:root {
  --navy: #071529;
  --navy-soft: #0d2743;
  --blue: #0b4d78;
  --cyan: #32d5e8;
  --cyan-soft: #a8f0f4;
  --amber: #ffad5c;
  --paper: #f7fafb;
  --white: #ffffff;
  --ink: #0c1a29;
  --muted: #5a6878;
  --line: rgba(12, 26, 41, 0.14);
  --radius: 1.25rem;
  --shadow: 0 1.5rem 4rem rgba(3, 24, 47, 0.14);
  --wrap: min(75rem, calc(100% - 2.5rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

button,
input {
  font: inherit;
}

:focus-visible {
  outline: 0.2rem solid var(--amber);
  outline-offset: 0.2rem;
}

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.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: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.8rem 1rem;
  color: var(--navy);
  background: var(--white);
  border-radius: 0.5rem;
  transform: translateY(-180%);
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  color: var(--white);
  background: rgba(7, 21, 41, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 4.9rem;
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.94rem;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  color: var(--navy);
  background: var(--cyan);
  border-radius: 50%;
}

.brand-mark svg {
  width: 1.65rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.nav nav {
  display: flex;
  justify-content: center;
  gap: clamp(0.8rem, 1.7vw, 1.6rem);
  margin-left: auto;
}

.nav nav a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.84rem;
  text-decoration: none;
}

.nav nav a:hover,
.nav nav a:focus-visible {
  color: var(--white);
}

.header-cta {
  padding: 0.72rem 1rem;
  color: var(--navy);
  background: var(--cyan);
  border-radius: 999px;
  font-size: 0.83rem;
  font-weight: 800;
  text-decoration: none;
}

.redirect-note {
  color: #382309;
  background: #fff0d6;
  border-bottom: 1px solid #d8ad70;
}

.redirect-note .wrap {
  padding-block: 0.7rem;
  font-size: 0.9rem;
}

.hero {
  position: relative;
  min-height: clamp(40rem, 78vh, 50rem);
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(4, 14, 30, 0.97) 0%, rgba(4, 14, 30, 0.82) 38%, rgba(4, 14, 30, 0.08) 72%),
    linear-gradient(0deg, rgba(4, 14, 30, 0.65), transparent 48%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-block: 7rem 8rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan-soft);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: #146785;
}

.eyebrow.light {
  color: var(--cyan-soft);
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.08;
  text-wrap: balance;
}

h1 {
  max-width: 11ch;
  margin-bottom: 1.5rem;
  font-size: clamp(3.35rem, 7.4vw, 6.9rem);
  letter-spacing: -0.072em;
}

h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.2rem, 4.7vw, 4.15rem);
  letter-spacing: -0.057em;
}

h3 {
  font-size: 1.3rem;
  letter-spacing: -0.03em;
}

h4 {
  margin-bottom: 0.8rem;
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.hero-lead {
  max-width: 38rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: clamp(1.05rem, 1.6vw, 1.24rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 3.2rem;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

.button.primary {
  color: var(--navy);
  background: var(--cyan);
}

.button.primary:hover {
  background: #75e8f1;
}

.button.secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.45);
}

.button.secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

.ai-label {
  position: absolute;
  bottom: 1.3rem;
  left: 0;
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.42rem 0.7rem;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(4, 14, 30, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0.4rem;
  font-size: 0.71rem;
}

.orbit-label {
  position: absolute;
  z-index: 2;
  right: 2vw;
  bottom: -0.22em;
  color: rgba(255, 255, 255, 0.07);
  font-size: clamp(8rem, 19vw, 17rem);
  font-weight: 950;
  line-height: 1;
  letter-spacing: -0.1em;
  user-select: none;
}

.search-band {
  position: relative;
  z-index: 3;
  color: var(--navy);
  background: var(--cyan);
}

.search-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(25rem, 1.15fr);
  align-items: center;
  gap: 3rem;
  padding-block: 2.4rem;
}

.search-layout h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.4rem);
}

.search-layout p:last-child {
  margin: 0.45rem 0 0;
}

.search-layout label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  font-weight: 800;
}

.search-box {
  display: flex;
  padding: 0.38rem;
  background: var(--white);
  border-radius: 0.85rem;
  box-shadow: 0 0.8rem 2rem rgba(2, 42, 63, 0.14);
}

.search-box input[type="search"] {
  min-width: 0;
  flex: 1;
  padding: 0.8rem 1rem;
  color: var(--ink);
  background: transparent;
  border: 0;
}

.search-box button {
  padding: 0.78rem 1.1rem;
  color: var(--white);
  background: var(--navy);
  border: 0;
  border-radius: 0.6rem;
  font-weight: 800;
  cursor: pointer;
}

.section {
  padding-block: clamp(5rem, 9vw, 8rem);
}

.basics {
  background: var(--paper);
}

.basics-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.82fr) minmax(27rem, 1.18fr);
  gap: clamp(3rem, 8vw, 7rem);
}

.basics-heading p:last-child {
  color: var(--muted);
  font-size: 1.07rem;
}

.process {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.process li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding-block: 1.45rem;
  border-bottom: 1px solid var(--line);
}

.process li > span {
  color: #14708f;
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.1em;
}

.process strong {
  font-size: 1.08rem;
}

.process p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 5rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.fact-strip article {
  padding: 1.7rem;
}

.fact-strip article + article {
  border-left: 1px solid var(--line);
}

.fact-strip article > span {
  display: inline-block;
  margin-bottom: 2.8rem;
  color: var(--blue);
  font-size: 2rem;
}

.fact-strip p {
  margin-bottom: 0;
  color: var(--muted);
}

.criteria {
  color: var(--white);
  background: var(--navy);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(20rem, 1.05fr);
  align-items: end;
  gap: clamp(2rem, 7vw, 7rem);
}

.section-heading h2 {
  max-width: 14ch;
}

.section-heading > p {
  max-width: 36rem;
  margin-left: auto;
  color: rgba(255, 255, 255, 0.64);
}

.criteria-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 3.5rem;
}

.criteria-grid article {
  min-height: 19rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 0.85rem;
}

.criteria-grid article > span {
  display: inline-block;
  margin-bottom: 4rem;
  color: var(--cyan);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.criteria-grid p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.64);
}

.models {
  background: #edf4f6;
}

.models-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(20rem, 1.05fr);
  gap: clamp(2rem, 7vw, 7rem);
}

.models-intro p {
  color: var(--muted);
}

.no-images {
  padding: 0.9rem 1rem;
  color: #173849 !important;
  background: #d9edf1;
  border-left: 0.25rem solid var(--cyan);
}

.model-group-title {
  margin: 4rem 0 1.2rem;
  color: #375164;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.model-card {
  padding: 1.6rem;
  background: var(--white);
  border: 1px solid rgba(12, 26, 41, 0.12);
  border-radius: var(--radius);
}

.model-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.model-code {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.model-type {
  padding: 0.32rem 0.55rem;
  color: #28546a;
  background: #e4f1f4;
  border-radius: 999px;
  font-size: 0.7rem;
}

.model-card p {
  color: var(--muted);
}

.model-card ul {
  margin: 1.2rem 0;
  padding-left: 1.2rem;
  color: #415160;
}

.model-card a {
  display: inline-block;
  color: #075c7b;
  font-weight: 800;
}

.model-card.pro {
  color: var(--white);
  background: var(--navy-soft);
  border-color: var(--navy-soft);
}

.model-card.pro p,
.model-card.pro ul {
  color: rgba(255, 255, 255, 0.67);
}

.model-card.pro .model-code,
.model-card.pro a {
  color: var(--cyan);
}

.model-card.pro .model-type {
  color: var(--cyan-soft);
  background: rgba(50, 213, 232, 0.12);
}

.affiliate-note {
  margin: 1.4rem 0 0;
  color: #52616e;
  font-size: 0.84rem;
}

.accessories {
  color: var(--white);
  background: var(--navy);
}

.accessory-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 3.5rem;
}

.accessory-grid a {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  align-items: center;
  gap: 0.1rem 0.75rem;
  min-height: 6rem;
  padding: 1rem 1.2rem;
  color: var(--white);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0.85rem;
  text-decoration: none;
}

.accessory-grid a:hover {
  border-color: rgba(50, 213, 232, 0.65);
  background: rgba(255, 255, 255, 0.09);
}

.accessory-grid a > span:first-child {
  grid-row: 1 / 3;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
}

.accessory-grid strong,
.accessory-grid small {
  display: block;
}

.accessory-grid small {
  color: rgba(255, 255, 255, 0.58);
}

.accessory-grid b {
  grid-column: 3;
  grid-row: 1 / 3;
}

.workflow {
  background: var(--paper);
}

.workflow-card {
  display: grid;
  grid-template-columns: minmax(14rem, 0.65fr) minmax(22rem, 1.35fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
  padding: clamp(2rem, 5vw, 4.5rem);
  color: var(--white);
  background:
    radial-gradient(circle at 18% 30%, rgba(50, 213, 232, 0.2), transparent 18rem),
    var(--blue);
  border-radius: calc(var(--radius) * 1.2);
  box-shadow: var(--shadow);
}

.workflow-orbit {
  position: relative;
  display: grid;
  width: clamp(11rem, 20vw, 16rem);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 50%;
}

.workflow-orbit::before,
.workflow-orbit::after {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(50, 213, 232, 0.46);
  border-radius: 50%;
  content: "";
  transform: rotate(55deg) scaleY(0.4);
}

.workflow-orbit::after {
  transform: rotate(-55deg) scaleY(0.4);
}

.workflow-orbit span {
  color: var(--cyan);
  font-size: 3rem;
  font-weight: 950;
}

.workflow-card h2 {
  max-width: 14ch;
}

.workflow-card ul {
  margin-bottom: 0;
  padding-left: 1.2rem;
  color: rgba(255, 255, 255, 0.74);
}

.workflow-card li + li {
  margin-top: 0.5rem;
}

.faq {
  background: #edf4f6;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.8fr) minmax(25rem, 1.2fr);
  gap: clamp(3rem, 8vw, 7rem);
}

.accordion {
  border-top: 1px solid var(--line);
}

details {
  border-bottom: 1px solid var(--line);
}

summary {
  position: relative;
  padding: 1.4rem 3rem 1.4rem 0;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  position: absolute;
  top: 1.25rem;
  right: 0.4rem;
  content: "+";
  color: var(--blue);
  font-size: 1.5rem;
  line-height: 1;
}

details[open] summary::after {
  content: "−";
}

details p {
  padding-right: 2rem;
  color: var(--muted);
}

.final-cta {
  color: var(--navy);
  background: var(--cyan);
}

.final-cta .eyebrow {
  color: #075d77;
}

.final-cta .button.primary {
  color: var(--white);
  background: var(--navy);
}

.final-cta-inner {
  display: flex;
  min-height: 20rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 4rem;
}

.final-cta h2 {
  max-width: 15ch;
  margin-bottom: 0;
}

.site-footer {
  color: rgba(255, 255, 255, 0.7);
  background: #030d1a;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  padding-block: 4rem 3rem;
}

.footer-main p {
  max-width: 48rem;
  margin: 1.2rem 0 0;
}

.footer-main nav {
  display: flex;
  gap: 1.3rem;
  align-items: start;
}

.footer-main nav a {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
}

@media (max-width: 1050px) {
  .nav nav {
    display: none;
  }

  .header-cta {
    margin-left: auto;
  }

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

@media (max-width: 900px) {
  .search-layout,
  .basics-layout,
  .section-heading,
  .models-intro,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section-heading > p {
    margin-left: 0;
  }

  .fact-strip {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  :root {
    --wrap: min(100% - 1.25rem, 75rem);
  }

  html {
    scroll-padding-top: 5.8rem;
  }

  .nav {
    min-height: 4.3rem;
    flex-wrap: wrap;
    gap: 0.45rem;
    padding-block: 0.65rem;
  }

  .brand {
    font-size: 0.78rem;
  }

  .brand-mark {
    width: 2rem;
    height: 2rem;
  }

  .header-cta {
    display: none;
  }

  .nav nav {
    order: 3;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    gap: 1rem;
    padding-bottom: 0.15rem;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .nav nav a {
    font-size: 0.77rem;
    white-space: nowrap;
  }

  .hero {
    min-height: 45rem;
  }

  .hero-image {
    object-position: 66% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(4, 14, 30, 0.94), rgba(4, 14, 30, 0.38)),
      linear-gradient(0deg, rgba(4, 14, 30, 0.84), transparent 58%);
  }

  .hero-content {
    padding-block: 5rem 6rem;
  }

  h1 {
    font-size: clamp(3rem, 14.8vw, 5rem);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .ai-label {
    max-width: calc(100vw - 2rem);
  }

  .search-layout {
    padding-block: 2rem;
  }

  .search-box {
    display: grid;
  }

  .search-box button {
    min-height: 3rem;
  }

  .section {
    padding-block: 4.5rem;
  }

  .criteria-grid,
  .model-grid,
  .accessory-grid {
    grid-template-columns: 1fr;
  }

  .criteria-grid article {
    min-height: 0;
  }

  .criteria-grid article > span {
    margin-bottom: 2.5rem;
  }

  .workflow-card {
    grid-template-columns: 1fr;
  }

  .workflow-orbit {
    width: 10rem;
  }

  .final-cta-inner {
    min-height: 22rem;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-main nav {
    flex-direction: column;
    gap: 0.7rem;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

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

@media (prefers-contrast: more) {
  .hero-shade {
    background: rgba(3, 11, 24, 0.9);
  }

  .criteria-grid article,
  .accessory-grid a {
    border-color: rgba(255, 255, 255, 0.65);
  }
}