:root {
  color-scheme: light;
  --ink: #111817;
  --muted: #607069;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --line: #d8ded8;
  --green: #00a982;
  --blue: #2f7cf6;
  --coral: #f05d42;
  --amber: #d69013;
  --shadow: 0 18px 60px rgba(16, 22, 20, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

code {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f2f5ef;
  padding: 0.12rem 0.32rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  transform: translateY(-140%);
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  padding: 0.55rem 0.8rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgba(216, 222, 216, 0.72);
  background: rgba(255, 255, 255, 0.92);
  padding: 0.8rem clamp(1rem, 3vw, 2.4rem);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 760;
  text-decoration: none;
}

.brand img {
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.65rem, 2vw, 1.35rem);
  color: var(--muted);
  font-size: 0.94rem;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
}

.hero {
  position: relative;
  overflow: clip;
  background: #ffffff;
  color: var(--ink);
}

#thermal-canvas {
  display: none;
}

.hero::after {
  display: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  align-items: center;
  gap: clamp(2.2rem, 5vw, 5rem);
  width: min(1380px, calc(100% - 3rem));
  min-height: min(760px, calc(100vh - 66px));
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
}

.hero-content {
  width: auto;
  min-height: auto;
  margin: 0;
  padding: 0;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 630px;
  margin: 0;
  font-size: clamp(3.1rem, 5.3vw, 5.9rem);
  font-weight: 790;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 540px;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: clamp(1.03rem, 1.5vw, 1.2rem);
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.72rem 1.05rem;
  font-weight: 760;
  text-decoration: none;
}

.button.primary {
  background: var(--green);
  color: #ffffff;
}

.button.primary:hover {
  background: #17bd95;
}

.button.secondary {
  border-color: var(--line);
  background: #ffffff;
  color: var(--ink);
}

.download-section .button.secondary,
.article-cta .button.secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  width: min(620px, 100%);
  margin: 2.8rem 0 0;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.trust-strip div {
  padding: 0.95rem 0.8rem 0 0;
}

.trust-strip div + div {
  border-left: 1px solid var(--line);
  padding-left: 0.8rem;
}

.trust-strip dt,
.checksum dt,
.spec-list dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: uppercase;
}

.trust-strip dt {
  color: var(--muted);
}

.trust-strip dd {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
}

.editor-shot {
  position: relative;
  margin: 0;
  border: 1px solid #d6ddda;
  border-radius: 8px;
  background: #edf1ef;
  box-shadow: 0 28px 70px rgba(19, 33, 28, 0.18);
  overflow: hidden;
}

.editor-shot img {
  width: 100%;
  height: auto;
}

.editor-shot figcaption {
  position: absolute;
  right: 1rem;
  bottom: 0.8rem;
  margin: 0;
  color: rgba(17, 24, 23, 0.62);
  font-size: 0.74rem;
  font-weight: 700;
}

.proof-band {
  border-top: 1px solid #d8eee5;
  border-bottom: 1px solid #d8eee5;
  background: #f2fbf6;
}

.proof-band-inner {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(1240px, calc(100% - 3rem));
  margin: 0 auto;
  padding: clamp(2.6rem, 5vw, 4.4rem) 0;
}

.proof-band-inner > div {
  padding: 0 2.2rem;
}

.proof-band-inner > div:first-child {
  padding-left: 0;
}

.proof-band-inner > div + div {
  border-left: 1px solid #bedbce;
}

.proof-band h2 {
  margin: 0;
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  letter-spacing: 0;
}

.proof-band p {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

.trust-strip dd,
.checksum dd,
.spec-list dd {
  margin: 0.2rem 0 0;
}

.section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3.8rem, 8vw, 6.5rem) 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2rem;
}

.section h2,
.download-panel h2,
.article-body h1,
.article-body h2 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

.section h2,
.download-panel h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.feature-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card,
.article-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
  padding: 1.25rem;
  box-shadow: 0 2px 0 rgba(16, 22, 20, 0.03);
}

.feature-icon {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  background: #eaf8f3;
  color: #08775f;
  font-weight: 820;
}

.feature-card h3,
.article-card h3,
.detail-list h3 {
  margin: 1rem 0 0.4rem;
  font-size: 1.05rem;
}

.feature-card p,
.article-card p,
.detail-list p,
.download-panel p {
  margin: 0;
  color: var(--muted);
}

.utility-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-list {
  display: grid;
  gap: 1.1rem;
}

.detail-list > div {
  display: grid;
  grid-template-columns: minmax(180px, 0.55fr) minmax(0, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 1.1rem;
}

.detail-list h3 {
  margin-top: 0;
}

.ad-slot {
  width: min(960px, calc(100% - 2rem));
  min-height: 120px;
  margin: 0 auto;
  border: 1px dashed #b8c4bc;
  border-radius: 8px;
  background: #f3f6f2;
  color: #7a867f;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.ad-slot[hidden] {
  display: none;
}

.download-section {
  width: 100%;
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 3vw, 2.4rem);
  background: #17201d;
  color: #f8fbf6;
}

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  width: min(1120px, 100%);
  margin: 0 auto;
}

.download-panel p {
  max-width: 720px;
  color: rgba(248, 251, 246, 0.76);
}

.checksum {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.7rem;
  margin: 0;
  border-top: 1px solid rgba(248, 251, 246, 0.18);
  padding-top: 1.2rem;
}

.checksum dt {
  color: rgba(248, 251, 246, 0.62);
}

.checksum dd {
  overflow-wrap: anywhere;
  color: rgba(248, 251, 246, 0.9);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
}

.article-card {
  color: inherit;
  text-decoration: none;
}

.article-card span {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 820;
  text-transform: uppercase;
}

.article-card:hover {
  border-color: #a7b5ad;
  box-shadow: var(--shadow);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem clamp(1rem, 3vw, 2.4rem);
}

.footer-ad {
  margin-bottom: 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1120px, 100%);
  margin: 0 auto;
  color: var(--muted);
}

.footer-inner p {
  margin: 0;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-inner a {
  color: inherit;
}

.article-main {
  width: min(850px, calc(100% - 2rem));
  max-width: calc(100vw - 2rem);
  margin: 0 auto;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.hub-main {
  width: min(1120px, calc(100% - 2rem));
}

.article-body {
  max-width: 100%;
  font-size: 1.04rem;
}

.article-body h1 {
  font-size: clamp(2.4rem, 7vw, 4.6rem);
}

.article-body .lead {
  margin: 1.2rem 0 2.2rem;
  color: var(--muted);
  font-size: 1.18rem;
}

.article-body h2 {
  margin-top: 2.4rem;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.article-body p,
.article-body li {
  color: #2d3834;
  overflow-wrap: anywhere;
}

.article-body li + li {
  margin-top: 0.45rem;
}

.article-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.9rem 1rem;
}

.spec-list {
  display: grid;
  gap: 0.8rem;
  margin: 1.2rem 0;
}

.spec-list div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.9rem;
}

.article-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hub-section {
  margin-top: 2.6rem;
}

.hub-section .article-grid {
  margin-top: 1rem;
}

.keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.keyword-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.48rem 0.7rem;
  color: #2d3834;
  font-weight: 700;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.95rem 1rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 780;
}

.faq-list p {
  margin-bottom: 0;
}

.language-main {
  display: grid;
  min-height: 100vh;
  place-content: center;
  justify-items: center;
  padding: 2rem;
  text-align: center;
}

.language-main img {
  border-radius: 12px;
}

.language-main h1 {
  margin: 1rem 0 0.35rem;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1;
}

.language-main p {
  max-width: 32rem;
  margin: 0;
  color: var(--muted);
}

.language-main .button.secondary {
  border-color: var(--line);
  background: #fff;
}

@media (max-width: 760px) {
  .site-header,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    width: min(100% - 2rem, 620px);
    min-height: 0;
    padding: 3.4rem 0 2.6rem;
  }

  .hero h1 {
    font-size: clamp(2.7rem, 13vw, 4.2rem);
  }

  .editor-shot {
    width: 100%;
  }

  .proof-band-inner {
    grid-template-columns: 1fr;
    width: min(100% - 2rem, 620px);
    padding: 0;
  }

  .proof-band-inner > div,
  .proof-band-inner > div:first-child {
    padding: 1.7rem 0;
  }

  .proof-band-inner > div + div {
    border-top: 1px solid #bedbce;
    border-left: 0;
  }

  .trust-strip,
  .feature-grid,
  .article-grid,
  .download-panel {
    grid-template-columns: 1fr;
  }

  .trust-strip div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .detail-list > div {
    grid-template-columns: 1fr;
  }

  .download-actions {
    margin-top: 0;
  }

  .article-body h1 {
    font-size: clamp(1.85rem, 8.6vw, 2.45rem);
    line-height: 1.12;
    overflow-wrap: anywhere;
  }

  .article-body h2 {
    overflow-wrap: anywhere;
  }

  .article-body .lead {
    font-size: 1.06rem;
  }
}