:root {
  color-scheme: light;
  --bg: #f5f8fc;
  --surface: #ffffff;
  --surface-soft: #eef4fb;
  --text: #111827;
  --muted: #5b6678;
  --line: #d9e3ee;
  --accent: #1f6feb;
  --accent-strong: #04084f;
  --accent-soft: #e5efff;
  --second: #168a7a;
  --third: #6658c8;
  --shadow: 0 18px 52px rgba(17, 24, 39, 0.11);
  --radius: 8px;
  --max: 1180px;
}

body[data-theme="clinical"] {
  --bg: #f7f9fb;
  --surface: #ffffff;
  --surface-soft: #eef3f7;
  --text: #111827;
  --muted: #586474;
  --line: #d8e1ea;
  --accent: #1f6feb;
  --accent-strong: #164fb0;
  --accent-soft: #e5efff;
  --second: #14866d;
  --third: #6b5fc7;
  --shadow: 0 18px 52px rgba(17, 24, 39, 0.11);
}

body[data-theme="frontier"] {
  --bg: #101210;
  --surface: #181d1a;
  --surface-soft: #202721;
  --text: #f5f3e7;
  --muted: #b9c0b3;
  --line: #343c35;
  --accent: #f1c453;
  --accent-strong: #ffe083;
  --accent-soft: #352e1b;
  --second: #6fc2b0;
  --third: #d77b63;
  --shadow: 0 22px 58px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 78% 18%, rgba(31, 111, 235, 0.12), transparent 32%),
    radial-gradient(circle at 18% 84%, rgba(102, 88, 200, 0.09), transparent 30%),
    var(--bg);
  content: "";
}

a {
  color: inherit;
}

.site-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 58px;
  padding: 8px max(22px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  background: #ffffff;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: clamp(124px, 13vw, 184px);
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(34px, 6vw, 76px);
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.main-nav a {
  min-width: 0;
  padding: 9px 0;
  border-radius: 6px;
  color: #04084f;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0;
  text-align: center;
  text-decoration: none;
}

.main-nav a:hover {
  background: transparent;
  color: #000333;
}

.section-band,
.site-footer {
  padding-right: max(22px, calc((100vw - var(--max)) / 2));
  padding-left: max(22px, calc((100vw - var(--max)) / 2));
}

.section-band {
  scroll-margin-top: 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  font-weight: 850;
}

.section-heading h2,
.hero h1,
.about-layout h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero {
  position: relative;
  display: block;
  align-items: center;
  min-height: calc(100vh - 58px);
  padding-top: 92px;
  padding-bottom: 84px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(2, 8, 18, 0.82), rgba(5, 14, 28, 0.58) 50%, rgba(5, 14, 28, 0.34)),
    url("assets/home.png") center / cover no-repeat,
    #08111d;
  color: #f7fbf8;
}

.hero::before,
.problem-band::before,
.proof-band::before,
.studio-band::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.hero::before {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.44), transparent 62%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 118px);
}

.hero-copy {
  position: relative;
  z-index: 1;
  align-self: center;
  width: min(100%, 1180px);
  max-width: none;
  margin: 0 auto;
  padding: 16px 0;
}

.pai-section-nav {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-self: start;
  gap: 14px;
  width: min(166px, 100%);
  margin: 0;
  color: rgba(255, 255, 255, 0.54);
  font-size: 0.84rem;
  font-weight: 500;
}

.pai-section-nav a {
  position: relative;
  padding: 0 0 7px;
  line-height: 1.25;
  text-decoration: none;
}

.pai-section-nav a.active {
  color: #ffffff;
  font-weight: 600;
}

.lead {
  max-width: 980px;
  margin: 18px 0 0;
  color: #ffffff;
  font-size: clamp(1.18rem, 1.55vw, 1.5rem);
  font-weight: 400;
  line-height: 1.45;
}

.hero-kicker {
  max-width: 980px;
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.18rem, 1.75vw, 1.5rem);
  font-weight: 400;
  line-height: 1.45;
}

.hero h1 {
  color: #ffffff;
  max-width: 1120px;
  font-size: clamp(2.45rem, 4.8vw, 4.45rem);
  line-height: 1.03;
  font-weight: 500;
}

.hero-actions,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin-top: 34px;
}

.cta-row {
  justify-content: center;
  margin-top: 34px;
}

.primary-cta,
.secondary-cta,
.wide-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  min-width: 156px;
  padding: 13px 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-weight: 850;
  text-decoration: none;
  box-shadow: 0 12px 26px rgba(31, 111, 235, 0.22);
  transition:
    box-shadow 160ms ease,
    transform 160ms ease,
    background 160ms ease;
}

.problem-band .primary-cta,
.problem-band .secondary-cta,
.proof-band .primary-cta,
.proof-band .secondary-cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-width: 210px;
  border-color: rgba(205, 232, 255, 0.68);
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(218, 236, 255, 0.2), rgba(119, 145, 176, 0.12) 48%, rgba(255, 255, 255, 0.11)),
    rgba(28, 43, 66, 0.28);
  color: #ffffff;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    inset 0 -1px 0 rgba(142, 218, 255, 0.2),
    inset 10px 0 24px rgba(255, 255, 255, 0.08),
    inset -12px -12px 28px rgba(6, 12, 30, 0.28),
    0 18px 54px rgba(0, 0, 0, 0.34);
  -webkit-backdrop-filter: blur(34px) saturate(180%);
  backdrop-filter: blur(34px) saturate(180%);
}

.primary-cta:hover,
.secondary-cta:hover {
  background: var(--accent-strong);
  box-shadow: 0 16px 34px rgba(31, 111, 235, 0.28);
  transform: translateY(-1px);
}

.problem-band .primary-cta:hover,
.problem-band .secondary-cta:hover,
.proof-band .primary-cta:hover,
.proof-band .secondary-cta:hover {
  border-color: rgba(226, 244, 255, 0.82);
  background:
    linear-gradient(135deg, rgba(226, 241, 255, 0.24), rgba(136, 163, 194, 0.14) 48%, rgba(255, 255, 255, 0.13)),
    rgba(36, 54, 80, 0.32);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.48),
    inset 0 -1px 0 rgba(142, 218, 255, 0.24),
    inset 10px 0 24px rgba(255, 255, 255, 0.1),
    inset -12px -12px 28px rgba(6, 12, 30, 0.24),
    0 22px 62px rgba(0, 0, 0, 0.38);
}

.hero .primary-cta,
.hero .secondary-cta {
  min-width: 170px;
  border-color: rgba(255, 255, 255, 0.7);
}

.hero .primary-cta {
  background: #ffffff;
  color: #04084f;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
}

.hero .secondary-cta {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  box-shadow: none;
  backdrop-filter: blur(18px);
}

.hero .primary-cta:hover,
.hero .secondary-cta:hover {
  background: #e8f1ff;
  color: #04084f;
}

.problem-band,
.studio-band,
.proof-band,
.contact-band,
.about-band {
  padding-top: 62px;
  padding-bottom: 62px;
  border-top: 1px solid var(--line);
}

.problem-band,
.proof-band,
.studio-band {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  border-top: 0;
}

.proof-band,
.studio-band {
  padding-top: 44px;
  padding-bottom: 44px;
}

.problem-band {
  display: grid;
  grid-template-columns: minmax(210px, 0.48fr) minmax(0, 1.52fr);
  align-items: center;
  align-content: center;
  gap: 42px;
  background:
    linear-gradient(90deg, rgba(5, 10, 20, 0.96), rgba(12, 28, 50, 0.78) 50%, rgba(86, 119, 150, 0.52)),
    radial-gradient(circle at 78% 42%, rgba(146, 185, 226, 0.46), transparent 24%),
    radial-gradient(circle at 58% 60%, rgba(255, 255, 255, 0.14), transparent 24%),
    #0c1626;
  color: #ffffff;
}

.problem-band::before {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.42), transparent 66%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 116px);
  backdrop-filter: blur(6px);
}

.proof-band {
  display: grid;
  grid-template-columns: minmax(210px, 0.48fr) minmax(0, 1.52fr);
  align-items: center;
  align-content: center;
  gap: 42px;
  background:
    linear-gradient(90deg, #050a13 0%, rgba(8, 18, 32, 0.98) 42%, rgba(33, 62, 94, 0.76)),
    radial-gradient(circle at 86% 18%, rgba(255, 255, 255, 0.18), transparent 16%),
    radial-gradient(circle at 68% 62%, rgba(31, 111, 235, 0.26), transparent 24%);
  color: #ffffff;
}

.studio-band {
  display: grid;
  grid-template-columns: minmax(210px, 0.48fr) minmax(0, 1.52fr);
  align-items: center;
  align-content: center;
  gap: 42px;
  background:
    linear-gradient(rgba(12, 24, 38, 0.9), rgba(12, 24, 38, 0.92)),
    radial-gradient(circle at 52% 58%, rgba(31, 111, 235, 0.24), transparent 24%),
    radial-gradient(circle at 70% 34%, rgba(110, 168, 255, 0.24), transparent 24%),
    #101f31;
  color: #ffffff;
}

.section-heading {
  position: relative;
  z-index: 1;
  display: block;
  margin-bottom: 28px;
}

.section-heading h2,
.about-layout h2 {
  max-width: 860px;
  color: var(--muted);
  font-size: clamp(1.18rem, 1.55vw, 1.5rem);
  line-height: 1.42;
  font-weight: 500;
}

.statement-heading h2 {
  max-width: 860px;
  color: var(--muted);
  font-size: clamp(1.18rem, 1.55vw, 1.5rem);
  line-height: 1.42;
  font-weight: 500;
}

.about-layout h2 {
  color: #111827;
  font-weight: 500;
}

.problem-band .section-heading h2,
.studio-band .section-heading h2,
.proof-band .section-heading h2 {
  color: #ffffff;
}

.problem-band .eyebrow,
.studio-band .eyebrow,
.proof-band .eyebrow {
  color: #8dbdff;
  font-size: 1rem;
}

.contact-band .eyebrow,
.about-band .eyebrow {
  font-weight: 850;
}

.use-case-grid,
.proof-grid,
.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
}

.use-case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 0;
}

.proof-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 34px;
  margin-top: 0;
  counter-reset: strength;
}

.proof-intro {
  grid-column: 1 / -1;
}

.proof-intro h2 {
  margin: 0 0 14px;
  max-width: 960px;
  color: #ffffff;
  font-size: clamp(1.6rem, 3.25vw, 3rem);
  line-height: 1.14;
  font-weight: 500;
}

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

.section-cta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  grid-column: 2;
  margin-top: 30px;
}

.proof-band .section-cta {
  margin-top: 12px;
}

article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.problem-band article,
.proof-band article,
.studio-band article {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.13);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
}

.problem-band article {
  min-height: 0;
  overflow: visible;
  border: 0;
  background: transparent;
  color: #ffffff;
  box-shadow: none;
  backdrop-filter: none;
}

.proof-band article {
  position: relative;
  min-height: 0;
  overflow: visible;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  counter-increment: strength;
}

.proof-band article::before {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 28px;
  margin-bottom: 20px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #9fc8ff;
  content: counter(strength, decimal-leading-zero);
  font-size: 1.08rem;
  font-weight: 760;
  line-height: 1;
}

.proof-band article::after {
  display: none;
}

.contact-card {
  position: relative;
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.contact-card:hover,
.contact-card:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.1);
  outline: none;
  transform: translateY(-2px);
}

.contact-card::after {
  content: "Form";
  position: absolute;
  top: 16px;
  right: 16px;
  display: inline-flex;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.7rem;
  font-weight: 500;
}

.form-band {
  min-height: calc(100vh - 58px);
  padding-top: 72px;
  padding-bottom: 76px;
  background:
    linear-gradient(120deg, rgba(245, 248, 252, 0.92), rgba(229, 239, 255, 0.78)),
    #f5f8fc;
}

.form-shell {
  display: grid;
  grid-template-columns: minmax(260px, 0.58fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
  max-width: var(--max);
  margin: 0 auto;
}

.form-intro {
  position: sticky;
  top: 28px;
}

.form-intro h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(2.1rem, 4vw, 4rem);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: 0;
}

.form-intro p:not(.eyebrow) {
  max-width: 460px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.6;
}

.request-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.request-form label {
  display: grid;
  gap: 8px;
}

.request-form span {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 760;
}

.request-form em {
  color: var(--muted);
  font-style: normal;
  font-weight: 500;
}

.request-form input,
.request-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--text);
  font: inherit;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.request-form input {
  min-height: 46px;
  padding: 10px 12px;
}

.request-form textarea {
  min-height: 160px;
  resize: vertical;
  padding: 12px;
}

.request-form input:focus,
.request-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(31, 111, 235, 0.12);
  outline: none;
}

.full-field,
.form-submit {
  grid-column: 1 / -1;
}

.form-submit {
  width: fit-content;
  min-width: 148px;
  cursor: pointer;
  font: inherit;
}

.use-case-grid article,
.proof-grid article,
.contact-card,
.ceo-card {
  padding: 20px;
}

.problem-band .use-case-grid article {
  display: grid;
  align-content: start;
  gap: 16px;
  padding: 0;
}

.use-case-image {
  display: block;
  width: 100%;
  height: clamp(230px, 30vw, 380px);
  border-radius: 0;
  object-fit: cover;
  object-position: center top;
}

.problem-band article h3,
.problem-band article p {
  padding-right: 14px;
  padding-left: 14px;
}

.image-credit {
  position: relative;
  z-index: 1;
  grid-column: 1;
  align-self: end;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.42);
  font-size: 0.62rem;
  line-height: 1.3;
}

.problem-band .section-heading,
.proof-band .section-heading {
  margin-bottom: 0;
  width: min(166px, 100%);
}

.studio-band .section-heading {
  margin-bottom: 0;
  width: min(166px, 100%);
}

.studio-band .section-heading {
  max-width: 280px;
  margin-right: 0;
  margin-left: 0;
  text-align: left;
}

.process-carousel {
  position: relative;
  z-index: 1;
  grid-column: 2;
  width: min(100%, 760px);
  margin: 0 auto;
}

.process-viewport {
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.process-track {
  display: flex;
  transition: transform 360ms ease;
  will-change: transform;
}

.studio-band .process-slide {
  flex: 0 0 100%;
  min-width: 100%;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.process-slide img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.process-copy {
  padding: 10px 24px 0;
}

.process-copy h3 {
  margin: 0;
  color: #ffffff;
  font-size: clamp(1.35rem, 2vw, 1.9rem);
  line-height: 1.18;
  font-weight: 500;
}

.process-copy p {
  max-width: none;
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.16vw, 1.15rem);
  line-height: 1.55;
}

.carousel-arrow {
  position: absolute;
  top: 42%;
  z-index: 2;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(205, 232, 255, 0.68);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(218, 236, 255, 0.22), rgba(119, 145, 176, 0.12)),
    rgba(28, 43, 66, 0.34);
  color: #ffffff;
  cursor: pointer;
  font-size: 1.4rem;
  font-weight: 600;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    inset -10px -10px 22px rgba(6, 12, 30, 0.28),
    0 18px 42px rgba(0, 0, 0, 0.34);
  transform: translateY(-50%);
  transition:
    opacity 160ms ease,
    transform 160ms ease,
    border-color 160ms ease;
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  backdrop-filter: blur(28px) saturate(180%);
}

.carousel-arrow:hover:not(:disabled) {
  border-color: rgba(226, 244, 255, 0.86);
  transform: translateY(-50%) scale(1.04);
}

.carousel-arrow:disabled {
  cursor: default;
  opacity: 0.34;
}

.carousel-arrow-prev {
  left: -24px;
}

.carousel-arrow-next {
  right: -24px;
}

h3 {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.28;
  font-weight: 500;
}

.contact-card h3 {
  font-weight: 850;
}

.contact-card p,
article p,
.about-layout p:not(.eyebrow) {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.58;
}

.problem-band h3,
.proof-band h3,
.studio-band h3 {
  color: #ffffff;
}

.proof-band article h3 {
  max-width: 640px;
  color: #9fc8ff;
  font-size: clamp(1.44rem, 1.72vw, 1.72rem);
  line-height: 1.22;
  font-weight: 500;
}

.problem-band h3 {
  color: #ffffff;
  min-height: 2.56em;
}

.problem-band article p,
.proof-band article p,
.studio-band article p {
  color: rgba(255, 255, 255, 0.78);
}

.proof-band article p {
  max-width: 660px;
  margin-top: 30px;
  font-size: clamp(1.06rem, 1.25vw, 1.24rem);
  line-height: 1.5;
}

.studio-band article p {
  font-size: clamp(1rem, 1.08vw, 1.12rem);
  line-height: 1.55;
}

.problem-band article p {
  color: rgba(255, 255, 255, 0.78);
}

ul {
  margin: 14px 0 0;
  padding-left: 0;
  color: var(--muted);
  font-size: 0.92rem;
  list-style: none;
  line-height: 1.52;
}

li {
  position: relative;
  padding-left: 18px;
}

li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 8px;
  height: 2px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 58%, var(--muted));
  content: "";
}

li + li {
  margin-top: 5px;
}

.wide-contact {
  width: 100%;
  margin-top: 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(340px, 0.72fr);
  gap: 28px;
  align-items: start;
}

.ceo-card {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 22px;
  box-shadow: var(--shadow);
}

.portrait {
  display: block;
  width: 132px;
  height: 132px;
  border-radius: var(--radius);
  object-fit: cover;
  object-position: center;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  padding-top: 28px;
  padding-bottom: 30px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  color: var(--text);
  font-weight: 850;
}

@media (max-width: 920px) {
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .site-header {
    align-items: center;
    gap: 18px;
  }

  .main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    width: auto;
  }

  .main-nav a {
    min-width: 0;
  }

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

  .form-shell {
    grid-template-columns: 1fr;
  }

  .form-intro {
    position: static;
  }

  .hero,
  .problem-band,
  .proof-band,
  .studio-band {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 20px;
  }

  .hero .pai-section-nav,
  .problem-band .section-heading,
  .proof-band .section-heading,
  .studio-band .section-heading {
    grid-column: 1;
  }

  .hero-copy,
  .use-case-grid,
  .proof-grid,
  .process-carousel,
  .section-cta {
    grid-column: 2;
  }

  .hero {
    min-height: auto;
    background-position: center;
  }

  .hero-copy {
    margin-left: 0;
  }

  .problem-band,
  .proof-band,
  .studio-band {
    min-height: auto;
  }

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

  .use-case-grid {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 12px;
    scroll-snap-type: x proximity;
  }

  .use-case-grid article {
    flex: 0 0 220px;
    min-height: 170px;
    scroll-snap-align: start;
  }

  .process-carousel {
    width: min(100%, 720px);
  }

  .carousel-arrow-prev {
    left: 10px;
  }

  .carousel-arrow-next {
    right: 10px;
  }
}

@media (max-width: 640px) {
  .section-band,
  .site-footer,
  .site-header {
    padding-right: 16px;
    padding-left: 16px;
  }

  .brand-logo {
    width: 122px;
  }

  .proof-grid,
  .contact-grid,
  .request-form {
    grid-template-columns: 1fr;
  }

  .form-band {
    padding-top: 48px;
    padding-bottom: 54px;
  }

  .form-submit {
    width: 100%;
  }

  .hero {
    padding-top: 58px;
    padding-bottom: 54px;
  }

  .hero-copy {
    margin-left: 0;
  }

  .hero,
  .problem-band,
  .proof-band,
  .studio-band {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .hero .pai-section-nav,
  .problem-band .section-heading,
  .proof-band .section-heading,
  .studio-band .section-heading,
  .hero-copy,
  .use-case-grid,
  .proof-grid,
  .process-carousel,
  .section-cta {
    grid-column: 1;
  }

  .pai-section-nav {
    flex-direction: row;
    gap: 16px;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    font-size: 0.82rem;
    white-space: nowrap;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 12vw, 3.25rem);
    line-height: 0.98;
  }

  .lead {
    font-size: 1.04rem;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .problem-band,
  .proof-band,
  .studio-band {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .proof-band .section-heading h2 {
    font-size: clamp(0.95rem, 4vw, 1.24rem);
    line-height: 1.16;
  }

  .use-case-grid {
    margin-right: -16px;
  }

  .use-case-grid article {
    flex-basis: 210px;
  }

  .process-carousel {
    width: 100%;
  }

  .process-viewport {
    border-radius: 0;
  }

  .process-copy {
    padding: 10px 16px 0;
  }

  .process-copy h3 {
    font-size: 1.22rem;
  }

  .carousel-arrow {
    width: 42px;
    height: 42px;
    font-size: 1.18rem;
  }

  .section-cta {
    gap: 10px;
  }

  .primary-cta,
  .secondary-cta {
    width: 100%;
    min-width: 0;
  }

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