;
}

.validation-panel strong {
    display: block;
    margin-bottom: 4px;
    font-size: 0.9rem;
    font-weight: 600;
}

.validation-panel p {
    margin: 0;
}

.content-band {
    padding: 58px 0;
    border-top: 1px solid var(--line);
    background: rgb(255 255 255 / 0.88);
}

.content-band.muted {
    background: rgb(240 245 243 / 0.94);
}

.content-grid,
.faq-grid,
.examples-content,
.workflow-content {
    display: grid;
    gap: 24px;
}

.content-grid {
    grid-template-columns: 1.05fr 0.95fr;
}

.content-grid p,
.content-grid li,
.faq-grid p,
.policy-page p {
    color: var(--muted);
}

.content-grid ul {
    margin: 0;
    padding-left: 1.2rem;
}

.content-grid li + li {
    margin-top: 0.45rem;
}

.examples-band {
    background: #f8fbfa;
}

.examples-content {
    grid-template-columns: minmax(260px, 0.52fr) minmax(0, 1fr);
    align-items: start;
}

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

.workflow-content {
    gap: 18px;
}

.workflow-content > div:first-child {
    max-width: 760px;
}

.workflow-content p,
.workflow-grid p {
    color: var(--muted);
}

.workflow-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
    border-top: 1px solid var(--line);
    padding-top: 20px;
}

.workflow-grid article {
    min-width: 0;
    border-top: 2px solid var(--line-strong);
    padding-top: 14px;
}

.workflow-grid article:hover {
    border-top-color: var(--surface-ink);
}

.workflow-grid p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.guide-link-grid,
.landing-link-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.guide-link-grid a,
.landing-link-list a {
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    padding: 0.65rem 0.8rem;
    font-weight: 800;
    text-decoration: none;
}

.guide-link-grid a:hover,
.landing-link-list a:hover {
    border-color: var(--surface-ink);
    background: var(--surface-quiet);
}

.snippet-card {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 16px;
    box-shadow: 0 1px 1px rgb(0 0 0 / 0.03), inset 0 0 0 1px rgb(255 255 255 / 0.7);
}

.snippet-card p {
    margin-bottom: 12px;
    color: var(--muted);
    font-size: 0.9rem;
}

.snippet-card pre {
    min-height: 132px;
    max-height: 220px;
    margin: 0;
    overflow: auto;
    border-radius: var(--radius);
    background: var(--surface-ink);
    color: #f5f7fa;
    padding: 12px;
    font-family: var(--mono);
    font-size: 0.78rem;
    line-height: 1.55;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.snippet-card code {
    font-family: inherit;
}

.faq-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.faq-grid h2 {
    color: var(--surface-ink);
    font-size: 1.6rem;
    font-weight: 600;
}

.faq-grid article {
    min-width: 0;
}

.site-footer {
    padding: 28px 0 36px;
    color: var(--muted);
    font-size: 0.92rem;
}

.page-shell {
    width: min(860px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0 64px;
}

.policy-page {
    padding: clamp(24px, 4vw, 42px);
}

.policy-page h1 {
    margin: 6px 0 18px;
    font-size: clamp(2.2rem, 6vw, 3.4rem);
}

.policy-page p:last-child {
    margin-bottom: 0;
}

.policy-section {
    margin-top: 24px;
    border-top: 1px solid var(--line);
    padding-top: 20px;
}

.policy-section h2 {
    margin-bottom: 10px;
    color: var(--surface-ink);
    font-size: 1.15rem;
}

.landing-shell {
    padding: 16px 0 56px;
}

.landing-hero {
    max-width: 860px;
    padding: 24px 0 30px;
}

.landing-summary {
    max-width: 780px;
    color: var(--muted);
    font-size: 1.05rem;
}

.landing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

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

.landing-card,
.landing-tool,
.landing-example,
.landing-faq,
.landing-links {
    border-top: 1px solid var(--line);
    padding: 28px 0;
}

.landing-card {
    min-width: 0;
    border: 1px solid var(--line-strong);
    border-left: 4px solid var(--blue);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 16px;
}

.landing-card p,
.landing-tool p,
.landing-example p,
.landing-faq p {
    color: var(--muted);
}

.landing-tool {
    display: grid;
    grid-template-columns: minmax(280px, 0.86fr) minmax(280px, 1fr);
    gap: 16px;
    align-items: start;
}

.landing-tool-copy {
    grid-column: 1 / -1;
    max-width: 840px;
}

.landing-tool-field,
.landing-tool-options,
.landing-tool-actions,
.landing-tool-preview {
    min-width: 0;
}

.landing-tool-field {
    display: grid;
    gap: 8px;
}

.landing-tool-field label,
.landing-tool-options label {
    color: var(--surface-ink);
    font-weight: 700;
}

.landing-tool-field textarea,
.landing-tool-field input[type="file"],
.landing-tool-options input[type="number"] {
    width: 100%;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
}

.landing-tool-field textarea {
    min-height: 240px;
    resize: vertical;
    padding: 14px;
    font-family: var(--mono);
    font-size: 0.86rem;
    line-height: 1.55;
}

.landing-tool-field input[type="file"] {
    padding: 12px;
}

.landing-tool-options {
    display: grid;
    grid-template-columns: repeat(4, minmax(120px, 1fr));
    gap: 10px;
}

.landing-tool-options input[type="number"] {
    margin-top: 6px;
    padding: 0.62rem 0.7rem;
}

.landing-tool-options .inline-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.landing-tool-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.landing-tool > .status {
    align-self: center;
    margin: 0;
}

.landing-tool-preview {
    grid-column: 2;
    grid-row: 2 / span 5;
    min-height: 360px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background:
        linear-gradient(45deg, #e6e5e0 25%, transparent 25%),
        linear-gradient(-45deg, #e6e5e0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e6e5e0 75%),
        linear-gradient(-45deg, transparent 75%, #e6e5e0 75%);
    background-color: var(--surface);
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    background-size: 16px 16px;
    overflow: hidden;
}

.landing-tool-preview iframe {
    width: 100%;
    height: 100%;
    min-height: 360px;
    border: 0;
    background: transparent;
}

.landing-example {
    display: grid;
    grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.landing-example pre {
    min-width: 0;
    max-height: 260px;
    margin: 0;
    overflow: auto;
    border-radius: var(--radius);
    background: var(--surface-ink);
    color: #e8eef8;
    padding: 14px;
    font-family: var(--mono);
    font-size: 0.82rem;
    line-height: 1.55;
}

.landing-example code {
    font-family: inherit;
}

.landing-shell {
    margin-top: 18px;
    margin-bottom: 42px;
    border: 1px solid #262626;
    border-radius: 20px;
    background: #090909;
    color: #ffffff;
    padding: clamp(22px, 4vw, 46px);
    box-shadow: 0 24px 80px rgb(17 21 28 / 0.16);
}

.landing-shell .eyebrow {
    color: #8fcaff;
}

.landing-hero {
    max-width: 980px;
    padding-top: 8px;
}

.landing-hero h1 {
    max-width: 900px;
    margin-bottom: 18px;
    color: #ffffff;
    font-size: clamp(2.6rem, 8vw, 5.7rem);
    line-height: 0.96;
    letter-spacing: 0;
}

.landing-summary,
.landing-card p,
.landing-tool p,
.landing-example p,
.landing-faq p {
    color: #b8b8b8;
}

.landing-summary {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    line-height: 1.45;
}

.landing-shell .button.primary {
    background: #ffffff;
    color: #090909;
}

.landing-shell .button:not(.primary) {
    border-color: #2d2d2d;
    background: #1c1c1c;
    color: #ffffff;
}

.landing-card,
.landing-tool,
.landing-example,
.landing-faq,
.landing-links {
    border-top-color: #262626;
}

.landing-card {
    border-color: #262626;
    border-left: 0;
    border-radius: 20px;
    background: #141414;
    color: #ffffff;
    padding: 20px;
}

.landing-card:nth-child(2) {
    background:
        radial-gradient(circle at 20% 20%, rgb(212 77 240 / 0.42), transparent 36%),
        radial-gradient(circle at 80% 10%, rgb(106 76 245 / 0.5), transparent 32%),
        #1c1c1c;
}

.landing-card h2,
.landing-tool h2,
.landing-example h2,
.landing-faq h2,
.landing-links h2,
.landing-faq h3 {
    color: #ffffff;
}

.landing-tool {
    border-radius: 20px;
    background: #101010;
    padding: clamp(20px, 3vw, 30px);
}

.landing-tool-field label,
.landing-tool-options label {
    color: #ffffff;
}

.landing-tool-field textarea,
.landing-tool-field input[type="file"],
.landing-tool-options input[type="number"] {
    border-color: #2d2d2d;
    background: #141414;
    color: #ffffff;
}

.landing-tool-preview {
    border-color: #2d2d2d;
    background:
        linear-gradient(45deg, #1c1c1c 25%, transparent 25%),
        linear-gradient(-45deg, #1c1c1c 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #1c1c1c 75%),
        linear-gradient(-45deg, transparent 75%, #1c1c1c 75%);
    background-color: #090909;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    background-size: 16px 16px;
}

.landing-example pre {
    border: 1px solid #262626;
    background: #141414;
    color: #f4f4f5;
}

.landing-faq article,
.landing-link-list a {
    border-color: #262626;
    background: #141414;
    color: #ffffff;
}

.landing-link-list a:hover {
    border-color: #0099ff;
    background: #1c1c1c;
}

.faq-grid.compact {
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 16px 0 0;
}

@media (max-width: 760px) {
    .site-header {
        padding-top: 8px;
    }

    .topbar {
        position: relative;
        flex-direction: row;
        align-items: center;
        min-height: 60px;
        padding: 8px;
    }

    .nav-toggle {
        display: inline-grid;
    }

    .nav-links {
        position: absolute;
        top: calc(100% + 8px);
        right: 0;
        left: 0;
        z-index: 40;
        display: grid;
        gap: 4px;
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-6px);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--surface);
        padding: 8px;
        box-shadow: 0 18px 44px -28px rgb(18 20 24 / 0.56);
        transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease;
    }

    .topbar.is-open .nav-links {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav-links a {
        display: flex;
        align-items: center;
        min-height: 44px;
        padding: 0.68rem 0.78rem;
    }
}

@media (max-width: 980px) {
    .tool-intro,
    .workspace,
    .content-grid,
    .faq-grid,
    .examples-content,
    .workflow-grid,
    .example-snippet-grid,
    .landing-grid,
    .landing-tool,
    .landing-example,
    .icon-library-controls {
        grid-template-columns: 1fr;
    }

    .landing-tool-preview {
        grid-column: auto;
        grid-row: auto;
    }

    .landing-tool-options {
        grid-template-columns: 1fr;
    }

    .intro-facts {
        justify-content: flex-start;
        max-width: 560px;
    }

    .icon-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .preview-stage,
    #svg-editor {
        min-height: 390px;
        height: 390px;
    }
}

@media (max-width: 640px) {
    .site-header,
    .site-footer,
    .tool-shell,
    .landing-shell,
    .content-grid,
    .faq-grid,
    .examples-content,
    .workflow-content,
    .icon-library,
    .page-shell {
        width: min(100% - 24px, 1240px);
    }

    .site-footer,
    .icon-library-header,
    .pane-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .icon-library-license {
        max-width: none;
        text-align: left;
    }

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

    .intro-facts {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2.2rem;
    }

    .eyebrow {
        font-size: 0.76rem;
        overflow-wrap: anywhere;
    }

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

    .toolbar .button {
        width: 100%;
        min-width: 0;
    }

    .editor-stats {
        justify-content: flex-start;
        text-align: left;
    }

    #svg-editor {
        padding-left: 16px;
        background: var(--surface-ink);
    }
}

.benchmark-shell {
    width: min(1240px, calc(100% - 40px));
    margin: 0 auto;
    padding: 20px 0 56px;
}

.benchmark-intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
    gap: 22px;
    align-items: end;
    padding: 8px 0 24px;
}

.benchmark-intro > *,
.section-heading,
.challenge-card,
.rubric-item,
.result-card {
    min-width: 0;
}

.benchmark-shell .summary,
.benchmark-shell p,
.benchmark-shell h1,
.benchmark-shell h2,
.benchmark-shell h3,
.benchmark-shell h4 {
    max-width: 100%;
    overflow-wrap: anywhere;
}

.benchmark-facts,
.result-facts {
    display: grid;
    gap: 8px;
    margin: 0;
}

.benchmark-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.benchmark-facts div,
.result-facts div {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgb(255 254 250 / 0.84);
    padding: 10px;
}

.benchmark-facts dt,
.result-facts dt,
.challenge-meta {
    color: var(--subtle);
    font-size: 0.72rem;
    font-weight: 850;
    letter-spacing: 0;
    text-transform: uppercase;
}

.benchmark-facts dd,
.result-facts dd {
    margin: 2px 0 0;
    overflow-wrap: anywhere;
    font-weight: 800;
}

.benchmark-section {
    padding: 30px 0;
    border-top: 1px solid var(--line);
}

.section-heading {
    max-width: 780px;
    margin-bottom: 16px;
}

.section-heading p,
.challenge-card p,
.rubric-item p,
.result-card p {
    color: var(--muted);
    overflow-wrap: anywhere;
}

.benchmark-table-wrap {
    max-width: 100%;
    overflow-x: auto;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
}

.benchmark-table {
    width: 100%;
    min-width: 780px;
    border-collapse: collapse;
}

.benchmark-table caption {
    padding: 12px 14px;
    text-align: left;
    color: var(--muted);
    font-weight: 800;
}

.benchmark-table th,
.benchmark-table td {
    border-top: 1px solid var(--line);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
}

.benchmark-table thead th {
    background: var(--surface-quiet);
    color: var(--surface-ink);
    font-size: 0.78rem;
    letter-spacing: 0;
    text-transform: uppercase;
}

.benchmark-table code,
.result-card code {
    display: block;
    max-width: 32ch;
    margin-top: 4px;
    overflow-wrap: anywhere;
    color: var(--subtle);
    font-family: var(--mono);
    font-size: 0.78rem;
}

.challenge-grid,
.rubric-grid,
.result-grid {
    display: grid;
    gap: 12px;
}

.challenge-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rubric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.challenge-card,
.rubric-item,
.result-card {
    min-width: 0;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 14px;
}

.challenge-card details,
.result-card details {
    margin-top: 12px;
}

.challenge-card summary,
.result-card summary {
    cursor: pointer;
    font-weight: 800;
}

.challenge-card pre,
.result-card pre {
    max-height: 320px;
    margin: 12px 0 0;
    overflow: auto;
    border-radius: var(--radius);
    background: var(--surface-ink);
    color: #e8eef8;
    padding: 12px;
    font-family: var(--mono);
    font-size: 0.78rem;
    line-height: 1.55;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
}

.rubric-item {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    column-gap: 12px;
}

.rubric-item p {
    grid-column: 2;
    margin-bottom: 0;
}

.rubric-points {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--blue);
    color: white;
    font-weight: 900;
}

.result-group + .result-group {
    margin-top: 24px;
}

.result-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.result-evidence-layout {
    display: grid;
    grid-template-columns: minmax(240px, 0.34fr) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.result-metadata,
.result-preview-column {
    display: grid;
    gap: 12px;
    min-width: 0;
}

.result-card h4 {
    margin: 0;
    font-size: 1rem;
    line-height: 1.3;
}

.status-pill {
    flex: 0 0 auto;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff8e8;
    color: var(--amber);
    padding: 0.28rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 850;
}

.benchmark-preview-panel,
.empty-preview {
    width: 100%;
    margin: 12px 0;
}

.benchmark-preview-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid var(--line);
    border-bottom: 0;
    border-radius: var(--radius) var(--radius) 0 0;
    background: var(--surface-quiet);
    padding: 10px 12px;
}

.benchmark-preview-label {
    display: block;
    color: var(--text);
    font-weight: 850;
}

.benchmark-zoom-status {
    color: var(--subtle);
    font-family: var(--mono);
    font-size: 0.78rem;
}

.benchmark-preview-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.benchmark-zoom-button,
.benchmark-reset-button {
    min-width: 40px;
    min-height: 40px;
}

.benchmark-reset-button {
    padding: 0 0.72rem;
}

.benchmark-preview-viewport {
    height: clamp(340px, 42vw, 540px);
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: 0 0 var(--radius) var(--radius);
    background-color: var(--surface-quiet);
    background-image:
        linear-gradient(45deg, var(--line) 25%, transparent 25%),
        linear-gradient(-45deg, var(--line) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--line) 75%),
        linear-gradient(-45deg, transparent 75%, var(--line) 75%);
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    background-size: 16px 16px;
}

.benchmark-preview-canvas {
    width: 100%;
    height: 100%;
    min-width: 100%;
    min-height: 100%;
}

.benchmark-preview {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: transparent;
    transform-origin: top left;
}

.empty-preview {
    min-height: 340px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-quiet);
    display: grid;
    place-items: center;
    color: var(--subtle);
    font-weight: 800;
    text-align: center;
    padding: 18px;
}

.source-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.source-list a {
    display: inline-flex;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 0.55rem 0.7rem;
    color: var(--text);
    font-weight: 800;
    text-decoration: none;
}

@media (max-width: 980px) {
    .tool-intro,
    .workspace,
    .content-grid,
    .faq-grid,
    .examples-content,
    .workflow-grid,
    .example-snippet-grid,
    .icon-library-controls,
    .benchmark-intro,
    .challenge-grid,
    .rubric-grid,
    .result-grid {
        grid-template-columns: 1fr;
    }

    .intro-facts {
        max-width: 560px;
    }

    .icon-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

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

    .preview-stage,
    #svg-editor {
        min-height: 390px;
        height: 390px;
    }
}

@media (max-width: 640px) {
    .site-header,
    .site-footer,
    .tool-shell,
    .content-grid,
    .faq-grid,
    .examples-content,
    .workflow-content,
    .icon-library,
    .benchmark-shell,
    .page-shell {
        width: min(100% - 24px, 1360px);
    }

    .benchmark-shell {
        max-width: calc(100vw - 24px);
    }

    .benchmark-intro,
    .benchmark-section,
    .section-heading,
    .benchmark-shell .summary,
    .benchmark-shell .section-heading p {
        width: 100%;
        max-width: calc(100vw - 24px);
    }

    .benchmark-shell .summary,
    .benchmark-shell .section-heading p {
        max-width: 30ch;
    }

    .site-footer,
    .icon-library-header,
    .pane-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar {
        align-items: center;
    }

    .icon-library-license {
        max-width: none;
        text-align: left;
    }

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

    .intro-facts {
        max-width: none;
    }

    .benchmark-facts {
        grid-template-columns: 1fr;
    }

    .benchmark-preview-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .result-preview-column {
        order: -1;
    }

    .benchmark-preview-viewport {
        height: 320px;
    }

    h1 {
        font-size: 2.35rem;
        line-height: 1.04;
    }

    .eyebrow {
        font-size: 0.76rem;
        overflow-wrap: anywhere;
    }

    .summary {
        font-size: 1rem;
        line-height: 1.55;
    }

    .tool-shell {
        padding-top: 6px;
        padding-bottom: 30px;
    }

    .tool-intro {
        gap: 14px;
        margin-bottom: 16px;
    }

    .intro-facts div {
        flex-basis: 104px;
        padding: 8px 9px;
    }

    .toolbar {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .toolbar .button {
        width: 100%;
        min-width: 0;
    }

    .editor-stats {
        justify-content: flex-start;
        text-align: left;
    }

    #svg-editor {
        min-height: 340px;
        height: 340px;
        padding-left: 16px;
        background: var(--surface-ink);
    }

    .preview-stage {
        min-height: 340px;
        height: 340px;
    }

    .content-band {
        padding: 40px 0;
    }

    .workflow-grid {
        gap: 14px;
    }
}

@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;
    }
}