:root {
  --ink: #151515;
  --paper: #fffdf8;
  --soft-paper: #f8f2e8;
  --muted: #575757;
  --cyan: #02a8ba;
  --red: #f03d32;
  --yellow: #f4bd15;
  --green: #78c928;
  --blue: #1265bd;
  --magenta: #df168d;
  --line: rgba(21, 21, 21, 0.14);
  --shadow: 0 18px 40px rgba(21, 21, 21, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background:
    linear-gradient(90deg, rgba(2, 168, 186, 0.12), transparent 24%),
    linear-gradient(135deg, rgba(244, 189, 21, 0.18), transparent 38%),
    linear-gradient(225deg, rgba(223, 22, 141, 0.12), transparent 32%),
    var(--soft-paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
}

a {
  color: inherit;
}

.hero,
main {
  margin: 0 auto;
  max-width: 1180px;
}

.hero {
  padding: 20px 18px 0;
}

.top-nav {
  align-items: center;
  background: var(--ink);
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
}

.top-nav a {
  color: var(--paper);
  font-size: 0.84rem;
  font-weight: 800;
  padding: 12px 14px;
  text-decoration: none;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  background: var(--blue);
  outline: 0;
}

.hero-copy {
  background:
    linear-gradient(90deg, rgba(2, 168, 186, 0.9), rgba(240, 61, 50, 0.88) 28%, rgba(244, 189, 21, 0.88) 48%, rgba(120, 201, 40, 0.86) 67%, rgba(18, 101, 189, 0.88) 84%, rgba(223, 22, 141, 0.9)),
    var(--ink);
  color: var(--paper);
  padding: clamp(34px, 7vw, 78px);
}

.hero-copy h1 {
  color: var(--paper);
  font-size: clamp(3rem, 9vw, 7.2rem);
  line-height: 0.9;
  margin: 0 0 18px;
  text-shadow: 0 5px 18px rgba(0, 0, 0, 0.24);
}

.hero-copy p {
  color: var(--paper);
  max-width: 760px;
}

main {
  padding: 22px 18px 70px;
}

.eyebrow,
.week,
.map-tile span {
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--blue);
  margin: 0 0 8px;
}

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

h2 {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1;
  margin-bottom: 16px;
}

h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

p,
li {
  color: var(--muted);
  line-height: 1.65;
}

.studio-note,
.concept-map,
.concept,
.portfolio-brief {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 12px 28px rgba(21, 21, 21, 0.08);
  margin-bottom: 18px;
}

.studio-note,
.credit-note,
.concept-map,
.portfolio-brief {
  padding: clamp(22px, 4vw, 36px);
}

.studio-note-copy p {
  margin-bottom: 0;
}

.credit-note {
  border-left: 4px solid var(--yellow);
}

.studio-note .credit-note {
  background: #fffaf0;
  box-shadow: none;
  margin: 14px 0 0;
  padding: 12px 14px;
}

.credit-note details {
  font-size: 0.9rem;
}

.credit-note summary {
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
  line-height: 1.4;
}

.credit-note p {
  font-size: 0.88rem;
  line-height: 1.5;
  margin-top: 10px;
}

.credit-note a {
  color: var(--blue);
  font-weight: 700;
}

.credit-note a:hover,
.credit-note a:focus-visible {
  color: var(--magenta);
}

.studio-note {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(220px, 0.85fr) minmax(280px, 1.15fr);
}

.section-heading {
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
  padding-bottom: 16px;
}

.map-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.map-tile {
  background: var(--paper);
  border: 2px solid currentColor;
  color: var(--ink);
  min-height: 92px;
  padding: 14px;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.map-tile:hover,
.map-tile:focus-visible {
  box-shadow: 0 12px 22px rgba(21, 21, 21, 0.16);
  outline: 0;
  transform: translateY(-3px) rotate(-1deg);
}

.map-tile span {
  display: block;
  margin-bottom: 16px;
}

.cyan { color: var(--cyan); }
.red { color: var(--red); }
.yellow { color: #a87900; }
.green { color: #4f9414; }
.blue { color: var(--blue); }
.magenta { color: var(--magenta); }

.concept {
  scroll-margin-top: 18px;
}

.concept-header {
  border-top: 14px solid var(--cyan);
  padding: clamp(22px, 4vw, 36px);
}

.concept:nth-of-type(5n + 1) .concept-header { border-top-color: var(--red); }
.concept:nth-of-type(5n + 2) .concept-header { border-top-color: var(--yellow); }
.concept:nth-of-type(5n + 3) .concept-header { border-top-color: var(--green); }
.concept:nth-of-type(5n + 4) .concept-header { border-top-color: var(--blue); }
.concept:nth-of-type(5n + 5) .concept-header { border-top-color: var(--magenta); }

.week {
  color: var(--magenta);
  margin-bottom: 8px;
}

.concept-body {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 0.62fr) minmax(280px, 1fr);
  padding: clamp(18px, 3vw, 28px);
}

iframe {
  aspect-ratio: 16 / 9;
  border: 0;
  display: block;
  height: auto;
  width: 100%;
}

.visual-example {
  align-items: center;
  background: #f3eadc;
  border: 1px solid var(--line);
  display: flex;
  justify-content: center;
  min-height: 220px;
  overflow: hidden;
  padding: 20px;
  position: relative;
}

.concept-copy {
  display: grid;
  gap: 12px;
}

.concept-copy p {
  margin-bottom: 4px;
}

.design-purpose {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: white;
  flex-direction: column;
  gap: 10px;
  text-align: center;
}

.design-purpose strong {
  font-size: 1.55rem;
}

.design-purpose em {
  font-style: normal;
  opacity: 0.82;
}

.lines i {
  background: var(--ink);
  display: block;
  height: 5px;
  position: absolute;
  width: 80%;
}

.lines i:nth-child(1) { transform: rotate(0deg); }
.lines i:nth-child(2) { transform: rotate(28deg); }
.lines i:nth-child(3) { transform: rotate(-34deg); width: 58%; }
.lines i:nth-child(4) { height: 70%; width: 5px; }

.color-wheel {
  background: var(--ink);
  gap: 8px;
}

.color-wheel b {
  display: block;
  height: 82px;
  width: 28px;
}

.color-wheel b:nth-child(1) { background: var(--cyan); }
.color-wheel b:nth-child(2) { background: var(--red); }
.color-wheel b:nth-child(3) { background: var(--yellow); }
.color-wheel b:nth-child(4) { background: var(--green); }
.color-wheel b:nth-child(5) { background: var(--blue); }
.color-wheel b:nth-child(6) { background: var(--magenta); }

.shapes {
  gap: 14px;
}

.shapes b {
  background: var(--blue);
  display: block;
  height: 58px;
  width: 58px;
}

.shapes b:nth-child(2) {
  background: var(--red);
  border-radius: 50%;
}

.shapes b:nth-child(3) {
  background: var(--yellow);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.shapes b:nth-child(4) {
  background: var(--green);
  transform: rotate(45deg);
}

.texture {
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 0, 0, 0.22) 0 2px, transparent 3px),
    linear-gradient(135deg, #fff, #d6c7b1);
  background-size: 18px 18px, auto;
  gap: 12px;
}

.texture span {
  background: rgba(21, 21, 21, 0.7);
  display: block;
  height: 120px;
  opacity: 0.8;
  width: 18px;
}

.texture span:nth-child(2) { opacity: 0.48; transform: rotate(8deg); }
.texture span:nth-child(3) { opacity: 0.25; transform: rotate(-10deg); }

.space {
  background: var(--paper);
  justify-content: flex-end;
}

.space b {
  background: var(--magenta);
  display: block;
  height: 56px;
  margin-right: 24px;
  width: 56px;
}

.form b {
  background: radial-gradient(circle at 30% 24%, #ffffff 0 8%, #78c928 22%, #1265bd 68%, #151515 100%);
  border-radius: 50%;
  box-shadow: 18px 26px 28px rgba(21, 21, 21, 0.28);
  display: block;
  height: 116px;
  width: 116px;
}

.typography {
  align-items: flex-start;
  flex-direction: column;
}

.typography span {
  color: var(--red);
  font-family: Georgia, serif;
  font-size: 5rem;
  font-weight: 900;
  line-height: 0.85;
}

.typography strong {
  font-size: 1.4rem;
}

.contrast {
  background: var(--ink);
  color: white;
  gap: 16px;
}

.contrast b {
  font-size: 4rem;
}

.contrast span {
  color: var(--yellow);
  font-size: 1rem;
}

.hierarchy {
  align-items: flex-start;
  flex-direction: column;
}

.hierarchy b {
  background: var(--red);
  color: white;
  font-size: 3rem;
  padding: 6px 18px;
}

.hierarchy strong { font-size: 1.55rem; }
.hierarchy small { color: var(--muted); }

.alignment {
  align-items: flex-start;
  flex-direction: column;
  gap: 12px;
}

.alignment::before {
  background: var(--red);
  content: "";
  height: 82%;
  left: 54px;
  position: absolute;
  top: 9%;
  width: 3px;
}

.alignment span {
  background: var(--blue);
  display: block;
  height: 22px;
}

.alignment span:nth-child(1) { margin-left: 36px; width: 126px; }
.alignment span:nth-child(2) { margin-left: 36px; width: 76px; }
.alignment span:nth-child(3) { margin-left: 36px; width: 154px; }
.alignment span:nth-child(4) { margin-left: 36px; width: 104px; }

.balance {
  justify-content: space-between;
}

.balance b,
.balance strong {
  background: var(--blue);
  border-radius: 50%;
  display: block;
  height: 70px;
  width: 70px;
}

.balance span {
  background: var(--ink);
  display: block;
  height: 4px;
  width: 34%;
}

.balance strong {
  background: var(--magenta);
  height: 46px;
  width: 46px;
}

.proximity {
  align-content: center;
  display: grid;
  gap: 8px 40px;
  grid-template-columns: repeat(5, 28px);
}

.proximity b,
.proximity span {
  background: var(--green);
  border-radius: 50%;
  display: block;
  height: 28px;
  width: 28px;
}

.proximity span {
  background: var(--red);
}

.repetition {
  gap: 10px;
}

.repetition span {
  background: var(--cyan);
  display: block;
  height: 84px;
  width: 20px;
}

.repetition span:nth-child(4) {
  background: var(--magenta);
  height: 124px;
}

.simplicity b {
  background: var(--ink);
  display: block;
  height: 86px;
  width: 86px;
}

.function {
  flex-wrap: wrap;
  gap: 10px;
}

.function span {
  background: var(--paper);
  border: 2px solid var(--ink);
  font-weight: 800;
  padding: 10px 12px;
}

.function b {
  background: var(--yellow);
  display: block;
  height: 4px;
  width: 30px;
}

.brief-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.brief-grid div {
  border: 1px solid var(--line);
  padding: 18px;
}

@media (max-width: 980px) {
  .concept-body,
  .studio-note {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .map-grid,
  .brief-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 28px 20px;
  }
}