.tool-page {
min-height: 100vh;
background:
radial-gradient(circle at 86% 3%, rgba(85, 98, 255, 0.08), transparent 26%),
radial-gradient(circle at 11% 32%, rgba(56, 212, 244, 0.06), transparent 24%),
var(--page);
}

.main-nav a[aria-current="page"] {
color: #ffffff;
}

.main-nav a[aria-current="page"]::after {
transform: scaleX(1);
}

.tool-hero {
position: relative;
overflow: hidden;
padding: clamp(54px, 8vw, 92px) 0 clamp(58px, 8vw, 96px);
background:
radial-gradient(circle at 78% 28%, rgba(56, 212, 244, 0.15), transparent 26%),
radial-gradient(circle at 16% 0%, rgba(138, 99, 255, 0.17), transparent 33%),
#080d24;
color: var(--hero-text);
}

.tool-hero::before {
position: absolute;
inset: 0;
background-image:
linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
background-size: 44px 44px;
content: "";
mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 90%);
pointer-events: none;
}

.tool-hero .shell {
position: relative;
z-index: 1;
}

.breadcrumbs {
display: flex;
flex-wrap: wrap;
align-items: center;
margin: 0 0 28px;
color: #929dbc;
font-size: 0.78rem;
font-weight: 700;
gap: 8px;
}

.breadcrumbs a {
color: #b7c1e2;
text-decoration: none;
}

.breadcrumbs a:hover {
color: #ffffff;
}

.breadcrumbs span[aria-hidden="true"] {
color: #687495;
}

.tool-hero-grid {
display: grid;
grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.72fr);
align-items: center;
gap: clamp(42px, 7vw, 94px);
}

.tool-hero-copy {
max-width: 760px;
}

.tool-hero .eyebrow {
color: #68e0ff;
}

.tool-hero h1 {
max-width: 800px;
margin: 0;
font-size: clamp(2.55rem, 5.7vw, 5.15rem);
font-weight: 900;
letter-spacing: -0.065em;
line-height: 0.98;
}

.tool-hero-copy > p:not(.eyebrow) {
max-width: 720px;
margin: 22px 0 0;
color: #bdc5e2;
font-size: clamp(1rem, 1.6vw, 1.13rem);
line-height: 1.75;
}

.tool-hero-list {
display: flex;
flex-wrap: wrap;
margin: 28px 0 0;
padding: 0;
list-style: none;
gap: 10px;
}

.tool-hero-list li {
padding: 8px 12px;
border: 1px solid rgba(255, 255, 255, 0.1);
border-radius: 999px;
background: rgba(255, 255, 255, 0.055);
color: #d9def2;
font-size: 0.77rem;
font-weight: 720;
}

.tool-live-card {
position: relative;
overflow: hidden;
padding: clamp(27px, 4vw, 40px);
border: 1px solid rgba(255, 255, 255, 0.14);
border-radius: 32px;
background: linear-gradient(145deg, rgba(255, 255, 255, 0.095), rgba(255, 255, 255, 0.035));
box-shadow: 0 28px 70px rgba(0, 0, 0, 0.24);
backdrop-filter: blur(16px);
}

.tool-live-card::after {
position: absolute;
right: -50px;
bottom: -65px;
width: 180px;
height: 180px;
border-radius: 50%;
background: rgba(56, 212, 244, 0.08);
content: "";
pointer-events: none;
}

.tool-live-label {
display: block;
margin-bottom: 8px;
color: #8d99bd;
font-size: 0.7rem;
font-weight: 800;
letter-spacing: 0.11em;
text-transform: uppercase;
}

.tool-live-card > strong {
display: block;
color: #ffffff;
font-size: clamp(1.75rem, 4vw, 2.8rem);
font-weight: 900;
letter-spacing: -0.055em;
line-height: 1.05;
}

.tool-live-card > p {
position: relative;
z-index: 1;
margin: 12px 0 0;
color: #aeb7d7;
font-size: 0.86rem;
}

.tool-live-values {
display: grid;
margin: 24px 0 0;
padding-top: 20px;
border-top: 1px solid rgba(255, 255, 255, 0.1);
gap: 11px;
}

.tool-live-values div {
display: grid;
grid-template-columns: 1fr auto;
align-items: baseline;
gap: 18px;
}

.tool-live-values dt {
color: #8994b8;
font-size: 0.72rem;
}

.tool-live-values dd {
margin: 0;
color: #e8ebfa;
font-size: 0.82rem;
font-weight: 780;
text-align: right;
}

.tool-main-section {
padding-block: clamp(72px, 9vw, 118px);
}

.tool-noscript {
margin: 0 0 30px;
padding: 14px 17px;
border: 1px solid rgba(148, 100, 22, 0.35);
border-radius: 12px;
background: rgba(148, 100, 22, 0.08);
color: var(--warning);
font-size: 0.82rem;
font-weight: 700;
}

.tool-heading {
max-width: 810px;
margin-bottom: 38px;
}

.tool-heading h2,
.editorial-copy h2,
.faq-heading h2,
.related-heading h2 {
margin: 0;
font-size: clamp(2rem, 4vw, 3.25rem);
font-weight: 880;
letter-spacing: -0.055em;
line-height: 1.05;
}

.tool-heading > p:not(.eyebrow),
.faq-heading > p:not(.eyebrow),
.related-heading > p:not(.eyebrow) {
margin: 16px 0 0;
color: var(--muted);
font-size: 1rem;
}

.calculator-shell {
display: grid;
grid-template-columns: minmax(0, 0.94fr) minmax(380px, 1.06fr);
overflow: hidden;
border: 1px solid var(--line);
border-radius: var(--radius-xl);
background: var(--surface);
box-shadow: var(--shadow-md);
}

.calculator-controls,
.calculator-output {
min-width: 0;
padding: clamp(27px, 4.5vw, 52px);
}

.calculator-output {
border-left: 1px solid var(--line);
background:
radial-gradient(circle at 90% 12%, rgba(85, 98, 255, 0.1), transparent 29%),
var(--surface-soft);
}

.calculator-controls h3,
.calculator-output h3 {
margin: 0 0 12px;
font-size: clamp(1.25rem, 2.2vw, 1.65rem);
letter-spacing: -0.03em;
}

.calculator-controls > p,
.calculator-output > p {
color: var(--muted);
}

.reference-choice,
.input-grid {
display: grid;
margin: 28px 0 0;
gap: 12px;
}

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

.reference-choice label {
position: relative;
display: grid;
min-height: 88px;
padding: 15px;
border: 1px solid var(--line);
border-radius: 15px;
background: var(--surface-soft);
cursor: pointer;
transition: border-color 150ms ease, transform 150ms ease, background 150ms ease;
}

.reference-choice label:hover {
border-color: var(--line-strong);
transform: translateY(-1px);
}

.reference-choice label:has(input:checked) {
border-color: var(--accent);
background: var(--surface-strong);
box-shadow: inset 0 0 0 1px var(--accent);
}

.reference-choice input {
position: absolute;
top: 14px;
right: 14px;
}

.reference-choice strong {
align-self: end;
font-size: 0.84rem;
}

.reference-choice span {
color: var(--muted);
font-size: 0.7rem;
}

.calibration-stage-tool {
display: grid;
place-items: center;
min-height: 390px;
margin-top: 28px;
padding: 24px;
overflow: hidden;
border: 1px solid var(--line);
border-radius: 24px;
background:
linear-gradient(rgba(85, 98, 255, 0.035) 1px, transparent 1px),
linear-gradient(90deg, rgba(85, 98, 255, 0.035) 1px, transparent 1px),
var(--surface-soft);
background-size: 24px 24px;
}

.reference-object-tool {
position: relative;
display: grid;
place-items: end start;
flex: 0 0 auto;
max-width: 100%;
border: 2px solid rgba(255, 255, 255, 0.74);
background:
radial-gradient(circle at 76% 20%, rgba(56, 212, 244, 0.48), transparent 28%),
linear-gradient(135deg, #5260ff, #252e75 58%, #151b4c);
box-shadow: 0 20px 45px rgba(23, 34, 94, 0.25);
color: #ffffff;
transition: width 80ms linear, height 80ms linear, border-radius 100ms ease;
}

.reference-object-tool.is-landscape-card,
.reference-object-tool.is-portrait-card {
padding: 12px;
border-radius: 12px;
}

.reference-object-tool.is-coin {
place-items: center;
padding: 0;
border: 5px double rgba(255, 255, 255, 0.78);
border-radius: 50%;
background:
radial-gradient(circle, #e7e8ec 0 39%, #f0c64d 40% 66%, #c99d27 67% 100%);
color: #3e351c;
}

.reference-object-tool strong {
font-size: clamp(0.58rem, 1.4vw, 0.74rem);
line-height: 1.15;
}

.reference-object-tool.is-coin strong {
font-size: clamp(0.55rem, 1.8vw, 0.72rem);
text-align: center;
}

.calibration-adjustment {
display: grid;
margin-top: 26px;
gap: 14px;
}

.range-line,
.number-line,
.form-field {
display: grid;
gap: 8px;
}

.range-line > div,
.number-line > div,
.input-pair {
display: flex;
align-items: center;
justify-content: space-between;
gap: 14px;
}

.range-line label,
.number-line label,
.form-field label,
.form-field > span:first-child {
color: var(--text-soft);
font-size: 0.8rem;
font-weight: 760;
}

.range-line output {
color: var(--accent-strong);
font-size: 0.82rem;
font-weight: 830;
}

.number-line input,
.form-field input,
.form-field select {
width: 100%;
min-height: 47px;
padding: 9px 12px;
border: 1px solid var(--line-strong);
border-radius: 12px;
background: var(--surface);
color: var(--text);
outline: none;
}

.number-line input:focus,
.form-field input:focus,
.form-field select:focus {
border-color: var(--accent);
box-shadow: 0 0 0 3px rgba(85, 98, 255, 0.12);
}

.number-line > div {
justify-content: flex-start;
}

.number-line input {
max-width: 150px;
}

.number-line span {
color: var(--muted);
font-size: 0.8rem;
}

.tool-inline-action {
display: flex;
flex-wrap: wrap;
align-items: center;
margin-top: 20px;
gap: 12px 18px;
}

.tool-status {
min-height: 1.6em;
margin: 16px 0 0;
color: var(--muted);
font-size: 0.78rem;
}

.tool-status.is-success {
color: var(--success);
}

.tool-status.is-error {
color: var(--danger);
}

.result-grid {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
margin: 28px 0 0;
gap: 12px;
}

.result-grid div {
min-width: 0;
padding: 18px;
border: 1px solid var(--line);
border-radius: 17px;
background: var(--surface);
}

.result-grid dt {
color: var(--muted);
font-size: 0.7rem;
font-weight: 750;
}

.result-grid dd {
margin: 7px 0 0;
color: var(--text);
font-size: clamp(1.05rem, 2.5vw, 1.42rem);
font-weight: 860;
letter-spacing: -0.035em;
overflow-wrap: anywhere;
}

.result-grid .result-featured {
grid-column: span 2;
border-color: rgba(85, 98, 255, 0.28);
background: linear-gradient(135deg, rgba(85, 98, 255, 0.11), rgba(56, 212, 244, 0.07));
}

.result-grid .result-featured dd {
color: var(--accent-strong);
font-size: clamp(1.7rem, 4vw, 2.55rem);
}

.calculator-note {
margin: 22px 0 0;
padding: 14px 16px;
border-left: 3px solid var(--cyan-dark);
border-radius: 0 12px 12px 0;
background: rgba(56, 212, 244, 0.06);
color: var(--muted-strong);
font-size: 0.78rem;
}

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

.input-grid .field-wide {
grid-column: span 2;
}

.unit-field {
display: grid;
grid-template-columns: minmax(0, 1fr) 125px;
gap: 10px;
}

.detected-box {
margin-top: 26px;
padding: 18px;
border: 1px dashed var(--line-strong);
border-radius: 18px;
background: var(--surface-soft);
}

.detected-box span {
display: block;
color: var(--muted);
font-size: 0.72rem;
}

.detected-box strong {
display: block;
margin-top: 4px;
font-size: 1.1rem;
}

.detected-box button {
margin-top: 12px;
}

.formula-box {
margin-top: 28px;
padding: 18px 20px;
border: 1px solid var(--line);
border-radius: 18px;
background: var(--surface);
color: var(--muted-strong);
font-size: 0.82rem;
}

.formula-box code {
display: block;
margin-top: 8px;
overflow-wrap: anywhere;
color: var(--text);
font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
font-size: 0.85rem;
font-weight: 700;
}

.wallpaper-checker {
margin-top: 32px;
padding-top: 30px;
border-top: 1px solid var(--line);
}

.wallpaper-checker h3 {
margin-bottom: 8px;
}

.wallpaper-checker > p {
margin: 0;
color: var(--muted);
font-size: 0.86rem;
}

.file-field {
display: grid;
margin-top: 20px;
gap: 9px;
}

.file-field label {
display: inline-flex;
align-items: center;
justify-content: center;
min-height: 48px;
padding: 10px 17px;
border: 1px dashed var(--line-strong);
border-radius: 14px;
background: var(--surface-soft);
color: var(--text-soft);
font-size: 0.82rem;
font-weight: 780;
text-align: center;
cursor: pointer;
}

.file-field label:hover {
border-color: var(--accent);
background: var(--surface-strong);
}

.file-field input {
position: absolute;
width: 1px;
height: 1px;
overflow: hidden;
clip: rect(0 0 0 0);
}

.file-field input:focus-visible + label {
outline: 3px solid var(--cyan);
outline-offset: 4px;
}

.wallpaper-preview-frame {
position: relative;
display: grid;
place-items: center;
width: 100%;
max-height: 420px;
margin-top: 20px;
overflow: hidden;
border: 1px solid var(--line);
border-radius: 18px;
background:
linear-gradient(45deg, var(--surface-strong) 25%, transparent 25%, transparent 75%, var(--surface-strong) 75%),
linear-gradient(45deg, var(--surface-strong) 25%, transparent 25%, transparent 75%, var(--surface-strong) 75%),
var(--surface);
background-position: 0 0, 12px 12px;
background-size: 24px 24px;
}

.wallpaper-preview-frame img {
width: 100%;
height: 100%;
object-fit: cover;
}

.wallpaper-preview-empty {
max-width: 300px;
padding: 36px 20px;
color: var(--muted);
font-size: 0.8rem;
text-align: center;
}

.wallpaper-preview-empty[hidden] {
display: none;
}

.wallpaper-source-results {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
margin-top: 18px;
gap: 9px;
}

.wallpaper-source-results div {
padding: 12px 13px;
border: 1px solid var(--line);
border-radius: 13px;
background: var(--surface);
}

.wallpaper-source-results dt {
color: var(--muted);
font-size: 0.66rem;
}

.wallpaper-source-results dd {
margin: 4px 0 0;
color: var(--text-soft);
font-size: 0.78rem;
font-weight: 780;
}

.editorial-section {
padding-block: clamp(72px, 9vw, 116px);
border-top: 1px solid var(--line);
background: var(--surface-soft);
}

.editorial-grid {
display: grid;
grid-template-columns: minmax(0, 1.15fr) minmax(290px, 0.65fr);
align-items: start;
gap: clamp(44px, 8vw, 100px);
}

.ppi-tool-section {
padding-bottom: 32px;
}

.ppi-editorial-section {
padding-top: 32px;
}

.ppi-tool-visual {
max-width: 1060px;
margin: clamp(28px, 4vw, 40px) auto 0;
overflow: hidden;
border: 1px solid var(--line);
border-radius: 28px;
background: var(--surface);
box-shadow: var(--shadow-sm);
}

.ppi-tool-visual img {
width: 100%;
height: auto;
aspect-ratio: 1400 / 847;
object-fit: cover;
}

.editorial-copy {
max-width: 790px;
}

.editorial-copy h2 {
margin-bottom: 24px;
}

.editorial-copy h3 {
margin: 36px 0 12px;
font-size: 1.22rem;
letter-spacing: -0.025em;
}

.editorial-copy p {
color: var(--muted-strong);
}

.editorial-copy ul,
.editorial-copy ol {
padding-left: 1.25rem;
color: var(--muted-strong);
}

.editorial-copy li + li {
margin-top: 9px;
}

.side-fact-card {
position: sticky;
top: calc(var(--header-height) + 24px);
padding: 26px;
border: 1px solid var(--line);
border-radius: 24px;
background: var(--surface);
box-shadow: var(--shadow-sm);
}

.side-fact-card h3 {
margin: 0 0 12px;
font-size: 1.05rem;
}

.side-fact-card p {
margin: 0;
color: var(--muted);
font-size: 0.82rem;
}

.side-fact-card p + p,
.side-fact-card a {
margin-top: 12px;
}

.side-fact-card a {
display: inline-block;
font-size: 0.8rem;
font-weight: 780;
}

.steps-grid {
display: grid;
grid-template-columns: repeat(3, minmax(0, 1fr));
margin-top: 34px;
gap: 14px;
}

.step-card {
padding: 22px;
border: 1px solid var(--line);
border-radius: 20px;
background: var(--surface);
}

.step-card span {
display: inline-grid;
place-items: center;
width: 34px;
height: 34px;
border-radius: 10px;
background: var(--surface-strong);
color: var(--accent-strong);
font-size: 0.8rem;
font-weight: 900;
}

.step-card strong {
display: block;
margin-top: 14px;
font-size: 0.95rem;
}

.step-card p {
margin: 8px 0 0;
color: var(--muted);
font-size: 0.79rem;
}

.tool-faq-section,
.related-tools {
padding-block: clamp(72px, 9vw, 110px);
}

.faq-heading,
.related-heading {
max-width: 760px;
margin-bottom: 34px;
}

.tool-faq-list {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
gap: 12px;
}

.tool-faq-list details {
align-self: start;
border: 1px solid var(--line);
border-radius: 18px;
background: var(--surface);
box-shadow: var(--shadow-sm);
}

.tool-faq-list summary {
position: relative;
padding: 19px 48px 19px 20px;
color: var(--text-soft);
font-size: 0.88rem;
font-weight: 800;
list-style: none;
}

.tool-faq-list summary::-webkit-details-marker {
display: none;
}

.tool-faq-list summary::after {
position: absolute;
top: 50%;
right: 19px;
width: 18px;
height: 18px;
color: var(--accent-strong);
content: "+";
font-size: 1.2rem;
line-height: 18px;
text-align: center;
transform: translateY(-50%);
}

.tool-faq-list details[open] summary::after {
content: "−";
}

.tool-faq-list details p {
margin: 0;
padding: 0 20px 20px;
color: var(--muted);
font-size: 0.82rem;
}

.related-tools {
border-top: 1px solid var(--line);
background: var(--page-deep);
}

.related-grid {
display: grid;
grid-template-columns: repeat(3, minmax(0, 1fr));
gap: 15px;
}

.related-card {
position: relative;
display: block;
min-height: 190px;
padding: 24px;
overflow: hidden;
border: 1px solid var(--line);
border-radius: 22px;
background: var(--surface);
color: var(--text);
text-decoration: none;
box-shadow: var(--shadow-sm);
transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.related-card:hover {
border-color: rgba(85, 98, 255, 0.4);
color: var(--text);
transform: translateY(-3px);
box-shadow: var(--shadow-md);
}

.related-card span {
display: block;
color: var(--accent-strong);
font-size: 0.7rem;
font-weight: 850;
letter-spacing: 0.09em;
text-transform: uppercase;
}

.related-card strong {
display: block;
max-width: 260px;
margin-top: 12px;
font-size: 1.2rem;
letter-spacing: -0.035em;
}

.related-card p {
max-width: 320px;
margin: 10px 0 0;
color: var(--muted);
font-size: 0.78rem;
}

.related-card::after {
position: absolute;
right: 20px;
bottom: 16px;
color: var(--accent-strong);
content: "→";
font-size: 1.45rem;
font-weight: 900;
}

.privacy-local-note {
display: inline-flex;
align-items: center;
margin-top: 16px;
padding: 8px 11px;
border-radius: 999px;
background: rgba(19, 132, 93, 0.08);
color: var(--success);
font-size: 0.72rem;
font-weight: 780;
}

@media (max-width: 1120px) {
.main-nav {
gap: 22px;
}

.main-nav a {
font-size: 0.82rem;
}
}

@media (max-width: 960px) {
.tool-hero-grid,
.calculator-shell,
.editorial-grid {
grid-template-columns: 1fr;
}

.tool-live-card {
max-width: 660px;
}

.calculator-output {
border-top: 1px solid var(--line);
border-left: 0;
}

.side-fact-card {
position: static;
max-width: 760px;
}
}

@media (max-width: 760px) {
.ppi-tool-section {
padding-bottom: 24px;
}

.ppi-editorial-section {
padding-top: 24px;
}

.ppi-tool-visual {
margin-top: 24px;
border-radius: 22px;
}

.tool-hero {
padding-block: 46px 62px;
}

.breadcrumbs {
margin-bottom: 22px;
}

.tool-hero h1 {
font-size: clamp(2.35rem, 12vw, 4rem);
}

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

.tool-hero-list li {
text-align: center;
}

.calculator-shell {
border-radius: 28px;
}

.reference-choice,
.steps-grid,
.related-grid,
.tool-faq-list {
grid-template-columns: 1fr;
}

.reference-choice label {
min-height: 72px;
}

.calibration-stage-tool {
min-height: 330px;
padding: 16px;
}

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

.input-grid .field-wide {
grid-column: auto;
}

.result-grid,
.wallpaper-source-results {
grid-template-columns: 1fr;
}

.result-grid .result-featured {
grid-column: auto;
}
}

@media (max-width: 520px) {
.tool-hero-list {
grid-template-columns: 1fr;
}

.tool-live-values div {
grid-template-columns: 1fr;
gap: 2px;
}

.tool-live-values dd {
text-align: left;
}

.calculator-controls,
.calculator-output {
padding: 24px 18px;
}

.unit-field {
grid-template-columns: 1fr;
}

.number-line > div {
align-items: stretch;
}

.number-line input {
max-width: none;
}

.calibration-stage-tool {
min-height: 285px;
}
}

@media (prefers-reduced-motion: reduce) {
.reference-object-tool,
.related-card,
.reference-choice label {
transition: none;
}
}

@media print {
.tool-hero {
background: #ffffff !important;
color: #000000 !important;
}

.tool-live-card,
.calculator-shell,
.related-card,
.tool-faq-list details {
box-shadow: none !important;
}
}

/* Phase 2: resolution comparison */
.resolution-calculator .calculator-output {
background:
radial-gradient(circle at 88% 12%, rgba(104, 224, 255, 0.12), transparent 30%),
radial-gradient(circle at 18% 88%, rgba(122, 79, 255, 0.08), transparent 34%),
var(--surface-soft);
}

.resolution-table-wrap,
.resolution-scale {
margin-top: clamp(36px, 6vw, 68px);
padding: clamp(24px, 4vw, 40px);
border: 1px solid var(--line);
border-radius: var(--radius-xl);
background: var(--surface);
box-shadow: var(--shadow-sm);
}

.resolution-table-heading {
display: grid;
grid-template-columns: minmax(0, 1.25fr) minmax(270px, 0.75fr);
align-items: end;
gap: 32px;
margin-bottom: 26px;
}

.resolution-table-heading h3 {
margin: 0;
font-size: clamp(1.55rem, 3vw, 2.2rem);
font-weight: 860;
letter-spacing: -0.045em;
line-height: 1.08;
}

.resolution-table-heading > p,
.compact-heading > p {
margin: 0;
color: var(--muted);
font-size: 0.84rem;
}

.resolution-table-scroll {
overflow-x: auto;
border: 1px solid var(--line);
border-radius: 18px;
outline: none;
scrollbar-width: thin;
}

.resolution-table-scroll:focus-visible {
box-shadow: 0 0 0 3px rgba(85, 98, 255, 0.18);
}

.resolution-table {
width: 100%;
min-width: 820px;
border-collapse: collapse;
background: var(--surface);
}

.resolution-table th,
.resolution-table td {
padding: 16px 18px;
border-bottom: 1px solid var(--line);
color: var(--text);
font-size: 0.8rem;
text-align: left;
vertical-align: middle;
}

.resolution-table thead th {
background: var(--surface-soft);
color: var(--muted);
font-size: 0.68rem;
font-weight: 850;
letter-spacing: 0.07em;
text-transform: uppercase;
}

.resolution-table tbody tr:last-child th,
.resolution-table tbody tr:last-child td {
border-bottom: 0;
}

.resolution-table tbody tr:hover {
background: rgba(85, 98, 255, 0.035);
}

.resolution-table tbody th strong {
display: block;
font-size: 0.88rem;
font-weight: 830;
}

.resolution-table tbody th small {
display: block;
margin-top: 3px;
color: var(--muted);
font-size: 0.68rem;
font-weight: 540;
}

.resolution-current-difference {
min-width: 140px;
color: var(--accent-strong) !important;
font-weight: 800;
}

.compact-heading {
margin-bottom: 30px;
}

.resolution-scale-list {
display: grid;
gap: 16px;
}

.resolution-scale-row {
display: grid;
grid-template-columns: 135px minmax(0, 1fr) 74px;
align-items: center;
gap: 16px;
}

.resolution-scale-label strong,
.resolution-scale-label small {
display: block;
}

.resolution-scale-label strong {
color: var(--text);
font-size: 0.78rem;
font-weight: 820;
}

.resolution-scale-label small {
margin-top: 2px;
color: var(--muted);
font-size: 0.66rem;
}

.resolution-scale-track {
display: block;
height: 15px;
overflow: hidden;
border-radius: 999px;
background: rgba(85, 98, 255, 0.08);
box-shadow: inset 0 0 0 1px rgba(85, 98, 255, 0.08);
}

.resolution-scale-track > span {
display: block;
min-width: 5px;
height: 100%;
border-radius: inherit;
background: linear-gradient(90deg, var(--accent), var(--cyan));
}

.resolution-scale-value {
color: var(--text);
font-size: 0.76rem;
font-weight: 820;
text-align: right;
}

/* Phase 2: CSS-pixel / DPR explainer */
.pixel-layer-stack {
display: grid;
grid-template-columns: minmax(0, 1fr) 42px minmax(0, 0.8fr) 42px minmax(0, 1.05fr);
align-items: stretch;
gap: 12px;
}

.pixel-layer-card {
position: relative;
display: flex;
min-width: 0;
min-height: 210px;
padding: 28px;
overflow: hidden;
border: 1px solid var(--line);
border-radius: 26px;
background: var(--surface);
box-shadow: var(--shadow-sm);
}

.pixel-layer-card::before {
position: absolute;
top: -55px;
right: -55px;
width: 150px;
height: 150px;
border-radius: 50%;
background: rgba(85, 98, 255, 0.07);
content: "";
}

.pixel-layer-primary {
border-color: rgba(85, 98, 255, 0.25);
}

.pixel-layer-result {
border-color: rgba(49, 190, 218, 0.32);
background:
radial-gradient(circle at 90% 8%, rgba(104, 224, 255, 0.11), transparent 30%),
var(--surface);
}

.pixel-layer-number {
position: relative;
z-index: 1;
display: grid;
flex: 0 0 auto;
width: 34px;
height: 34px;
margin-right: 16px;
border-radius: 11px;
background: rgba(85, 98, 255, 0.1);
color: var(--accent-strong);
font-size: 0.72rem;
font-weight: 900;
place-items: center;
}

.pixel-layer-card > div {
position: relative;
z-index: 1;
min-width: 0;
}

.pixel-layer-card > div > span {
display: block;
color: var(--muted);
font-size: 0.68rem;
font-weight: 800;
letter-spacing: 0.05em;
text-transform: uppercase;
}

.pixel-layer-card strong {
display: block;
margin-top: 12px;
color: var(--text);
font-size: clamp(1.28rem, 2.5vw, 1.9rem);
font-weight: 880;
letter-spacing: -0.05em;
line-height: 1.05;
overflow-wrap: anywhere;
}

.pixel-layer-card p {
margin: 13px 0 0;
color: var(--muted);
font-size: 0.76rem;
}

.pixel-layer-operator {
display: grid;
color: var(--accent-strong);
font-size: 2rem;
font-weight: 400;
place-items: center;
}

.viewport-snapshot {
display: grid;
grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1.2fr);
gap: 34px;
margin-top: 22px;
padding: clamp(25px, 4vw, 38px);
border: 1px solid var(--line);
border-radius: 26px;
background: var(--surface-soft);
}

.viewport-snapshot-copy h3 {
margin: 0;
font-size: clamp(1.35rem, 2.4vw, 1.9rem);
letter-spacing: -0.04em;
}

.viewport-snapshot-copy > p:not(.eyebrow) {
margin: 14px 0 0;
color: var(--muted);
font-size: 0.82rem;
}

.viewport-live-grid {
display: grid;
grid-template-columns: repeat(2, minmax(0, 1fr));
margin: 0;
gap: 10px;
}

.viewport-live-grid div {
min-width: 0;
padding: 17px 18px;
border: 1px solid var(--line);
border-radius: 17px;
background: var(--surface);
}

.viewport-live-grid dt {
color: var(--muted);
font-size: 0.67rem;
font-weight: 750;
}

.viewport-live-grid dd {
margin: 7px 0 0;
color: var(--text);
font-size: 0.86rem;
font-weight: 830;
overflow-wrap: anywhere;
}

.dpr-calculator-heading {
margin-top: clamp(64px, 9vw, 104px);
}

.dpr-presets {
display: flex;
flex-wrap: wrap;
margin: 18px 0 0;
gap: 8px;
}

.dpr-presets button {
min-height: 44px;
padding: 9px 14px;
border: 1px solid var(--line);
border-radius: 999px;
background: var(--surface-soft);
color: var(--text);
font-size: 0.72rem;
font-weight: 800;
}

.dpr-presets button:hover {
border-color: rgba(85, 98, 255, 0.4);
background: rgba(85, 98, 255, 0.08);
}

@media (max-width: 1080px) {
.resolution-table-heading,
.viewport-snapshot {
grid-template-columns: 1fr;
}

.viewport-live-grid {
max-width: 760px;
}
}

@media (max-width: 960px) {
.pixel-layer-stack {
grid-template-columns: 1fr;
max-width: 720px;
}

.pixel-layer-card {
min-height: 0;
}

.pixel-layer-operator {
min-height: 34px;
transform: rotate(90deg);
}
}

@media (max-width: 760px) {
.resolution-table-wrap,
.resolution-scale {
padding: 20px 16px;
border-radius: 26px;
}

.resolution-scale-row {
grid-template-columns: 105px minmax(0, 1fr);
gap: 10px 12px;
}

.resolution-scale-value {
grid-column: 2;
margin-top: -6px;
text-align: left;
}

.pixel-layer-card {
padding: 22px 19px;
border-radius: 22px;
}

.viewport-snapshot {
padding: 22px 18px;
}

.viewport-live-grid {
grid-template-columns: 1fr;
}
}

@media (max-width: 520px) {
.resolution-table-heading {
gap: 15px;
}

.resolution-scale-row {
grid-template-columns: 1fr;
}

.resolution-scale-value {
grid-column: auto;
margin-top: -4px;
}

.pixel-layer-card {
display: block;
}

.pixel-layer-number {
margin: 0 0 14px;
}
}