:root {
  --ink: #182322;
  --ink-soft: #2c3a38;
  --paper: #fbfaf6;
  --surface: #ffffff;
  --mist: #e7f1ee;
  --line: #d8dfdc;
  --teal: #0a7c75;
  --teal-dark: #07534f;
  --amber: #d99531;
  --coral: #c85e4f;
  --plum: #604f71;
  --shadow: 0 18px 48px rgba(24, 35, 34, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 14px clamp(20px, 4vw, 56px);
  background: rgba(251, 250, 246, 0.9);
  border-bottom: 1px solid rgba(216, 223, 220, 0.84);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.02rem;
  font-weight: 750;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--teal), var(--plum));
  font-weight: 850;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 18px rgba(24, 35, 34, 0.06);
  font-weight: 700;
}

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  align-items: center;
  min-height: calc(100svh - 144px);
  overflow: hidden;
  color: #ffffff;
  background-image: linear-gradient(
      90deg,
      rgba(14, 24, 26, 0.95) 0%,
      rgba(14, 24, 26, 0.82) 38%,
      rgba(14, 24, 26, 0.26) 68%,
      rgba(14, 24, 26, 0.08) 100%
    ),
    url("assets/hero-gradschool-ai.png");
  background-position: center right;
  background-size: cover;
}

.hero::after {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 42%;
  background: linear-gradient(0deg, rgba(24, 35, 34, 0.58), transparent);
  content: "";
}

.hero-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0;
}

.eyebrow,
.section-kicker,
.output-label,
.plan-name {
  margin: 0 0 12px;
  color: var(--teal-dark);
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #9de2d6;
}

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

h1 {
  max-width: 800px;
  margin-bottom: 20px;
  font-size: 5.6rem;
  line-height: 0.95;
}

h2 {
  margin-bottom: 18px;
  font-size: 3rem;
  line-height: 1.04;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.18rem;
  line-height: 1.22;
}

.hero-copy {
  max-width: 610px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.22rem;
}

.hero-offer {
  max-width: 610px;
  margin-bottom: 24px;
  padding: 12px 14px;
  border-left: 4px solid #f8c36b;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.08);
  font-weight: 750;
}

.hero-offer strong {
  color: #ffffff;
}

.hero-actions,
.pricing-grid .button {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: var(--teal);
  box-shadow: 0 14px 28px rgba(10, 124, 117, 0.24);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--teal-dark);
}

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

.hero .button-secondary {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.34);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 640px;
  margin: 30px 0 0;
  padding: 0;
}

.hero-proof div {
  min-width: 150px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-proof dt {
  color: #f8c36b;
  font-size: 1.45rem;
  font-weight: 850;
}

.hero-proof dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
}

.signal-band {
  padding: 24px clamp(20px, 4vw, 56px);
  color: #ffffff;
  background: linear-gradient(90deg, var(--teal-dark), var(--plum));
}

.signal-band p {
  max-width: 1120px;
  margin: 0 auto;
  font-size: 1.04rem;
  font-weight: 650;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-strip div {
  display: grid;
  gap: 4px;
  padding: 22px clamp(18px, 3vw, 34px);
  background: #ffffff;
}

.trust-strip strong {
  color: var(--teal-dark);
  font-size: 0.98rem;
}

.trust-strip span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.language-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1fr);
  gap: 44px;
  align-items: start;
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.language-grid article {
  min-height: 220px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.language-grid span {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--coral);
  font-size: 0.88rem;
  font-weight: 850;
  text-transform: uppercase;
}

.section {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0;
}

.section-split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 62px;
  align-items: start;
}

.section-lead p,
.language-copy p,
.language-grid p,
.planner-copy p,
.waitlist-section p,
.form-note,
.talent-copy p,
.talent-points p,
.faq-list p,
.method-grid p,
.feature-row p,
.deliverables-heading p,
.deliverables-grid p,
.expert-copy p,
.ethics-grid li,
.workflow-rail span,
.plan-note {
  color: var(--ink-soft);
}

.section-lead {
  grid-column: 1;
}

.feature-stack {
  grid-column: 2;
  display: grid;
  gap: 12px;
}

.feature-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.feature-row:first-child {
  border-top: 1px solid var(--line);
}

.feature-index {
  color: var(--coral);
  font-weight: 850;
}

.planner-section {
  width: 100%;
  padding: 84px clamp(20px, 4vw, 56px);
  background: var(--mist);
}

.planner-section > * {
  width: min(1160px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.planner-copy {
  margin-bottom: 28px;
}

.planner-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.92fr) minmax(340px, 1.08fr);
  gap: 24px;
  align-items: stretch;
}

.planner-form,
.plan-output,
.price-card,
.method-grid article,
.waitlist-form,
.talent-form,
.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(24, 35, 34, 0.06);
}

.planner-form {
  display: grid;
  gap: 16px;
  padding: 22px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 750;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cbd5d1;
  border-radius: 8px;
  color: var(--ink);
  background: #ffffff;
}

input,
select {
  min-height: 48px;
  padding: 0 13px;
}

textarea {
  min-height: 126px;
  padding: 13px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(10, 124, 117, 0.18);
  border-color: var(--teal);
}

.planner-button {
  width: 100%;
  margin-top: 4px;
}

.plan-output {
  min-height: 360px;
  padding: 28px;
}

.plan-output h3 {
  font-size: 1.8rem;
}

.plan-output ul {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.plan-output li {
  display: grid;
  gap: 3px;
  padding-left: 18px;
  border-left: 4px solid var(--amber);
}

.plan-output strong {
  color: var(--teal-dark);
}

.advisor-section {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(380px, 1.14fr);
  gap: 38px;
  align-items: start;
}

.advisor-copy p {
  color: var(--ink-soft);
}

.limit-note {
  display: inline-flex;
  margin-top: 12px;
  padding: 10px 12px;
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  color: var(--ink);
  background: #fff5df;
  font-weight: 800;
}

.advisor-console {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.advisor-messages {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 320px;
  max-height: 440px;
  overflow: auto;
  padding: 4px;
}

.advisor-message {
  width: min(100%, 620px);
  padding: 14px 16px;
  border-radius: 8px;
  background: var(--mist);
}

.advisor-message p {
  margin: 6px 0 0;
}

.advisor-message-user {
  justify-self: end;
  color: #ffffff;
  background: var(--teal-dark);
}

.advisor-message-model {
  justify-self: start;
}

.prompt-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.prompt-row button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  background: #ffffff;
  cursor: pointer;
  font-weight: 750;
}

.prompt-row button:hover,
.prompt-row button:focus-visible {
  border-color: var(--teal);
  color: var(--teal-dark);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.64;
  transform: none;
}

.advisor-form {
  display: grid;
  gap: 12px;
}

.advisor-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
}

.advisor-actions p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.method-section {
  width: 100%;
  padding: 88px clamp(20px, 4vw, 56px);
  background: #ffffff;
}

.method-section > * {
  width: min(1160px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.method-grid article {
  padding: 22px;
  box-shadow: none;
}

.method-grid span,
.deliverables-grid span {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--coral);
  font-size: 0.88rem;
  font-weight: 850;
}

.deliverables-heading {
  max-width: 760px;
}

.deliverables-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.deliverables-grid article {
  min-height: 270px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(24, 35, 34, 0.06);
}

.sample-section {
  padding-top: 28px;
}

.sample-heading {
  max-width: 780px;
}

.sample-heading p,
.sample-summary p,
.sample-note p {
  color: var(--ink-soft);
}

.sample-map {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.sample-summary,
.sample-note {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.sample-label {
  margin-bottom: 8px;
  color: var(--coral);
  font-size: 0.88rem;
  font-weight: 850;
  text-transform: uppercase;
}

.sample-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.sample-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.sample-table th,
.sample-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.sample-table th {
  color: var(--teal-dark);
  background: #f7fbfa;
  font-size: 0.9rem;
}

.sample-table tr:last-child td {
  border-bottom: 0;
}

.sample-note {
  border-left: 4px solid var(--amber);
}

.expert-section {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(380px, 1.2fr);
  gap: 48px;
  align-items: start;
  padding: 84px clamp(20px, 4vw, 56px);
  color: #ffffff;
  background: var(--ink);
}

.expert-section > * {
  width: min(1160px, 100%);
}

.expert-copy {
  justify-self: end;
}

.expert-copy .section-kicker {
  color: #9de2d6;
}

.expert-copy p,
.workflow-rail span {
  color: rgba(255, 255, 255, 0.76);
}

.workflow-rail {
  display: grid;
  gap: 12px;
  justify-self: start;
}

.workflow-rail div {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.workflow-rail strong {
  color: #f8c36b;
}

.ethics-section {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(420px, 1.25fr);
  gap: 46px;
  align-items: start;
}

.ethics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.ethics-grid article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.ethics-grid ul {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding-left: 20px;
}

.talent-section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(340px, 0.82fr);
  gap: 48px;
  align-items: start;
  padding-top: 52px;
  border-top: 1px solid var(--line);
}

.talent-points {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.talent-points article {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.talent-points span {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--teal-dark);
  font-size: 0.88rem;
  font-weight: 850;
  text-transform: uppercase;
}

.talent-form {
  display: grid;
  gap: 16px;
  padding: 22px;
}

.pricing-heading {
  max-width: 760px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.price-card {
  display: flex;
  flex-direction: column;
  min-height: 430px;
  padding: 24px;
}

.featured-price {
  border-color: rgba(10, 124, 117, 0.46);
  box-shadow: var(--shadow);
}

.price {
  margin-bottom: 8px;
  font-size: 2.6rem;
  line-height: 1;
  font-weight: 850;
}

.price span {
  color: var(--ink-soft);
  font-size: 1rem;
  font-weight: 750;
}

.price-card ul {
  display: grid;
  gap: 11px;
  margin: 22px 0 28px;
  padding-left: 20px;
  color: var(--ink-soft);
}

.price-card .button {
  margin-top: auto;
}

.waitlist-section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(340px, 0.72fr);
  gap: 48px;
  align-items: start;
  padding-top: 52px;
  border-top: 1px solid var(--line);
}

.waitlist-form {
  display: grid;
  gap: 16px;
  padding: 22px;
}

.form-note {
  margin-top: 18px;
  padding: 12px 14px;
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  background: #fff5df;
  font-weight: 750;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.checkbox-field {
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7fbfa;
}

.checkbox-field input {
  width: 18px;
  min-height: 18px;
  margin-top: 3px;
}

.checkbox-field span {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 650;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--teal-dark);
  font-weight: 800;
}

.faq-section {
  padding-top: 44px;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 860px;
  margin-top: 26px;
}

.faq-list details {
  padding: 18px 20px;
  box-shadow: none;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 850;
}

.faq-list p {
  margin: 12px 0 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 32px clamp(20px, 4vw, 56px);
  color: rgba(255, 255, 255, 0.8);
  background: var(--ink);
}

.site-footer span:first-child {
  color: #ffffff;
  font-weight: 850;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    min-height: 76px;
  }

  .nav-links {
    display: none;
  }

  h1 {
    font-size: 4.1rem;
  }

  h2 {
    font-size: 2.35rem;
  }

  .section-split,
  .language-section,
  .planner-grid,
  .advisor-section,
  .expert-section,
  .ethics-section,
  .pricing-grid,
  .talent-section,
  .waitlist-section {
    grid-template-columns: 1fr;
  }

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

  .section-lead,
  .feature-stack {
    grid-column: auto;
  }

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

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

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

@media (max-width: 640px) {
  .site-header {
    gap: 12px;
    min-height: 68px;
    padding: 10px 16px;
  }

  .brand {
    font-size: 0.98rem;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 12px;
    font-size: 0.9rem;
  }

  .hero {
    min-height: calc(100svh - 122px);
    background-position: 64% center;
  }

  .hero-inner {
    width: min(100% - 32px, 1160px);
    padding: 34px 0;
  }

  h1 {
    font-size: 3.2rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-copy {
    font-size: 1.03rem;
  }

  .button {
    width: 100%;
  }

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

  .advisor-actions {
    grid-template-columns: 1fr;
  }

  .hero-proof div {
    min-width: 0;
    width: calc(50% - 5px);
  }

  .hero-proof div:last-child {
    width: 100%;
  }

  .section {
    width: min(100% - 32px, 1160px);
    padding: 64px 0;
  }

  .planner-section,
  .method-section,
  .expert-section {
    padding: 64px 16px;
  }

  .feature-row {
    grid-template-columns: 44px 1fr;
    gap: 12px;
  }

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

  .deliverables-grid,
  .ethics-grid {
    grid-template-columns: 1fr;
  }

  .language-grid article {
    min-height: auto;
  }

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

  .price-card {
    min-height: auto;
  }

  .plan-output {
    min-height: 300px;
    padding: 22px;
  }
}