/* FlyGD Wingman — instrument-panel identity.
   One stylesheet, no framework, no external fonts. */

:root {
  --ground:      #0a0d12;
  --panel:       #111720;
  --panel-2:     #161e29;
  --line:        #232d3b;
  --line-bright: #35455a;
  --ink:         #e9eff7;
  --ink-dim:     #a3b4c6;
  --ink-faint:   #7d8fa3;
  --amber:       #ffb224;
  --amber-deep:  #2a1e08;
  --cyan:        #6fd8ec;
  --cyan-deep:   #0c2730;
  --rec:         #ff5757;

  --w-page: 1120px;
  --w-prose: 68ch;
  --r: 10px;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
  /* Keep #anchor targets clear of the sticky header, for clicks and for
     keyboard focus alike. */
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  /* Faint instrument grid. Decorative only. */
  background-image:
    linear-gradient(var(--panel) 1px, transparent 1px),
    linear-gradient(90deg, var(--panel) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; margin: 0 0 .5em; font-weight: 650; }
h1 { font-size: clamp(2.25rem, 1.5rem + 3.2vw, 3.75rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.5rem, 1.25rem + 1vw, 2rem); }
h3 { font-size: 1.0625rem; }
p  { margin: 0 0 1rem; }
p:last-child, ul:last-child, ol:last-child { margin-bottom: 0; }

a { color: var(--cyan); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #a5e9f6; }

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

code, kbd { font-family: var(--mono); font-size: .875em; }

hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }

/* ---------- layout ---------- */

.wrap { width: 100%; max-width: var(--w-page); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); }

.skip {
  position: absolute; left: -9999px;
  background: var(--amber); color: #0a0d12;
  padding: .6rem 1rem; border-radius: 0 0 var(--r) 0; font-weight: 600; z-index: 20;
}
.skip:focus { left: 0; top: 0; }

/* ---------- header ---------- */

.site-head {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10, 13, 18, .88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: 1.5rem; min-height: 60px; flex-wrap: wrap; }

.brand { display: inline-flex; align-items: center; gap: .6rem; color: var(--ink); text-decoration: none; font-weight: 650; letter-spacing: -0.01em; }
.brand:hover { color: var(--ink); }
.brand svg { display: block; flex: none; }
.brand b { font-weight: 650; white-space: nowrap; }
.brand span { color: var(--ink-faint); font-weight: 500; }

.site-nav { margin-left: auto; display: flex; gap: clamp(.75rem, 2vw, 1.5rem); flex-wrap: wrap; }
.site-nav a { color: var(--ink-dim); text-decoration: none; font-size: .9375rem; white-space: nowrap; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--amber); }

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

.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 3.5rem); }
.hero-inner { position: relative; padding: clamp(1.5rem, 4vw, 2.75rem); }

/* HUD corner brackets */
.hero-inner::before, .hero-inner::after {
  content: ""; position: absolute; width: 28px; height: 28px; pointer-events: none;
}
.hero-inner::before { top: 0; left: 0;  border-top: 2px solid var(--line-bright); border-left: 2px solid var(--line-bright); }
.hero-inner::after  { bottom: 0; right: 0; border-bottom: 2px solid var(--line-bright); border-right: 2px solid var(--line-bright); }

.hero h1 { margin-bottom: .25em; }
.tagline { font-size: clamp(1.125rem, 1rem + .9vw, 1.5rem); color: var(--amber); font-weight: 550; margin-bottom: 1rem; }
.hero .lede { max-width: 60ch; color: var(--ink-dim); font-size: clamp(1.0625rem, 1rem + .35vw, 1.1875rem); }

.hero-mark { margin-bottom: 1.25rem; }

.pill {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-dim);
  border: 1px solid var(--line-bright); border-radius: 999px;
  padding: .3rem .75rem; margin-bottom: 1.25rem;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); flex: none; }

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

.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font: inherit; font-weight: 600;
  padding: .7rem 1.25rem; border-radius: var(--r);
  text-decoration: none; border: 1px solid transparent;
}
.btn-primary { background: var(--amber); color: #0a0d12; }
.btn-primary:hover { background: #ffc255; color: #0a0d12; }
.btn-ghost { border-color: var(--line-bright); color: var(--ink); background: var(--panel); }
.btn-ghost:hover { border-color: var(--ink-faint); color: var(--ink); background: var(--panel-2); }
.btn svg { flex: none; }

.actions-note { margin-top: .85rem; font-size: .875rem; color: var(--ink-faint); }

/* ---------- spec strip ---------- */

.spec {
  display: grid; gap: 1px; background: var(--line);
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
  margin-top: 2.5rem;
}
.spec > div { background: var(--panel); padding: .9rem 1.1rem; }
.spec dt { font-family: var(--mono); font-size: .6875rem; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-faint); }
.spec dd { margin: .2rem 0 0; font-size: .9375rem; font-weight: 550; }
.spec dd code { font-size: .8125rem; color: var(--ink-dim); }

/* ---------- sections ---------- */

.section { padding: clamp(2.5rem, 6vw, 4rem) 0; border-top: 1px solid var(--line); }
.section > .wrap > .section-head { max-width: var(--w-prose); margin-bottom: 2rem; }
.section-head p { color: var(--ink-dim); margin-bottom: 0; }

.eyebrow {
  font-family: var(--mono); font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--amber); margin: 0 0 .6rem; display: block;
}

/* ---------- cards ---------- */

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--r); padding: 1.25rem;
}
.card h3 { margin-bottom: .35rem; }
.card p { color: var(--ink-dim); font-size: .9375rem; margin-bottom: 0; }
.card .ico { color: var(--amber); display: block; margin-bottom: .75rem; }

/* ---------- steps ---------- */

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.steps li { background: var(--panel); padding: 1.1rem 1.25rem; display: grid; grid-template-columns: 2rem 1fr; gap: 1rem; align-items: start; }
.steps b { display: block; }
.steps p { color: var(--ink-dim); font-size: .9375rem; margin: .15rem 0 0; }
.step-n { font-family: var(--mono); color: var(--amber); font-size: .875rem; padding-top: .15rem; }

/* ---------- scope panel (the one reviewers read) ---------- */

.panel {
  background: var(--panel); border: 1px solid var(--line-bright);
  border-radius: var(--r); padding: clamp(1.25rem, 3vw, 1.75rem);
}
.panel + .panel { margin-top: 1rem; }

.scope {
  display: block; font-family: var(--mono); font-size: clamp(.8125rem, .7rem + .5vw, 1rem);
  color: var(--amber); background: var(--amber-deep);
  border: 1px solid #4a3711; border-radius: 8px;
  padding: .85rem 1rem; margin: 0 0 1.25rem;
  overflow-wrap: anywhere;
}

.two-col { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); margin-top: 1rem; }

.ticks, .crosses { list-style: none; margin: .5rem 0 0; padding: 0; font-size: .9375rem; }
.ticks li, .crosses li { padding-left: 1.6rem; position: relative; margin-bottom: .4rem; color: var(--ink-dim); }
.ticks li::before  { content: "+"; position: absolute; left: 0; color: var(--cyan);  font-family: var(--mono); font-weight: 700; }
.crosses li::before { content: "\00d7"; position: absolute; left: 0; color: var(--rec); font-family: var(--mono); font-weight: 700; }

.note {
  border-left: 3px solid var(--amber); background: var(--panel-2);
  padding: 1rem 1.15rem; border-radius: 0 var(--r) var(--r) 0;
  font-size: .9375rem; color: var(--ink-dim);
  margin: 1.5rem 0;
}
.note strong { color: var(--ink); }

/* ---------- legal pages ---------- */

.legal { padding: clamp(2rem, 5vw, 3.5rem) 0 4rem; }
.legal-head { max-width: var(--w-prose); margin-bottom: 2.5rem; }
.legal-head .updated { font-family: var(--mono); font-size: .8125rem; color: var(--ink-faint); margin: 0; }

.legal-body { max-width: var(--w-prose); }
.legal-body h2 { margin-top: 2.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.legal-body h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.legal-body h3 { margin-top: 1.75rem; color: var(--ink); }
.legal-body ul, .legal-body ol { padding-left: 1.25rem; }
.legal-body li { margin-bottom: .5rem; }
.legal-body li::marker { color: var(--ink-faint); }

.toc { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 1.25rem 1.5rem; margin-bottom: 2.5rem; }
.toc h2 { font-size: .6875rem; font-family: var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 .75rem; border: 0; padding: 0; }
.toc ol { columns: 2; column-gap: 2rem; margin: 0; padding-left: 1.1rem; font-size: .9375rem; }
.toc li { margin-bottom: .3rem; break-inside: avoid; }

.kv { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin: 1.25rem 0; }
.kv > div { display: grid; grid-template-columns: minmax(9rem, 30%) 1fr; gap: 1rem; padding: .8rem 1rem; background: var(--panel); }
.kv > div + div { border-top: 1px solid var(--line); }
.kv dt { font-family: var(--mono); font-size: .8125rem; color: var(--ink-faint); }
.kv dd { margin: 0; font-size: .9375rem; }

.path { font-family: var(--mono); font-size: .8125rem; background: var(--panel-2); border: 1px solid var(--line); border-radius: 5px; padding: .1rem .4rem; overflow-wrap: anywhere; color: var(--ink); }

/* utilities (kept as classes so the CSP can forbid inline styles) */
.mt-sm { margin: .6rem 0 0; }
.mb-0  { margin-bottom: 0; }

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

.site-foot { border-top: 1px solid var(--line); padding: 2.5rem 0 3rem; margin-top: 2rem; background: rgba(17, 23, 32, .5); }
.foot-grid { display: flex; flex-wrap: wrap; gap: 1.5rem 2.5rem; align-items: flex-start; justify-content: space-between; }
.foot-links { display: flex; flex-wrap: wrap; gap: 1.25rem; list-style: none; margin: 0; padding: 0; }
.foot-links a { color: var(--ink-dim); text-decoration: none; font-size: .9375rem; }
.foot-links a:hover { color: var(--ink); text-decoration: underline; }
.foot-note { color: var(--ink-faint); font-size: .8125rem; max-width: 62ch; margin: 1.5rem 0 0; }
.foot-domain { font-family: var(--mono); font-size: .8125rem; color: var(--ink-faint); }

@media (max-width: 560px) {
  .toc ol { columns: 1; }
  .kv > div { grid-template-columns: 1fr; gap: .2rem; }
  .actions .btn { flex: 1 1 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
  body { background: #fff; color: #000; }
  .site-head, .site-foot, .toc { display: none; }
  a { color: #000; }
}