:root {
  --ink: #101820;
  --deep-navy: #082338;
  --petrol-blue: #0F4C6D;
  --brush-blue: #176D91;
  --burnt-orange: #E4571E;
  --flame-amber: #FFB13B;
  --oxide-red: #9E2F1D;
  --warm-canvas: #F3E7D4;
  --canvas-muted: #C9BBA7;
  --soft-white: #FFF8EC;
  --line: rgba(255, 248, 236, 0.16);
  --surface: rgba(255, 248, 236, 0.055);
  --shadow: rgba(0, 0, 0, 0.38);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--soft-white);
  background:
    radial-gradient(circle at 80% 8%, rgba(228, 87, 30, 0.22), transparent 36rem),
    radial-gradient(circle at 18% 28%, rgba(23, 109, 145, 0.22), transparent 32rem),
    linear-gradient(145deg, var(--ink), var(--deep-navy) 62%, #06121b);
  font-family: "Public Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  background:
    linear-gradient(110deg, transparent 0 18%, rgba(255, 177, 59, 0.12) 18.2%, transparent 19% 58%, rgba(23, 109, 145, 0.1) 58.3%, transparent 59%),
    repeating-linear-gradient(90deg, rgba(255, 248, 236, 0.025) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(255, 248, 236, 0.018) 0 1px, transparent 1px 92px);
  mix-blend-mode: screen;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    radial-gradient(circle at 30% 20%, rgba(255, 248, 236, 0.28) 0 1px, transparent 2px),
    radial-gradient(circle at 70% 70%, rgba(255, 177, 59, 0.24) 0 1px, transparent 2px);
  background-size: 88px 88px, 132px 132px;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  backdrop-filter: blur(18px);
  background: rgba(8, 35, 56, 0.68);
  border-bottom: 1px solid var(--line);
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: var(--ink);
  background: linear-gradient(135deg, var(--warm-canvas), var(--flame-amber) 52%, var(--burnt-orange));
  box-shadow: 0 0 38px rgba(228, 87, 30, 0.34);
}

nav a {
  color: rgba(255, 248, 236, 0.78);
  font-size: 0.92rem;
}

nav a:hover {
  color: var(--flame-amber);
}

.hero {
  min-height: calc(100vh - 79px);
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  align-items: center;
  gap: clamp(28px, 5vw, 80px);
  padding: clamp(48px, 8vw, 118px) clamp(18px, 5vw, 72px) 64px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.archive-label {
  margin: 0 0 18px;
  color: var(--flame-amber);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
}

h1 {
  font-size: clamp(3.2rem, 8vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
  max-width: 760px;
}

h2 {
  font-size: clamp(2.1rem, 4vw, 4.25rem);
  line-height: 1;
  letter-spacing: -0.045em;
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.hero-lede {
  max-width: 650px;
  margin: 28px 0 0;
  color: rgba(255, 248, 236, 0.78);
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 16px;
  padding: 14px 20px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
}

.button.primary {
  color: var(--soft-white);
  background: linear-gradient(135deg, var(--burnt-orange), var(--oxide-red));
  box-shadow: 0 18px 48px rgba(228, 87, 30, 0.24);
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 248, 236, 0.08);
}

.button:hover {
  transform: translateY(-2px);
}

.hero-figure {
  position: relative;
  margin: 0;
  isolation: isolate;
}

.hero-figure::before,
.hero-figure::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(4px);
  z-index: -1;
}

.hero-figure::before {
  inset: 14% -4% auto 42%;
  height: 32%;
  background: linear-gradient(90deg, transparent, rgba(255, 177, 59, 0.36), rgba(228, 87, 30, 0.28), transparent);
  transform: rotate(-16deg);
}

.hero-figure::after {
  inset: auto 0 8% 16%;
  height: 22%;
  background: linear-gradient(90deg, transparent, rgba(23, 109, 145, 0.32), rgba(255, 177, 59, 0.2), transparent);
  transform: rotate(11deg);
}

.hero-figure img {
  width: 100%;
  display: block;
  border-radius: 28px;
  border: 1px solid rgba(255, 248, 236, 0.12);
  box-shadow: 0 44px 110px var(--shadow);
  mask-image: linear-gradient(90deg, transparent 0, black 9%, black 92%, transparent 100%);
}

.intro-panel,
.sky-panel,
.builder-loop,
.ai-cycle,
.section,
.method,
.contact {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.intro-panel {
  position: relative;
  padding: clamp(32px, 6vw, 64px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255, 248, 236, 0.1), rgba(255, 248, 236, 0.035)),
    radial-gradient(circle at 10% 20%, rgba(255, 177, 59, 0.13), transparent 34%);
}

.intro-panel p {
  margin: 0;
  max-width: 980px;
  color: var(--warm-canvas);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.6rem, 3.4vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.sky-panel {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: clamp(28px, 6vw, 72px);
  align-items: end;
  padding: clamp(64px, 9vw, 116px) 0 0;
}

.sky-panel p:last-child {
  margin: 0;
  color: rgba(255, 248, 236, 0.78);
  font-size: clamp(1.08rem, 1.8vw, 1.36rem);
}

.sky-panel h2 {
  position: relative;
}

.sky-panel h2::after {
  content: "";
  display: block;
  width: min(320px, 72%);
  height: 20px;
  margin-top: 28px;
  opacity: 0.82;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--brush-blue), var(--flame-amber), var(--burnt-orange), transparent);
  filter: blur(0.5px);
  transform: rotate(-2deg);
}

.section,
.method,
.contact {
  padding: clamp(72px, 10vw, 132px) 0 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.55fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 34px;
}

.collections-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.archive-card {
  position: relative;
  min-height: 300px;
  padding: 32px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(255, 248, 236, 0.078), rgba(255, 248, 236, 0.026)),
    radial-gradient(circle at 85% 8%, rgba(228, 87, 30, 0.16), transparent 12rem);
}

.archive-card::after {
  content: "";
  position: absolute;
  inset: auto -30px 18px 24%;
  height: 36px;
  opacity: 0.5;
  background: linear-gradient(90deg, transparent, var(--burnt-orange), var(--flame-amber), transparent);
  transform: rotate(-12deg);
  filter: blur(1px);
}

.card-index {
  display: inline-flex;
  margin-bottom: 44px;
  color: var(--flame-amber);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.archive-card p,
.method-list p,
.pattern-rail p,
.form-note {
  color: rgba(255, 248, 236, 0.72);
}

.method {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(32px, 7vw, 86px);
}

.method-list {
  display: grid;
  gap: 18px;
}

.method-list p {
  margin: 0;
  padding: 0 0 18px;
  border-bottom: 1px solid var(--line);
}

.method-list strong {
  color: var(--soft-white);
}

.archive-strip {
  position: relative;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--line);
}

.principles-grid article {
  min-height: 250px;
  padding: 28px;
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 177, 59, 0.14), transparent 9rem),
    rgba(8, 35, 56, 0.74);
}

.principles-grid p {
  color: rgba(255, 248, 236, 0.72);
}

.builder-loop {
  padding: clamp(72px, 10vw, 132px) 0 0;
}

.loop-heading {
  max-width: 900px;
  margin: 0 auto 34px;
  text-align: center;
}

.loop-heading p:last-child {
  width: min(680px, 100%);
  margin: 22px auto 0;
  color: rgba(255, 248, 236, 0.74);
  font-size: clamp(1.02rem, 1.5vw, 1.22rem);
}

.ai-cycle {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(28px, 6vw, 72px);
  padding: clamp(72px, 10vw, 132px) 0 0;
}

.ai-cycle > div:first-child p:last-child {
  color: rgba(255, 248, 236, 0.76);
  font-size: clamp(1.04rem, 1.5vw, 1.22rem);
}

.ai-cycle-list {
  display: grid;
  gap: 14px;
}

.ai-cycle-list p {
  position: relative;
  margin: 0;
  padding: 20px 22px 20px 54px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 248, 236, 0.058);
  color: rgba(255, 248, 236, 0.72);
}

.ai-cycle-list p::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 28px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--flame-amber), var(--burnt-orange));
  box-shadow: 0 0 28px rgba(255, 177, 59, 0.38);
}

.ai-cycle-list strong {
  color: var(--soft-white);
}

.loop-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: loop;
}

.loop-steps::before {
  content: "";
  position: absolute;
  left: 4%;
  right: 4%;
  top: 42px;
  height: 16px;
  opacity: 0.72;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brush-blue), var(--flame-amber), var(--burnt-orange), var(--brush-blue));
  filter: blur(0.5px);
}

.loop-steps li {
  counter-increment: loop;
  position: relative;
  min-height: 218px;
  padding: 92px 20px 22px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(255, 248, 236, 0.084), rgba(255, 248, 236, 0.028)),
    radial-gradient(circle at 50% 0%, rgba(255, 177, 59, 0.13), transparent 8rem);
}

.loop-steps li::before {
  content: "0" counter(loop);
  position: absolute;
  top: 22px;
  left: 50%;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--ink);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--warm-canvas), var(--flame-amber) 52%, var(--burnt-orange));
  box-shadow: 0 0 32px rgba(255, 177, 59, 0.25);
  transform: translateX(-50%);
  z-index: 1;
  font-size: 0.88rem;
  letter-spacing: -0.02em;
}

.loop-steps strong,
.loop-steps span {
  display: block;
  text-align: center;
}

.loop-steps strong {
  color: var(--flame-amber);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.24rem;
}

.loop-steps span {
  margin-top: 10px;
  color: rgba(255, 248, 236, 0.7);
}

.pattern-rail {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: var(--line);
}

.pattern-rail p {
  margin: 0;
  padding: 24px 28px;
  background: rgba(8, 35, 56, 0.72);
}

.contact {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: clamp(28px, 6vw, 72px);
  padding-bottom: 96px;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 248, 236, 0.07);
}

label {
  display: grid;
  gap: 8px;
}

label span {
  color: var(--canvas-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  color: var(--soft-white);
  background: rgba(16, 24, 32, 0.58);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 15px;
  font: inherit;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(255, 177, 59, 0.62);
  border-color: transparent;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 32px clamp(18px, 5vw, 72px);
  color: rgba(255, 248, 236, 0.56);
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .hero,
  .method,
  .sky-panel,
  .ai-cycle,
  .contact,
  .section-heading {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-figure {
    order: -1;
  }

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

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

  .loop-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .loop-steps::before {
    display: none;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }

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

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

  .loop-steps {
    grid-template-columns: 1fr;
  }

  .loop-steps li {
    min-height: 0;
  }

  .archive-card {
    min-height: 240px;
  }

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .button,
  .archive-card {
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
  }

  .archive-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 177, 59, 0.46);
  }
}