/* Corpora Aerial Service. Fresh build, flight-plan paper world.
   Containers: drafting corner ticks only, radius 0. Motion: drawn. */

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

html, body { overflow-x: clip; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--paper);
  /* E3 ambient ground: green nav-log grid at low opacity */
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
}

[id] { scroll-margin-top: calc(var(--head-h) + 16px); }

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

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

* { scrollbar-width: thin; scrollbar-color: var(--green) var(--paper-2); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--paper-2); }
::-webkit-scrollbar-thumb { background: var(--green); }

h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.14; margin: 0 0 var(--s2); }
h1 { font-size: clamp(30px, 3.4vw, 46px); }
h2 { font-size: clamp(24px, 2.6vw, 34px); }
h3 { font-size: clamp(18px, 1.6vw, 22px); }
p { margin: 0 0 var(--s2); max-width: var(--measure); }
.small { font-size: 13.5px; color: var(--ink-2); }

a { color: var(--green); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

:focus-visible { outline: 3px solid var(--yellow); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 90;
  background: var(--ink); color: var(--paper); padding: 12px 18px; font-family: var(--body);
}
.skip:focus { left: 8px; top: 8px; }

/* ============ header: A30 gauge chassis ============ */

.site-head {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  border-bottom: 2px solid var(--ink);
}
.head-in {
  display: flex; align-items: center; gap: var(--s2);
  min-height: var(--head-h);
  max-width: var(--wrap); margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px);
}
.gauge { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.gauge svg { display: block; }
.gauge .needle { transform-origin: 50% 50%; transform: rotate(97deg); }
html[data-anim] .gauge .needle { transform: rotate(0deg); }
html[data-anim] .gauge.swept .needle { transform: rotate(97deg); transition: transform 1400ms var(--draw-ease); }
.gauge-cap { font-size: 11px; letter-spacing: 0.08em; color: var(--ink-2); line-height: 1.3; text-transform: uppercase; }
.gauge-cap b { display: block; color: var(--ink); font-weight: 700; }

.site-id { margin-right: auto; min-width: 0; }
.site-id a {
  font-family: var(--body); font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; font-size: clamp(14px, 1.4vw, 17px);
  color: var(--ink); text-decoration: none; display: block;
}
.site-id .place { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2); }

.site-nav ul { list-style: none; display: flex; gap: clamp(12px, 2vw, 28px); margin: 0; padding: 0; }
.site-nav a {
  position: relative; display: inline-block; padding: 12px 2px;
  font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink); text-decoration: none;
}
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 8px; height: 2px;
  background: var(--yellow); transform: scaleX(0); transform-origin: left;
}
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); }
.site-nav a[aria-current="page"] { color: var(--green); }
.site-nav a[aria-current="page"]::after { transform: scaleX(1); background: var(--green); }
@media (prefers-reduced-motion: no-preference) {
  .site-nav a::after { transition: transform var(--t-fast) var(--draw-ease); }
}

.menu-btn {
  display: none; flex: 0 0 auto;
  min-width: 44px; min-height: 44px; padding: 8px 12px;
  font-family: var(--body); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  background: none; border: 2px solid var(--ink); color: var(--ink); cursor: pointer;
}
.menu-btn:active { transform: translateY(1px); }

@media (max-width: 820px) {
  .head-in { flex-wrap: wrap; padding-block: 8px; }
  .gauge-cap { display: none; }
  html.js .menu-btn { display: block; }
  html.js .site-nav { display: none; flex-basis: 100%; }
  html.js .site-nav.open { display: block; border-top: 1px solid var(--hairline); }
  html.js .site-nav.open ul { flex-direction: column; gap: 0; padding-block: 4px; }
  html.js .site-nav.open a { display: block; padding: 12px 4px; }
  html:not(.js) .site-nav { flex-basis: 100%; }
  html:not(.js) .site-nav ul { flex-wrap: wrap; gap: 4px 16px; padding-bottom: 8px; }
}

/* ============ hero: B11 letterbox ============ */

.letterbox { position: relative; border-top: 3px solid var(--ink); border-bottom: 3px solid var(--ink); }
.letterbox img { width: 100%; aspect-ratio: 21 / 9; max-height: 46vh; object-fit: cover; object-position: 50% 0; }
.letterbox .wipe {
  position: absolute; inset: 0; background: var(--paper); transform-origin: right;
  transform: scaleX(0); pointer-events: none;
}
html[data-anim] .letterbox .wipe { transform: scaleX(1); }
html[data-anim] .letterbox.shown .wipe { transform: scaleX(0); transition: transform 900ms var(--draw-ease) 150ms; }

.hero-copy { padding-block: var(--s4) var(--s5); }
.hero-copy h1 { max-width: 24ch; }
.answers {
  margin: var(--s3) 0 2px;
  font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2);
}
.bigphone {
  display: inline-block;
  font-family: var(--display); font-weight: 700;
  font-size: clamp(40px, 6.4vw, 78px); line-height: 1.05;
  color: var(--ink); text-decoration: none;
  border-bottom: 4px solid var(--yellow);
  padding-bottom: 4px;
}
.bigphone:hover { color: var(--green); border-bottom-color: var(--green); }
.bigphone:active { transform: translateY(1px); }

.arrowlinks { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s4); margin-top: var(--s3); padding: 0; list-style: none; }
.arrow {
  position: relative; display: inline-block; padding: 10px 0;
  font-size: 14px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--green); text-decoration: none; font-weight: 700;
}
.arrow::before { content: "\2192\00a0\00a0"; color: var(--ochre); }
.arrow::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 6px; height: 2px;
  background: var(--green); transform: scaleX(0); transform-origin: left;
}
.arrow:hover::after, .arrow:focus-visible::after { transform: scaleX(1); }
@media (prefers-reduced-motion: no-preference) {
  .arrow::after { transition: transform var(--t-fast) var(--draw-ease); }
}

/* ============ sections and the E3 caret ============ */

section { padding-block: clamp(var(--s5), 8vh, var(--s7)); }

.sec-head { margin-bottom: var(--s4); }
.sec-head .rule {
  position: relative; height: 2px; background: var(--ink);
  max-width: 320px; margin-top: var(--s2); overflow: visible;
}
.sec-head .rule::after {
  content: ""; position: absolute; top: -3px; left: 0; width: 14px; height: 8px;
  background: var(--yellow);
}
@media (prefers-reduced-motion: no-preference) {
  html[data-anim] .sec-head .rule::after { animation: caret-travel 8s var(--draw-ease) infinite; }
}
@keyframes caret-travel {
  0% { transform: translateX(0); }
  46% { transform: translateX(306px); }
  54% { transform: translateX(306px); }
  100% { transform: translateX(0); }
}
.band-dark .sec-head .rule { background: var(--paper); }

/* ============ D2 corner-tick containers ============ */

.tick-box {
  position: relative;
  padding: clamp(var(--s2), 3vw, var(--s4));
  --tick: var(--ink);
  background-image:
    linear-gradient(var(--tick), var(--tick)), linear-gradient(var(--tick), var(--tick)),
    linear-gradient(var(--tick), var(--tick)), linear-gradient(var(--tick), var(--tick)),
    linear-gradient(var(--tick), var(--tick)), linear-gradient(var(--tick), var(--tick)),
    linear-gradient(var(--tick), var(--tick)), linear-gradient(var(--tick), var(--tick));
  background-repeat: no-repeat;
  background-size: 18px 2px, 2px 18px, 18px 2px, 2px 18px, 18px 2px, 2px 18px, 18px 2px, 2px 18px;
  background-position: top left, top left, top right, top right, bottom left, bottom left, bottom right, bottom right;
}
.tick-box:hover { --tick: var(--green); background-size: 28px 2px, 2px 28px, 28px 2px, 2px 28px, 28px 2px, 2px 28px, 28px 2px, 2px 28px; }
.band-dark .tick-box { --tick: var(--paper); }
.band-dark .tick-box:hover { --tick: var(--yellow); }

figure.photo { margin: 0; }
figure.photo img { width: 100%; }
figure.photo figcaption {
  display: flex; gap: 10px; align-items: baseline;
  padding-top: 10px; font-size: 12.5px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-2);
}
figure.photo figcaption .fig-n { color: var(--ochre); font-weight: 700; }
.band-dark figure.photo figcaption { color: rgba(244, 243, 233, 0.75); }
.band-dark figure.photo figcaption .fig-n { color: var(--yellow); }

/* ============ drawn reveals (transform wipes, nothing fades) ============ */

.rv { position: relative; }
.rv .cover {
  position: absolute; inset: -2px; background: var(--paper);
  transform-origin: right; transform: scaleX(0); pointer-events: none; z-index: 5;
}
.band-dark .rv .cover { background: var(--ink); }
html[data-anim] .rv .cover { transform: scaleX(1); }
html[data-anim] .rv.rv-in .cover {
  transform: scaleX(0);
  transition: transform 700ms var(--draw-ease);
  transition-delay: var(--rv-delay, 0ms);
}

/* ============ layout patterns ============ */

.duo { display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); align-items: start; }
.duo-wide { display: grid; gap: var(--s4); grid-template-columns: 1.4fr 1fr; align-items: start; }
@media (max-width: 900px) { .duo-wide { grid-template-columns: 1fr; } }

.band-photo { border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
.band-photo img { width: 100%; max-height: 52vh; object-fit: cover; }
.band-photo .pos-low { object-position: 50% 75%; }
.band-photo .pos-mid { object-position: 50% 40%; }

.band-dark {
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--paper);
}
.band-dark p { color: var(--paper); }
.band-dark .small { color: rgba(244, 243, 233, 0.72); }
.band-dark a { color: var(--yellow); }
.band-dark a:hover { color: var(--paper); }
.band-dark :focus-visible { outline-color: var(--yellow); }

/* the flight log (real dated sequence, ruled rows, no cells) */
.log { list-style: none; margin: 0; padding: 0; max-width: 720px; }
.log li {
  display: grid; grid-template-columns: 110px 1fr; gap: var(--s2);
  padding: 14px 2px; border-top: 1px solid var(--hairline);
}
.log li:last-child { border-bottom: 1px solid var(--hairline); }
.log .yr { font-weight: 700; color: var(--green); letter-spacing: 0.08em; }
.log p { margin: 0; font-size: 15px; }

/* data table on the strip page: real enumerable FAA data */
.datatable { width: 100%; border-collapse: collapse; font-size: 15px; max-width: 720px; }
.datatable caption { text-align: left; font-size: 13px; color: var(--ink-2); padding-bottom: 10px; }
.datatable th, .datatable td { text-align: left; padding: 11px 14px 11px 2px; border-top: 1px solid var(--hairline); vertical-align: top; }
.datatable tr:last-child th, .datatable tr:last-child td { border-bottom: 1px solid var(--hairline); }
.datatable th { font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; font-size: 12.5px; color: var(--ink-2); width: 44%; }
.datatable .unpub { color: var(--ochre); }

/* ============ buttons ============ */

.btn {
  display: inline-block; padding: 14px 26px; min-height: 44px;
  background: var(--green); color: var(--paper);
  font-family: var(--body); font-weight: 700; font-size: 14px;
  letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none;
  border: 0; cursor: pointer;
}
.btn:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
@media (prefers-reduced-motion: no-preference) { .btn { transition: background var(--t-fast), transform var(--t-fast); } }
.band-dark .btn { background: var(--yellow); color: var(--ink); }
.band-dark .btn:hover { background: var(--paper); color: var(--ink); }

/* ============ the signature plan view ============ */

.plan-wrap { overflow-x: auto; }
.plan-svg { display: block; width: 100%; height: auto; min-width: 640px; }
.plan-svg .ln { stroke: var(--ink); fill: none; }
.plan-svg .ln-soft { stroke: var(--hairline); fill: none; }
.plan-svg .ln-green { stroke: var(--green); fill: none; }
.plan-svg .ln-yellow { stroke: var(--yellow); fill: none; }
.plan-svg text { font-family: var(--body); fill: var(--ink); }
.plan-svg .lbl { font-size: 13px; font-weight: 700; letter-spacing: 0.04em; }
.plan-svg .lbl-sub { font-size: 12px; fill: var(--ink-2); }
.plan-svg .lbl-unpub { font-size: 12px; fill: var(--ochre); }
.plan-svg .lbl-big { font-size: 21px; font-weight: 700; letter-spacing: 0.08em; }
.plan-svg .rwy-num { font-size: 15px; font-weight: 700; fill: var(--green); letter-spacing: 0.05em; }
.plan-cap { margin-top: var(--s2); }

/* ============ contact form ============ */

.form-grid { display: grid; gap: var(--s2); max-width: 640px; }
.form-grid label { font-size: 12.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); display: block; margin-bottom: 6px; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%; padding: 12px 14px; font-family: var(--body); font-size: 16px;
  color: var(--ink); background: var(--paper-2); border: 2px solid var(--ink); border-radius: 0;
}
.form-grid input:focus-visible, .form-grid select:focus-visible, .form-grid textarea:focus-visible {
  outline: 3px solid var(--yellow); outline-offset: 1px;
}
.form-grid textarea { min-height: 130px; resize: vertical; }
.hp-field { position: absolute; left: -9999px; height: 0; overflow: hidden; }
.form-note {
  display: none; margin-top: var(--s2); padding: var(--s2) var(--s3);
  border-left: 4px solid var(--yellow); background: var(--paper-2);
  font-size: 15px; max-width: 640px;
}
.form-note.show { display: block; }
.form-note a { font-weight: 700; }

/* ============ mobile sticky call bar ============ */

.callbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; grid-template-columns: 1fr 1fr;
  background: var(--ink); border-top: 2px solid var(--yellow);
}
.callbar a {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 8px; text-decoration: none;
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
}
.callbar .cb-call { background: var(--yellow); color: var(--ink); }
.callbar .cb-note { color: var(--paper); }
.callbar.hidden-by-form { display: none !important; }
@media (max-width: 820px) {
  html.js .callbar { display: grid; }
  html.js body { padding-bottom: 54px; }
}

/* ============ footer: the filed flight plan strip ============ */

.site-foot {
  margin-top: var(--s6);
  border-top: 3px double var(--ink);
  background: var(--paper-2);
  font-size: 14px;
}
.foot-in {
  max-width: var(--wrap); margin: 0 auto; padding: var(--s5) clamp(16px, 4vw, 40px) var(--s4);
  display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.site-foot h2 { font-size: 15px; font-family: var(--body); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: var(--s2); }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li { padding: 0; }
.site-foot a { display: inline-block; padding: 6px 0; min-height: 30px; }
.site-foot address { font-style: normal; line-height: 1.7; }
.foot-legal {
  border-top: 1px solid var(--hairline);
  padding: var(--s2) clamp(16px, 4vw, 40px) var(--s3);
  max-width: var(--wrap); margin: 0 auto;
  font-size: 12.5px; color: var(--ink-2); line-height: 1.7;
}
.foot-legal p { max-width: none; margin-bottom: 6px; }
@media (max-width: 820px) { .site-foot a { padding: 10px 0; min-height: 44px; display: flex; align-items: center; } }

/* utility */
.mt2 { margin-top: var(--s2); } .mt3 { margin-top: var(--s3); } .mt4 { margin-top: var(--s4); }
.grid-2 { display: grid; gap: var(--s4); grid-template-columns: 1fr 1fr; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr; } }