/* ─────────────────────────────────────────────────────────────
   Vilto — private international journeys and overseas projects
   Palette: cool stone paper, blue-black ink, deep petrol, brass.
   Type:    Fraunces (display) / Instrument Sans (body) /
            IBM Plex Mono (file labels, numerals, coordinates)
   ───────────────────────────────────────────────────────────── */

:root {
  --paper:     #efefea;
  --paper-2:   #e5e6df;
  --ink:       #12171a;
  --ink-soft:  #3d4649;
  --muted:     #5c635f;  /* 5.3:1 on paper — the old #6e7671 was 3.9:1 */
  --petrol:    #1b3a3c;
  --petrol-2:  #143032;
  --brass:     #94773c;
  --brass-lit: #c9a961;
  --rule:      rgba(18, 23, 26, .15);
  --rule-2:    rgba(18, 23, 26, .30);
  --rule-inv:  rgba(239, 239, 234, .18);

  /* Text on the petrol ground. Nothing dimmer than --on-dark-4 (5.1:1) is
     used for text — below that it stops being readable. */
  --on-dark:   #efefea;
  --on-dark-2: rgba(239, 239, 234, .86);
  --on-dark-3: rgba(239, 239, 234, .72);
  --on-dark-4: rgba(239, 239, 234, .62);

  --display-font: "Fraunces", "Iowan Old Style", "Hoefler Text", Georgia, serif;

  --measure:   66ch;
  --shell:     1180px;
  --gutter:    clamp(20px, 5vw, 56px);
  --rail:      168px;

  --ease:      cubic-bezier(.22, .68, .28, 1);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Instrument Sans", system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.62;
  letter-spacing: -.003em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  overflow-wrap: break-word;
}

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

/* Spacing is set explicitly with .stack and .mt-* — never by default margins. */
p, h1, h2, h3, h4, ul, ol { margin: 0; }

a { color: inherit; }

::selection { background: var(--brass); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
  border-radius: 1px;
}

/* ── Layout primitives ─────────────────────────────────────── */

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

.band { padding-block: clamp(56px, 8vw, 108px); }
.band--tight { padding-block: clamp(40px, 5vw, 68px); }
/* Section rules line up with the text, not with the page edge. */
.band--rule { position: relative; }
.band--rule::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 1px;
  background: var(--rule);
}

/* Sections run full-bleed from the shell edge; the measure does the shaping. */
.spread > * + * { margin-top: clamp(20px, 3vw, 32px); }

.measure { max-width: var(--measure); }
.stack > * + * { margin-top: 1.1em; }

/* ── Type ──────────────────────────────────────────────────── */

.display {
  font-family: var(--display-font);
  font-weight: 600;
  font-optical-sizing: auto;
  letter-spacing: -.022em;
  line-height: 1.02;
  margin: 0;
}

.d-hero  { font-size: clamp(34px, 5.2vw, 64px); line-height: 1.0; }
.d-sect  { font-size: clamp(27px, 3.4vw, 41px); line-height: 1.08; }
.d-sub   { font-size: clamp(21px, 2.4vw, 28px); line-height: 1.18; }

.label {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}
.label--brass { color: var(--brass); }
.label--inv   { color: var(--on-dark-3); }

.lede {
  font-size: clamp(19px, 2.1vw, 23px);
  line-height: 1.5;
  letter-spacing: -.011em;
  color: var(--ink);
}

.body-lg { font-size: 18.5px; line-height: 1.6; }
.soft    { color: var(--ink-soft); }
.dim     { color: var(--muted); }

.note {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--muted);
}

/* Short declarative lines set as a stanza — Vilto's own cadence:
   "Less noise. Better judgment. The right people involved." */
.stanza {
  font-family: var(--display-font);
  font-weight: 500;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.28;
  letter-spacing: -.018em;
  margin: 0;
}
.stanza span { display: block; }
.stanza span + span { color: var(--muted); }
.stanza span + span + span { color: var(--brass); }

.stanza--inv { color: var(--on-dark); }
.stanza--inv span + span { color: var(--on-dark-2); }
.stanza--inv span + span + span { color: var(--brass-lit); }

.ulink {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--rule-2);
  transition: text-decoration-color .2s var(--ease);
}
.ulink:hover { text-decoration-color: currentColor; }

/* ── Header ────────────────────────────────────────────────── */

.masthead {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px) saturate(1.4);
  border-bottom: 1px solid var(--rule);
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 68px;
}

.wordmark {
  font-family: var(--display-font);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}
.wordmark::after {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--brass);
  transform: translateY(-1px);
}

.nav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 32px); }

.nav__link {
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -.008em;
  text-decoration: none;
  color: var(--ink-soft);
  padding-block: 4px;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.nav__link:hover { color: var(--ink); border-bottom-color: var(--rule-2); }
.nav__link[aria-current="page"] { color: var(--ink); border-bottom-color: var(--brass); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  margin-right: -10px;
  align-items: center; justify-content: center;
  background: none; border: 0; color: inherit; cursor: pointer;
}

.nav-drawer { display: none; }

@media (max-width: 940px) {
  .nav--desktop { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-drawer {
    display: block;
    border-top: 1px solid var(--rule);
    background: var(--paper);
  }
  .nav-drawer[hidden] { display: none; }
  .nav-drawer__list {
    display: flex; flex-direction: column; gap: 2px;
    padding-block: 14px 24px;
  }
  .nav-drawer .nav__link {
    font-size: 19px;
    font-family: var(--display-font);
    padding-block: 10px;
    border-bottom: 1px solid var(--rule);
  }
  .nav-drawer .btn { margin-top: 18px; }
}

/* ── Buttons ───────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid var(--petrol);
  background: var(--petrol);
  color: var(--paper);
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .25s var(--ease), transform .25s var(--ease), border-color .25s var(--ease);
}
.btn:hover { background: var(--petrol-2); border-color: var(--petrol-2); transform: translateY(-1px); }
.btn svg { transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-2);
}
.btn--ghost:hover { background: transparent; border-color: var(--ink); }

.btn--inv {
  background: var(--paper);
  color: var(--petrol);
  border-color: var(--paper);
}
.btn--inv:hover { background: #fff; border-color: #fff; }

.btn--ghost-inv {
  background: transparent;
  color: var(--paper);
  border-color: var(--rule-inv);
}
.btn--ghost-inv:hover { background: transparent; border-color: var(--paper); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ── Hero ──────────────────────────────────────────────────── */

/* Every page opens the same way: headline left, one paragraph and any
   actions right, both starting on the same line. */
.hero { padding-block: clamp(52px, 6.5vw, 92px) clamp(48px, 6vw, 80px); }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.hero__grid > * + * { padding-top: 6px; }

@media (max-width: 940px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__grid > * + * { padding-top: 0; }
}

/* ── Desk log — the signature element ──────────────────────── */

.log {
  background: var(--petrol);
  color: var(--paper);
}

.log__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule-inv);
}

.log__list { list-style: none; margin: 0; padding: 0; }

.log__row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
  padding-block: 15px;
  border-bottom: 1px solid var(--rule-inv);
  font-size: 15.5px;
}
@media (max-width: 760px) {
  .log__row { grid-template-columns: minmax(0, 1fr); gap: 7px; }
  .log__state { white-space: normal; }
}

.log__kind {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brass-lit);
}
.log__what { color: var(--on-dark); letter-spacing: -.006em; }
.log__what em { font-style: normal; color: var(--on-dark-3); }

.log__state {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--on-dark-3);
}
.log__state--no { color: var(--on-dark-4); }
.log__row--no .log__what { color: var(--on-dark-4); }

/* ── Service panels ────────────────────────────────────────── */

.duo {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border-block: 1px solid var(--rule);
}
@media (max-width: 860px) { .duo { grid-template-columns: minmax(0, 1fr); } }

.duo__panel {
  background: var(--paper);
  padding: clamp(28px, 3.6vw, 46px) clamp(22px, 3vw, 40px);
}
.duo__panel:hover { background: var(--paper-2); }
.duo__panel { transition: background-color .35s var(--ease); }


/* ── Lists ─────────────────────────────────────────────────── */

.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li {
  position: relative;
  padding-left: 22px;
  padding-block: 5px;
  font-size: 16.5px;
  color: var(--ink-soft);
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0; top: .82em;
  width: 9px; height: 1px;
  background: var(--brass);
}

.cols-2 { columns: 2; column-gap: clamp(24px, 4vw, 48px); }
.cols-2 li { break-inside: avoid; }
@media (max-width: 620px) { .cols-2 { columns: 1; } }

/* Roster — who we work with, as a set of hairline rows */
.roster { border-top: 1px solid var(--rule); }
.roster__row {
  padding-block: 16px;
  border-bottom: 1px solid var(--rule);
}
.roster__t {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -.008em;
}
.roster__d { display: block; font-size: 14.5px; color: var(--muted); margin-top: 2px; }

/* ── Steps (a real sequence — numbering earns its place here) ─ */

.steps { border-top: 1px solid var(--rule); }

.step {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  padding-block: clamp(28px, 3.6vw, 44px);
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 860px) { .step { grid-template-columns: minmax(0, 1fr); gap: 14px; } }

.step__n {
  font-family: var(--display-font);
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1;
  color: var(--brass);
  font-weight: 400;
}

/* ── Pull quote / stanza block ─────────────────────────────── */

.pull {
  border-left: 1px solid var(--brass);
  padding-left: clamp(20px, 3vw, 34px);
}

/* ── Petrol band ───────────────────────────────────────────── */

.inverse {
  background: var(--petrol);
  color: var(--paper);
}
/* Every dark ground gets the same overrides — .footer and .log included, or
   text tokens meant for paper end up on petrol. */
:is(.inverse, .footer, .log) .soft  { color: var(--on-dark-2); }
:is(.inverse, .footer, .log) .dim   { color: var(--on-dark-3); }
:is(.inverse, .footer, .log) .note  { color: var(--on-dark-3); }
:is(.inverse, .footer, .log) .label { color: var(--on-dark-3); }
:is(.inverse, .footer, .log) .ticks li { color: var(--on-dark-2); }
:is(.inverse, .footer, .log) .ticks li::before { background: var(--brass-lit); }
:is(.inverse, .footer, .log) .ulink { text-decoration-color: var(--rule-inv); }
:is(.inverse, .footer, .log) .roster,
:is(.inverse, .footer, .log) .roster__row { border-color: var(--rule-inv); }
:is(.inverse, .footer, .log) .roster__d { color: var(--on-dark-3); }
:is(.inverse, .footer, .log) hr, :is(.inverse, .footer, .log) .hair { border-color: var(--rule-inv); }

/* ── Standards / fine print box ────────────────────────────── */

.fineprint {
  border: 1px solid var(--rule);
  padding: clamp(22px, 3vw, 34px);
  background: var(--paper-2);
}
:is(.inverse, .footer, .log) .fineprint { border-color: var(--rule-inv); background: transparent; }

/* ── Form ──────────────────────────────────────────────────── */

.form { max-width: 720px; }

.fieldset {
  border: 0;
  margin: 0;
  padding: 0 0 clamp(30px, 4vw, 46px);
}
.fieldset + .fieldset { border-top: 1px solid var(--rule); padding-top: clamp(30px, 4vw, 46px); }

/* Section headings inside the form are real headings, not <legend>: legends
   interrupt the fieldset border and disturb the grid rows below them. */
.fieldset .display { margin-bottom: 22px; }

.field { margin-bottom: 22px; }
.field:last-child { margin-bottom: 0; }

.field__label {
  display: block;
  font-size: 14.5px;
  font-weight: 500;
  margin-bottom: 7px;
  letter-spacing: -.005em;
}
.field__hint {
  display: block;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 8px;
}

.input,
.select,
.textarea {
  width: 100%;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--rule-2);
  border-radius: 0;
  padding: 12px 14px;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
  appearance: none;
}
.textarea { min-height: 128px; resize: vertical; line-height: 1.55; }
.input::placeholder, .textarea::placeholder { color: var(--muted); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--ink-soft); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--petrol);
  background: rgba(255, 255, 255, .5);
  box-shadow: inset 0 0 0 1px var(--petrol);
}

.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='7' fill='none' stroke='%236e7671' stroke-width='1.4'%3E%3Cpath d='M1 1l4.5 4.5L10 1'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
@media (max-width: 620px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }

.choices { display: grid; gap: 8px; }
.choices--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 620px) { .choices--2 { grid-template-columns: minmax(0, 1fr); } }

.choice {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  font-size: 15.5px;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.choice:hover { border-color: var(--rule-2); background: rgba(255, 255, 255, .4); }
.choice input { margin: 3px 0 0; accent-color: var(--petrol); width: 15px; height: 15px; flex: none; }
.choice:has(input:checked) { border-color: var(--petrol); background: rgba(255, 255, 255, .55); }
.choice:has(input:focus-visible) { outline: 2px solid var(--brass); outline-offset: 2px; }

.form__status {
  margin-top: 20px;
  font-size: 15px;
  padding: 14px 16px;
  border: 1px solid var(--rule-2);
}
.form__status[hidden] { display: none; }
.form__status--ok { border-color: var(--petrol); background: rgba(27, 58, 60, .06); }
.form__status--err { border-color: var(--brass); background: rgba(148, 119, 60, .08); }

/* ── Footer ────────────────────────────────────────────────── */

.footer { background: var(--petrol); color: var(--paper); }

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(48px, 6vw, 84px);
}
@media (max-width: 860px) { .footer__top { grid-template-columns: minmax(0, 1fr); } }

.footer__nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; }
.footer__list { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 9px; }
.footer__list a {
  font-size: 15px;
  text-decoration: none;
  color: var(--on-dark-2);
  transition: color .2s var(--ease);
}
.footer__list a:hover { color: var(--paper); }

.footer__base {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  justify-content: space-between;
  padding-block: 22px;
  border-top: 1px solid var(--rule-inv);
}

/* ── Motion ────────────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ── Utilities ─────────────────────────────────────────────── */

.hair { border: 0; border-top: 1px solid var(--rule); margin: 0; }
.mt-0  { margin-top: 0; }
.mt-1  { margin-top: 10px; }
.mt-2  { margin-top: 18px; }
.mt-3  { margin-top: 26px; }
.mt-4  { margin-top: 38px; }
.mt-5  { margin-top: clamp(38px, 5vw, 62px); }
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: var(--gutter); top: 10px;
  z-index: 100;
  background: var(--petrol); color: var(--paper);
  padding: 10px 16px;
}