/* =========================================================================
   VELLUM WRITING FOUNDATION — site.css
   Palette is sampled from the logo: ink navy + quill blue on cool bond paper.
   ========================================================================= */

:root {
  --ink:        #0E1E3C;   /* logo navy, deepened for text */
  --ink-soft:   #1C3560;
  --quill:      #7CA6D8;   /* logo feather blue */
  --quill-deep: #4C7CB6;
  --wash:       #DCE7F4;   /* palest feather tint */
  --paper:      #F4F7FB;   /* cool bond paper */
  --paper-pure: #FFFFFF;
  --rule:       rgba(14, 30, 60, 0.14);

  --display: "Bodoni Moda", "Didot", "Times New Roman", serif;
  --body:    "Spectral", Georgia, "Times New Roman", serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --gutter: clamp(1.25rem, 5vw, 5.5rem);
  --measure: 62ch;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.65;
  font-feature-settings: "liga" 1, "kern" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

::selection { background: var(--quill); color: #fff; }

:focus-visible {
  outline: 2px solid var(--quill-deep);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- type ---------------------------------------------------------- */

h1, h2, h3 { font-family: var(--display); font-weight: 500; line-height: 1.02; margin: 0; letter-spacing: -0.015em; }

.display-xl { font-size: clamp(2.6rem, 8.2vw, 7.2rem); }
.display-l  { font-size: clamp(2.1rem, 5.4vw, 4.4rem); }
.display-m  { font-size: clamp(1.6rem, 3.2vw, 2.6rem); }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--quill-deep);
  margin: 0 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
  max-width: 8rem;
}

.lede { font-size: clamp(1.15rem, 1.05rem + 0.6vw, 1.5rem); line-height: 1.5; max-width: 36ch; }
p { max-width: var(--measure); }

/* ---------- shell --------------------------------------------------------- */

.wrap { padding-inline: var(--gutter); max-width: 1500px; margin-inline: auto; }

section { position: relative; }

.band { padding-block: clamp(5rem, 12vh, 10rem); }
.band--tight { padding-block: clamp(3.5rem, 8vh, 6rem); }

/* Manuscript folio marker down the left margin — encodes section order. */
.folio {
  position: absolute;
  left: calc(var(--gutter) * 0.32);
  top: clamp(5rem, 12vh, 10rem);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--quill-deep);
  writing-mode: vertical-rl;
  opacity: 0.75;
}
@media (max-width: 860px) { .folio { display: none; } }

/* ---------- nav ----------------------------------------------------------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--gutter);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.nav.is-stuck { border-bottom-color: var(--rule); }
.nav.is-inverted { background: color-mix(in srgb, var(--ink) 86%, transparent); color: var(--paper); }
.nav.is-inverted .nav__link { color: var(--wash); }
.nav.is-inverted .nav__cta { border-color: var(--wash); color: var(--paper); }

.nav__brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; }
.nav__brand img { width: 34px; height: 34px; object-fit: contain; }
.nav__brand span {
  font-family: var(--display);
  font-size: 1.02rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
@media (max-width: 560px) { .nav__brand span { display: none; } }

.nav__links { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.4rem); }
.nav__link {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  position: relative;
  padding-block: 0.35rem;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: currentColor;
  transition: right 0.45s var(--ease);
}
.nav__link:hover::after, .nav__link[aria-current="page"]::after { right: 0; }

.nav__cta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--ink);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}
.nav__cta:hover { background: var(--ink); color: var(--paper); }
.nav.is-inverted .nav__cta:hover { background: var(--paper); color: var(--ink); }

@media (max-width: 700px) {
  .nav__links .nav__link { display: none; }
  .nav__links .nav__link--keep { display: inline-block; }
}

/* ---------- buttons ------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), color 0.35s var(--ease);
}
.btn:hover { transform: translateY(-2px); background: var(--ink-soft); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--onink { border-color: var(--wash); background: transparent; color: var(--paper); }
.btn--onink:hover { background: var(--paper); color: var(--ink); }
.btn__arrow { transition: transform 0.35s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- hero ---------------------------------------------------------- */

.hero {
  min-height: 100svh;
  display: grid;
  align-content: center;
  padding-top: 6rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.hero__mark {
  width: clamp(74px, 9vw, 128px);
  margin-bottom: clamp(1.2rem, 3vh, 2.4rem);
  opacity: 0;
  animation: markIn 1.1s var(--ease) 0.15s forwards;
}
@keyframes markIn { from { opacity: 0; transform: translateY(18px) rotate(-4deg); } to { opacity: 1; transform: none; } }

.hero__name {
  font-family: var(--display);
  font-size: clamp(0.72rem, 1.4vw, 0.95rem);
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--quill-deep);
  margin: 0 0 clamp(1rem, 3vh, 2rem);
}

.hero__line { max-width: 16ch; }
.hero__line .word { display: inline-block; overflow: hidden; vertical-align: bottom; }
.hero__line .word > span {
  display: inline-block;
  transform: translateY(105%);
  animation: wordUp 1s var(--ease) forwards;
}
@keyframes wordUp { to { transform: none; } }

.hero__sub {
  margin-top: clamp(1.6rem, 4vh, 2.6rem);
  max-width: 42ch;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.85s forwards;
}
.hero__actions {
  margin-top: clamp(1.8rem, 4vh, 2.8rem);
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 1s forwards;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* The signature ink stroke: draws itself under the headline, then continues
   down the page as the manuscript rule. */
.inkline { position: absolute; pointer-events: none; }
.inkline path { fill: none; stroke: var(--quill); stroke-width: 2.2; stroke-linecap: round; }

.hero__ink {
  left: var(--gutter);
  bottom: clamp(4rem, 16vh, 11rem);
  width: min(52rem, 74vw);
  height: 90px;
  opacity: 0.9;
}

.hero__scroll {
  position: absolute;
  left: var(--gutter);
  bottom: 1.8rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--quill-deep);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.hero__scroll i {
  display: block;
  width: 1px;
  height: 34px;
  background: linear-gradient(var(--quill-deep), transparent);
  animation: drip 2.4s var(--ease) infinite;
  transform-origin: top;
}
@keyframes drip { 0% { transform: scaleY(0.2); opacity: 0; } 40% { opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- manuscript statement ------------------------------------------ */

.statement { border-top: 1px solid var(--rule); }
.statement__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
}
@media (min-width: 900px) { .statement__grid { grid-template-columns: 22ch minmax(0, 1fr); } }

.statement__body p {
  font-size: clamp(1.35rem, 1.1rem + 1.5vw, 2.5rem);
  font-family: var(--display);
  line-height: 1.24;
  max-width: 22ch;
  letter-spacing: -0.01em;
}
.statement__body p em { font-style: italic; color: var(--quill-deep); }

/* ---------- horizontal process rail --------------------------------------- */

.rail { background: var(--ink); color: var(--paper); }
.rail__pin { position: sticky; top: 0; height: 100svh; overflow: hidden; display: flex; align-items: center; }
.rail__track { display: flex; will-change: transform; }

.rail__intro,
.panel {
  flex: 0 0 auto;
  padding-inline: clamp(1.5rem, 5vw, 6rem);
}
.rail__intro { width: min(46rem, 88vw); }
.rail__intro .eyebrow { color: var(--quill); }
.rail__intro .eyebrow::after { background: rgba(220, 231, 244, 0.25); }
.rail__intro h2 { max-width: 14ch; }

.panel { width: min(34rem, 82vw); position: relative; }
.panel__num {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--quill);
  margin-bottom: 1.2rem;
  display: block;
}
.panel h3 { font-size: clamp(1.7rem, 2.6vw, 2.7rem); margin-bottom: 1rem; }
.panel p { color: var(--wash); max-width: 40ch; }
.panel::before {
  content: "";
  position: absolute;
  left: 0; top: 0.35rem;
  width: 1px; height: calc(100% - 0.7rem);
  background: rgba(124, 166, 216, 0.35);
}

.rail__progress {
  position: absolute;
  left: clamp(1.5rem, 5vw, 6rem);
  right: clamp(1.5rem, 5vw, 6rem);
  bottom: clamp(2rem, 6vh, 4rem);
  height: 1px;
  background: rgba(220, 231, 244, 0.2);
}
.rail__progress i { display: block; height: 100%; width: 0; background: var(--quill); }

/* Mobile: rail becomes a plain stack (no horizontal scroll on touch). */
@media (max-width: 760px), (prefers-reduced-motion: reduce) {
  .rail__pin { position: static; height: auto; padding-block: clamp(3rem, 9vh, 6rem); }
  .rail__track { display: block; transform: none !important; }
  .rail__intro, .panel { width: auto; padding-inline: var(--gutter); margin-bottom: 3rem; }
  .rail__progress { display: none; }
}

/* ---------- stats --------------------------------------------------------- */

.proof__grid { display: grid; gap: clamp(2rem, 5vw, 4rem); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 980px) { .proof__grid { grid-template-columns: 1.1fr 0.9fr; align-items: start; } }

.stats { display: grid; gap: 1.6rem; margin-top: 2rem; }
.stat { border-top: 1px solid var(--rule); padding-top: 1rem; display: grid; gap: 0.15rem; }
.stat b { font-family: var(--display); font-size: clamp(2.6rem, 5vw, 4.2rem); font-weight: 500; line-height: 1; }
.stat span { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--quill-deep); }

/* ---------- closing ------------------------------------------------------- */

.closing { background: var(--ink); color: var(--paper); text-align: left; overflow: hidden; }
.closing h2 { max-width: 18ch; }
.closing .inkline path { stroke: var(--quill); }
.closing__ink { left: 0; bottom: -10px; width: 100%; height: 120px; opacity: 0.55; }

/* ---------- footer -------------------------------------------------------- */

.foot { background: var(--ink); color: var(--wash); padding-block: 3rem 2rem; }
.foot a { color: var(--wash); }
.foot__grid { display: grid; gap: 2rem; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 820px) { .foot__grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.foot h4 { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--quill); margin: 0 0 0.9rem; font-weight: 400; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.foot__brand { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.9rem; }
.foot__brand img { width: 30px; filter: brightness(0) invert(1); opacity: 0.9; }
.foot__brand span { font-family: var(--display); letter-spacing: 0.16em; text-transform: uppercase; font-size: 0.95rem; color: var(--paper); }
.foot__base { margin-top: 2.5rem; padding-top: 1.2rem; border-top: 1px solid rgba(220, 231, 244, 0.16); display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; }

/* ---------- interior pages ------------------------------------------------ */

.page-head { padding-top: clamp(8rem, 18vh, 12rem); padding-bottom: clamp(2rem, 6vh, 4rem); }
.page-head h1 { max-width: 18ch; }
.page-head .lede { margin-top: 1.6rem; }

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

.split { display: grid; gap: clamp(1.6rem, 4vw, 4rem); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .split { grid-template-columns: 20ch minmax(0, 1fr); } }

/* map — real geography, drawn as ink on the page */
.map { margin-top: 2.5rem; background: var(--paper-pure); border: 1px solid var(--rule); border-radius: 4px; padding: clamp(1rem, 3vw, 2.5rem); }
.map svg { width: 100%; height: auto; overflow: visible; }

.usmap__state {
  fill: #E7ECF3;
  stroke: var(--paper-pure);
  stroke-width: 1;
  stroke-linejoin: round;
  transition: fill 0.45s var(--ease);
}
.usmap__state.is-soon   { fill: var(--wash); }
.usmap__state.is-active { fill: var(--quill); }

/* the lit states carry an ink edge so they read as deliberate, not coloured-in */
.usmap.is-drawn .usmap__state.is-active,
.usmap.is-drawn .usmap__state.is-soon { stroke: var(--ink); stroke-width: 1.3; }

.usmap__state:hover           { fill: #D8E0EA; cursor: default; }
.usmap__state.is-soon:hover   { fill: #C3D6EC; }
.usmap__state.is-active:hover { fill: var(--quill-deep); }

.usmap__mark { opacity: 0; transition: opacity 0.6s var(--ease); }
.usmap.is-drawn .usmap__mark { opacity: 1; transition-delay: calc(0.35s + var(--i) * 0.12s); }

.usmap__dot { fill: var(--ink); }
.usmap__mark.is-soon .usmap__dot { fill: var(--paper-pure); stroke: var(--quill-deep); stroke-width: 2; }

.usmap__leader { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 2 3; opacity: 0.45; }

.usmap__label, .usmap__halo {
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.usmap__halo { fill: none; stroke: var(--paper-pure); stroke-width: 6px; stroke-linejoin: round; }
.usmap__label { fill: var(--ink); }
.usmap__mark.is-soon .usmap__label { fill: var(--quill-deep); }
@media (max-width: 620px) { .usmap__label, .usmap__halo { font-size: 22px; } }

.map__legend { display: flex; flex-wrap: wrap; gap: 1.6rem; margin-top: 1.4rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.map__legend i { display: inline-block; width: 14px; height: 14px; border-radius: 3px; margin-right: 0.5rem; vertical-align: -2px; border: 1px solid var(--rule); }
.map__count { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--quill-deep); margin-top: 1rem; }
.map__tip { position: fixed; z-index: 40; pointer-events: none; background: var(--ink); color: var(--paper); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; padding: 0.35rem 0.6rem; border-radius: 3px; opacity: 0; transform: translate(-50%, -140%); transition: opacity 0.2s; white-space: nowrap; }

@media (prefers-reduced-motion: reduce) { .usmap__mark { opacity: 1; transition: none; } }

/* program */
.pcard { border: 1px solid var(--rule); border-radius: 4px; background: var(--paper-pure); padding: clamp(1.4rem, 3vw, 2.6rem); }
.pmeta { display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; margin-top: 2rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.pmeta div { background: var(--paper-pure); padding: 1.1rem 1.2rem; }
.pmeta dt { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--quill-deep); margin-bottom: 0.35rem; }
.pmeta dd { margin: 0; font-size: 1rem; }

.weeks { margin-top: clamp(2.5rem, 6vh, 4rem); border-top: 1px solid var(--rule); }
.week { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: clamp(1rem, 3vw, 2.5rem); padding-block: 1.5rem; border-bottom: 1px solid var(--rule); align-items: start; }
.week__n { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; color: var(--quill-deep); padding-top: 0.45rem; }
.week h3 { font-size: clamp(1.25rem, 2vw, 1.7rem); margin-bottom: 0.35rem; }
.week p { color: var(--ink-soft); margin: 0; }

/* contact */
.contact-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
.contact-list li { border-bottom: 1px solid var(--rule); }
.contact-list a, .contact-list span {
  display: grid; gap: 0.3rem; padding-block: 1.3rem; text-decoration: none;
  grid-template-columns: 9rem minmax(0, 1fr); align-items: baseline;
}
.contact-list dt, .contact-list .k { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--quill-deep); }
.contact-list .v { font-family: var(--display); font-size: clamp(1.2rem, 2.2vw, 1.7rem); }
@media (max-width: 620px) { .contact-list a, .contact-list span { grid-template-columns: 1fr; } }

.field { display: grid; gap: 0.4rem; margin-bottom: 1.1rem; }
.field label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--quill-deep); }
.field input, .field textarea, .field select {
  font-family: var(--body); font-size: 1rem; color: var(--ink);
  background: var(--paper-pure); border: 1px solid var(--rule); border-radius: 3px;
  padding: 0.8rem 0.9rem; width: 100%;
}
.field textarea { min-height: 9rem; resize: vertical; }
.form-note { font-size: 0.9rem; color: var(--ink-soft); }
.form-status { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; margin-top: 0.8rem; min-height: 1.2rem; }

/* ---------- scroll reveals ------------------------------------------------ */

[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-delay: 0ms !important; transition-duration: 0.001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .hero__line .word > span { transform: none; }
  .hero__sub, .hero__actions, .hero__mark { opacity: 1; }
}