/* ============================================================
   KENT & WALKER. Shared site styles
============================================================ */

:root {
  --bg:            #F3EFE6;
  --bg-soft:       #EDE8DB;
  --ink:           #12110F;
  --ink-soft:      #5A5852;
  --ink-quiet:     #8E8B80;
  --rule:          #D6D0C0;
  --rule-soft:     #E4DFD1;
  --accent:        #8A3624;
  --accent-soft:   #B86B56;

  --font-display:  'Instrument Serif', ui-serif, Georgia, serif;
  --font-body:     'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono:     'JetBrains Mono', ui-monospace, monospace;

  --measure:       42rem;
  --measure-wide:  58rem;
  --measure-form:  36rem;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--ink); color: var(--bg); }

a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms ease, opacity 180ms ease, border-color 180ms ease;
}

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

/* ============================================================
   NAV
============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 1.75rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  z-index: 100;
  background: rgba(243, 239, 230, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 300ms ease;
}
.nav.scrolled { border-bottom-color: var(--rule-soft); }

.wordmark {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.wordmark .amp {
  font-style: italic;
  font-size: 1.15em;
  color: var(--accent);
  padding: 0 0.12em;
  position: relative;
  top: 0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }

@media (max-width: 720px) {
  .nav { padding: 1.25rem 1.5rem; }
  .nav-links { gap: 1.25rem; font-size: 0.75rem; }
  .nav-links a:nth-child(3) { display: none; }
}

/* ============================================================
   LAYOUT PRIMITIVES
============================================================ */
section { padding: 7rem 2.5rem; position: relative; }
@media (max-width: 720px) { section { padding: 4.5rem 1.5rem; } }

.container      { max-width: var(--measure); margin: 0 auto; }
.container-wide { max-width: var(--measure-wide); margin: 0 auto; }
.container-form { max-width: var(--measure-form); margin: 0 auto; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  margin-bottom: 3rem;
  display: block;
}

/* ============================================================
   TYPOGRAPHY
============================================================ */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.02;
  color: var(--ink);
}

h1 {
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  line-height: 1.04;
  margin-bottom: 2rem;
}

h3 {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}

h1 .italic, h2 .italic, h3 .italic { font-style: italic; }
h1 .amp, h2 .amp { font-style: italic; color: var(--accent); }

p + p { margin-top: 1.2rem; }

.lead { font-size: 1.18rem; line-height: 1.55; color: var(--ink); }
.quiet { color: var(--ink-soft); }
.tiny { font-size: 0.85rem; color: var(--ink-soft); }

.pull {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  line-height: 1.25;
  color: var(--ink);
  letter-spacing: -0.02em;
  padding: 2.5rem 0;
  max-width: 42rem;
}

/* ============================================================
   CTA BUTTONS
============================================================ */
.cta-row {
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  padding: 1.05rem 1.75rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  border-radius: 0;
  cursor: pointer;
  transition: all 220ms cubic-bezier(0.2, 0.6, 0.2, 1);
  font-family: inherit;
}
.cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.cta .arrow { transition: transform 220ms cubic-bezier(0.2, 0.6, 0.2, 1); }
.cta:hover .arrow { transform: translateX(4px); }

.cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.2rem;
  transition: all 220ms ease;
}
.cta-ghost:hover { color: var(--accent); border-color: var(--accent); }
.cta-ghost .arrow { transition: transform 220ms ease; }
.cta-ghost:hover .arrow { transform: translateX(3px); }

/* ============================================================
   HERO
============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 10rem;
  padding-bottom: 6rem;
}
.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  margin-bottom: 3rem;
}
.hero h1 { max-width: 16ch; }
.hero-subhead {
  max-width: 36rem;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.5;
  color: var(--ink-soft);
  margin-top: 2.5rem;
}

/* ============================================================
   AUDIENCE SPLIT
============================================================ */
.split-intro {
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--ink-soft);
  margin-bottom: 5rem;
}
.split {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0 4rem;
  max-width: 70rem;
  margin: 0 auto;
}
.split-divider { background: var(--rule); width: 1px; }
.split-col { display: flex; flex-direction: column; }
.split-col .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  margin-bottom: 1.5rem;
}
.split-col h3 { font-size: clamp(1.6rem, 2.4vw, 2.1rem); margin-bottom: 1.5rem; }
.split-col p { color: var(--ink-soft); margin-bottom: 1.25rem; line-height: 1.6; }
.split-col .cta-ghost { margin-top: 1.25rem; align-self: flex-start; }

@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; gap: 3rem; }
  .split-divider { width: 100%; height: 1px; }
}

/* ============================================================
   PROBLEM
============================================================ */
.problem-intro {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink-soft);
  margin-bottom: 4rem;
}
.problem-block { margin-bottom: 3.5rem; }
.problem-block .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: block;
}
.problem-block p { font-size: 1.18rem; line-height: 1.55; }
.problem-block p + p { font-size: 1.05rem; color: var(--ink-soft); margin-top: 1rem; }
.problem-closer {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--rule);
}

/* ============================================================
   SERVICES
============================================================ */
.services-intro {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink-soft);
  margin-bottom: 5rem;
}
.tier { margin-bottom: 6rem; }
.tier-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--rule);
}
.tier-number {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-quiet);
  letter-spacing: 0.12em;
}
.tier-header h3 { margin: 0; font-size: 1.6rem; }
.tier-framing {
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 2.5rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
}
.service {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule-soft);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2.5rem;
}
.service:last-child { border-bottom: none; }
.service h4 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.service p { color: var(--ink-soft); font-size: 1rem; line-height: 1.6; }
.tier-note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-top: 2rem;
  padding-left: 2rem;
  border-left: 2px solid var(--accent);
}
@media (max-width: 720px) {
  .service { grid-template-columns: 1fr; gap: 0.6rem; }
}

/* ============================================================
   AUTHORITY
============================================================ */
.authority-body p {
  font-size: 1.12rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: 1.3rem;
}
.authority-stats {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 2rem 4rem;
}
.stat .n {
  font-family: var(--font-display);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--ink);
  display: block;
}
.stat .l {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink-quiet);
  margin-top: 0.5rem;
  display: block;
}

/* ============================================================
   APPROACH
============================================================ */
.approach-intro {
  font-size: 1.15rem;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 5rem;
  max-width: 40rem;
}
.principles { display: grid; gap: 3rem; }
.principle {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--rule-soft);
}
.principle:last-child { border-bottom: none; padding-bottom: 0; }
.principle .num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 3rem;
  line-height: 1;
  color: var(--accent);
}
.principle h3 { font-size: 1.7rem; margin-bottom: 0.75rem; }
.principle p { color: var(--ink-soft); font-size: 1.05rem; line-height: 1.6; }
@media (max-width: 720px) {
  .principle { grid-template-columns: 1fr; gap: 0.5rem; }
  .principle .num { font-size: 2.2rem; }
}

/* ============================================================
   DIFFERENTIATION
============================================================ */
.diff-intro {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--ink-soft);
  margin-bottom: 4rem;
}
.diff-block { padding: 2.25rem 0; border-top: 1px solid var(--rule); }
.diff-block:last-of-type { border-bottom: 1px solid var(--rule); }
.diff-q {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 1rem;
  letter-spacing: -0.015em;
}
.diff-a { color: var(--ink-soft); font-size: 1.05rem; line-height: 1.6; }
.diff-capstone {
  margin-top: 5rem;
  padding: 4rem 0;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.diff-capstone .italic { color: var(--accent); }

/* ============================================================
   SELECTIVITY
============================================================ */
.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0 3.5rem;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--rule);
}
.fit-grid .divider { background: var(--rule); }
.fit-col .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  margin-bottom: 2rem;
}
.fit-col.yes .label { color: var(--accent); }
.fit-col ul { list-style: none; }
.fit-col li {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rule-soft);
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.5;
  display: flex;
  gap: 0.75rem;
}
.fit-col li:last-child { border-bottom: none; }
.fit-col li::before {
  content: '';
  display: inline-block;
  width: 0.8rem;
  height: 0.8rem;
  margin-top: 0.45rem;
  flex-shrink: 0;
}
.fit-col.yes li::before { background: var(--accent); border-radius: 50%; }
.fit-col.no li::before { border: 1px solid var(--ink-quiet); border-radius: 50%; }
@media (max-width: 720px) {
  .fit-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .fit-grid .divider { display: none; }
}
.fit-closer {
  margin-top: 4rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--ink-soft);
  line-height: 1.4;
}

/* ============================================================
   FINAL CTA
============================================================ */
.final-cta { background: var(--ink); color: var(--bg); }
.final-cta .section-label { color: var(--ink-quiet); }
.final-cta h2 { color: var(--bg); }
.final-cta h2 .amp { color: var(--accent-soft); }
.final-cta .cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--ink-soft);
  margin-top: 4rem;
}
.cta-card {
  background: var(--ink);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 22rem;
  transition: background 280ms ease;
  cursor: pointer;
}
.cta-card:hover { background: #1C1A17; }
.cta-card .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-soft);
}
.cta-card h3 {
  color: var(--bg);
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  margin: 1.5rem 0 1rem;
}
.cta-card p { color: var(--ink-quiet); font-size: 1rem; line-height: 1.55; }
.cta-card .arrow-line {
  margin-top: 2rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--bg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 220ms ease;
}
.cta-card:hover .arrow-line { gap: 1rem; }
@media (max-width: 720px) {
  .final-cta .cta-grid { grid-template-columns: 1fr; }
}
.final-note {
  margin-top: 4rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--ink-quiet);
  letter-spacing: 0.01em;
}

/* ============================================================
   FOOTER
============================================================ */
footer {
  background: var(--ink);
  color: var(--ink-quiet);
  padding: 3rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  border-top: 1px solid #2A2822;
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}
footer .left { color: var(--bg); font-family: var(--font-display); font-size: 1rem; }
footer .left .amp { font-style: italic; color: var(--accent-soft); }
footer .center { font-family: var(--font-display); font-style: italic; font-size: 1rem; color: var(--bg); }
footer .right { display: flex; gap: 2rem; }
footer .right a:hover { color: var(--bg); }

@media (max-width: 720px) {
  footer { flex-direction: column; text-align: center; gap: 1rem; padding: 2rem 1.5rem; }
  footer .right { gap: 1.5rem; flex-wrap: wrap; justify-content: center; }
}

/* ============================================================
   FORM. /apply
============================================================ */
.page-hero {
  padding-top: 10rem;
  padding-bottom: 3rem;
}
.page-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 20ch;
  margin-bottom: 1.5rem;
}
.page-hero .sub {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 34rem;
  line-height: 1.55;
}

.form-wrap {
  padding: 3rem 2.5rem 7rem;
}
.apply-form {
  display: grid;
  gap: 2rem;
}
.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 640px) {
  .field-row { grid-template-columns: 1fr; gap: 2rem; }
}
.field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-quiet);
}
.field label .req { color: var(--accent); margin-left: 0.25rem; }
.field input,
.field select,
.field textarea {
  font-family: inherit;
  font-size: 1.05rem;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--ink);
  padding: 0.75rem 0;
  border-radius: 0;
  outline: none;
  appearance: none;
  transition: border-color 180ms ease;
}
.field textarea {
  resize: vertical;
  min-height: 7rem;
  line-height: 1.5;
  border: 1px solid var(--ink);
  padding: 0.75rem 1rem;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
}
.field select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%2312110F' stroke-width='1.5' fill='none'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.25rem center;
  padding-right: 1.5rem;
  cursor: pointer;
}
.field .hint {
  font-size: 0.85rem;
  color: var(--ink-quiet);
  margin-top: 0.25rem;
}
.form-submit-row {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.form-submit-row .tiny { flex: 1; min-width: 15rem; }

.hidden-field { display: none !important; }

/* Thank-you state */
.thanks {
  text-align: center;
  padding: 2rem 0 4rem;
}
.thanks h2 { margin-bottom: 1.5rem; }
.thanks p { color: var(--ink-soft); font-size: 1.15rem; max-width: 30rem; margin: 0 auto 2rem; }

/* ============================================================
   BOOK PAGE
============================================================ */
.book-wrap { padding: 2rem 2.5rem 7rem; }
.book-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  max-width: 72rem;
  margin: 0 auto;
}
@media (max-width: 960px) {
  .book-grid { grid-template-columns: 1fr; gap: 2rem; }
}
.book-aside h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
  margin-top: 2.5rem;
}
.book-aside h3:first-child { margin-top: 0; }
.book-aside p, .book-aside li { color: var(--ink-soft); font-size: 1rem; line-height: 1.6; }
.book-aside ul { list-style: none; margin-top: 0.5rem; }
.book-aside ul li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule-soft);
  display: flex;
  gap: 0.75rem;
}
.book-aside ul li:last-child { border-bottom: none; }
.book-aside ul li::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: 50%;
  margin-top: 0.55rem;
  flex-shrink: 0;
}

.cal-embed {
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  min-height: 640px;
  position: relative;
}
.cal-embed-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.5;
}

/* ============================================================
   LEGAL PAGES (privacy / terms)
============================================================ */
.legal-wrap { padding: 3rem 2.5rem 7rem; }
.legal-wrap h2 {
  font-size: 1.75rem;
  margin-top: 3.5rem;
  margin-bottom: 1rem;
}
.legal-wrap h2:first-of-type { margin-top: 0; }
.legal-wrap p, .legal-wrap li {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}
.legal-wrap ul { padding-left: 1.5rem; margin-bottom: 1rem; }
.legal-wrap ul li { list-style: disc; }
.legal-wrap .last-updated {
  color: var(--ink-quiet);
  font-size: 0.9rem;
  margin-bottom: 3rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ============================================================
   404
============================================================ */
.not-found {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 2.5rem;
  max-width: var(--measure);
  margin: 0 auto;
}
.not-found .num {
  font-family: var(--font-display);
  font-size: clamp(8rem, 22vw, 16rem);
  line-height: 0.9;
  color: var(--ink);
  letter-spacing: -0.04em;
  margin-bottom: 0;
}
.not-found .num .italic { color: var(--accent); font-style: italic; }
.not-found p {
  font-size: 1.3rem;
  color: var(--ink-soft);
  line-height: 1.5;
  max-width: 30rem;
  margin: 2rem 0;
}

/* ============================================================
   SCROLL ANIMATIONS
============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms ease-out, transform 700ms cubic-bezier(0.2, 0.6, 0.2, 1);
}
.fade-up.in { opacity: 1; transform: translateY(0); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .fade-up { opacity: 1; transform: none; }
}