/* ==================================================================
   AZIMUTH — shared design system. Loaded by every page (index.html,
   about.html, and any page added later). Extracted from the original
   single-file V2.1 template specifically so a second page never has to
   duplicate ~400KB of tokens/fonts/nav markup — duplicated files drift
   apart silently (proven costly once already, in the manager dashboard).
   Page-specific styles (hero, canvas, section-specific components) stay
   in each page's own <style> block, not here.
   ================================================================== */

:root{
  color-scheme:dark;
  /* Typography unification, 2026-08-08: one family everywhere (Inter,
     self-hosted in fonts.css), differentiated by weight/features instead
     of a separate typeface — Headline 700 (tight tracking), Heading 600,
     Body 400-500, Data 500-700 + tabular-nums. Matches both dashboard
     apps, done first. */
  --font:"Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* color */
  --surface-page:#004c68; --surface-card:#042a3d; --surface-elev:#0f4a67;
  --sidebar-grad:linear-gradient(180deg, #024460 0%, #012f45 55%, #001a27 100%);
  --ink-primary:#f3e6d0; --ink-secondary:#dbe2e7; --ink-muted:#c3ccd3;
  --hairline:rgba(243,230,208,.14); --baseline:rgba(243,230,208,.24); --grid:rgba(243,230,208,.10);
  --brand:#2e86c1; --brand-strong:#004f7a; --brand-soft:rgba(46,134,193,.18); --on-brand:#f3e6d0;
  --accent:#c6864f; --accent-soft:rgba(198,134,79,.20);
  --accent-text:#d89e70; /* AA-validated copper for small text — #accent fails 4.5:1 below ~14px */
  --value:#2ecc71; --value-soft:rgba(46,204,113,.18);
  --down:#e74c3c; --down-soft:rgba(231,76,60,.18);
  --neutral:#7c7794;

  /* radius scale */
  --r-lg:24px; --r-md:16px; --r-sm:11px; --r-xs:9px;

  /* spacing — the one clamp() pattern reused everywhere content meets the viewport edge */
  --pad-inline:clamp(20px,5vw,64px);

  /* motion — one easing curve, two durations, used by every interactive element site-wide */
  --ease:cubic-bezier(.16,1,.3,1);
  --dur-fast:.3s;
  --dur-med:.45s;

  /* shadow — the two elevations used across cards/panels/buttons */
  --shadow-panel:0 24px 60px rgba(0,8,20,.42), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-card:0 14px 34px rgba(0,8,20,.30);
  --shadow-btn:0 10px 26px rgba(196,109,59,.30);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; min-height:100vh;
  font-family:var(--font); color:var(--ink-primary);
  background:var(--sidebar-grad);
  background-attachment:fixed;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
img,svg{display:block;}

/* one consistent, on-brand focus style for every interactive element */
a:focus-visible, button:focus-visible, [tabindex]:focus-visible{
  outline:2px solid var(--accent-text); outline-offset:3px; border-radius:4px;
}

/* ==================================================================
   SHARED COMPONENTS — reused by every page.
   ================================================================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  border-radius:var(--r-sm); padding:15px 26px; cursor:pointer;
  font-weight:600; font-size:13.5px; letter-spacing:.08em; text-transform:uppercase;
  border:none; transition:transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), background var(--dur-fast) ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{ background:linear-gradient(180deg,#c8763f,#b3612f); color:#17110a; box-shadow:var(--shadow-btn); }
.btn-primary:hover{box-shadow:0 16px 34px rgba(196,109,59,.4);}
.btn-ghost{ background:transparent; color:var(--ink-primary); border:1px solid var(--baseline); }
.btn-ghost:hover{border-color:var(--accent); color:var(--accent);}

/* eyebrow — the recurring small-caps label above section titles.
   Previously had a diagonal "bearing tick" mark before the label;
   removed per founder feedback (read as a stray slash at a glance). */
.eyebrow{
  display:inline-flex; align-items:center;
  font-family:var(--font); font-weight:500; font-size:12px; letter-spacing:.32em;
  text-transform:uppercase; color:var(--accent-text); margin:0 0 14px;
}

.section{max-width:1180px; margin:0 auto; padding:clamp(70px,9vh,120px) var(--pad-inline);}
.section__head{max-width:680px; margin:0 auto clamp(44px,6vw,64px); text-align:center;}
.section__title{font-weight:600; font-size:clamp(26px,3vw,38px); line-height:1.2; margin:0 0 16px; color:var(--ink-primary);}
.section__lead{font-weight:500; font-size:15.5px; line-height:1.75; color:var(--ink-secondary); margin:0;}

.info-card{
  background:linear-gradient(160deg, rgba(5,42,60,.55) 0%, rgba(0,20,31,.65) 100%);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-md);
  padding:28px 26px;
  transition:border-color var(--dur-med) ease, transform var(--dur-med) var(--ease);
}
.info-card:hover{border-color:rgba(255,255,255,.16); transform:translateY(-3px);}
.info-card__icon{width:30px; height:30px; margin-bottom:18px; color:var(--accent-text); flex:none;}
.info-card__icon svg{width:100%; height:100%; fill:none; stroke:currentColor; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round;}
.info-card__title{font-size:16px; font-weight:500; letter-spacing:.01em; margin:0 0 8px; color:var(--ink-primary);}
.info-card__text{font-size:13.5px; line-height:1.65; color:var(--ink-secondary); margin:0; font-weight:400;}

/* text-link — the small arrow-link pattern used for in-page cross-references
   (Home's About teaser, About's cross-links to Home sections) */
.text-link{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13.5px; letter-spacing:.04em; color:var(--accent-text);
  transition:gap var(--dur-fast) ease;
}
.text-link:hover{gap:12px;}

/* editorial — stacked prose blocks (Mission/Vision/Principles, Leadership,
   Operating Philosophy) where a card grid would overstate three short
   paragraphs as separate "products." Plain sequential text instead. */
.editorial{max-width:720px; margin:0 auto;}
.editorial + .editorial{margin-top:clamp(32px,5vw,48px);}
.editorial__title{font-size:19px; font-weight:500; letter-spacing:.01em; margin:0 0 12px; color:var(--ink-primary);}
.editorial__text{font-size:15px; line-height:1.8; font-weight:400; color:var(--ink-secondary); margin:0;}
.editorial__text + .text-link{margin-top:18px;}

.grid{display:grid; gap:20px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-6{grid-template-columns:repeat(3,1fr);}
@media (max-width:940px){ .grid-4{grid-template-columns:repeat(2,1fr);} .grid-6{grid-template-columns:repeat(2,1fr);} }
@media (max-width:640px){ .grid-3,.grid-4,.grid-6{grid-template-columns:1fr;} }

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{ animation-duration:.01ms !important; animation-iteration-count:1 !important; }
}

/* ==================================================================
   NAV — identical markup expected on every page (see partials.md).
   ================================================================== */
.nav{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:20px var(--pad-inline);
  background:rgba(1,26,39,.55);
  border-bottom:1px solid var(--hairline);
  -webkit-backdrop-filter:blur(16px); backdrop-filter:blur(16px);
}
.nav__brand{display:flex; align-items:center; gap:16px; margin-inline-end:34px; border-radius:var(--r-xs); transition:opacity var(--dur-fast) ease;}
.nav__brand:hover{opacity:.82;}
.nav__mark{width:48px; height:44px; flex:none; background:url("../assets/azimuth-mark.png") center/contain no-repeat;}
.nav__word{font-weight:700; font-size:22px; letter-spacing:.30em; padding-inline-start:.3em; color:var(--ink-primary);}
.nav__links{display:flex; align-items:center; gap:38px; list-style:none; margin:0 auto 0 0; padding:0;}
.nav__links a{ font-size:13px; color:var(--ink-secondary); letter-spacing:.03em; position:relative; padding-bottom:4px; }
.nav__links a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--accent); transition:right var(--dur-med) var(--ease);
}
.nav__links a:hover{color:var(--ink-primary);}
.nav__links a:hover::after{right:0;}
.nav__links a[aria-current="page"]{color:var(--ink-primary);}
.nav__links a[aria-current="page"]::after{right:0; background:var(--accent-text);}
.nav__actions{display:flex; align-items:center; gap:16px;}
.nav__login{
  border:1px solid var(--baseline); border-radius:var(--r-xs);
  padding:9px 18px; font-size:12.5px; letter-spacing:.06em; color:var(--ink-secondary);
  transition:border-color var(--dur-fast) ease, color var(--dur-fast) ease; cursor:default;
}
.nav__login:hover{border-color:var(--brand); color:var(--ink-primary);}

.nav__burger{
  display:none; width:36px; height:36px; border:none; background:none; cursor:pointer;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav__burger span{width:20px; height:1.5px; background:var(--ink-primary); transition:transform var(--dur-med) var(--ease), opacity var(--dur-fast) ease;}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

.nav__mobile{
  display:none; position:fixed; inset:77px 0 auto 0; z-index:49;
  background:rgba(1,26,39,.97); border-bottom:1px solid var(--hairline);
  -webkit-backdrop-filter:blur(16px); backdrop-filter:blur(16px);
  padding:8px var(--pad-inline) 28px;
  transform:translateY(-8px); opacity:0; pointer-events:none;
  transition:transform var(--dur-med) var(--ease), opacity var(--dur-med) ease;
}
.nav__mobile.is-open{transform:translateY(0); opacity:1; pointer-events:auto;}
.nav__mobile ul{list-style:none; margin:0; padding:0; display:flex; flex-direction:column;}
.nav__mobile a{ display:block; padding:16px 4px; font-size:15px; color:var(--ink-secondary); border-top:1px solid var(--hairline); }
.nav__mobile a:first-child{border-top:none;}
.nav__mobile a:hover{color:var(--ink-primary);}
.nav__mobile a[aria-current="page"]{color:var(--accent-text);}

@media (max-width:860px){
  .nav__links{display:none;}
  .nav__actions .nav__login{display:none;}
  .nav__burger{display:flex;}
  .nav__mobile{display:block;}
  .nav__brand{margin-inline-end:0;}
}

/* ==================================================================
   FINAL CTA — the closing block used at the end of every page.
   ================================================================== */
.final-cta{text-align:center; padding-bottom:clamp(90px,12vh,140px);}
.final-cta__title{font-weight:700; letter-spacing:-.01em; font-size:clamp(28px,3.6vw,44px); margin:0 0 18px; color:var(--ink-primary);}
.final-cta__sub{font-size:15px; color:var(--ink-secondary); font-weight:500; max-width:480px; margin:0 auto 34px;}

/* Contact form — sits inside the final CTA section */
[hidden]{display:none !important;} /* so the hidden attr beats .btn/.contact-form display */
.contact-form{max-width:480px; margin:0 auto; text-align:left; display:flex; flex-direction:column; gap:18px;}
.contact-field{display:flex; flex-direction:column; gap:7px;}
.contact-field label{font-size:12px; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-muted);}
.contact-field__opt{text-transform:none; letter-spacing:0; font-weight:500; color:var(--neutral);}
.contact-form input, .contact-form textarea, .contact-form select{
  font-family:var(--font); font-size:15px; color:var(--ink-primary);
  background:var(--surface-card); border:1px solid var(--hairline); border-radius:var(--r-sm);
  padding:13px 15px; transition:border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.contact-form textarea{resize:vertical; min-height:110px;}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus{
  outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft);
}
.contact-form input:user-invalid, .contact-form textarea:user-invalid, .contact-form select:user-invalid{border-color:var(--down);}

/* phone: country-code dropdown + number in one row */
.phone-row{display:flex; gap:10px;}
.contact-form select.phone-cc{
  flex:1 1 52%; min-width:0; cursor:pointer;
  appearance:none; -webkit-appearance:none; padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23c3ccd3' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 14px center;
}
.contact-form .phone-num{flex:1 1 48%; min-width:0;}
.contact-form select.phone-cc option{background:var(--surface-card); color:var(--ink-primary);}
/* show the "Select…" placeholder in a muted tone until a real country is chosen */
.contact-form select:required:invalid{color:var(--neutral);}
.contact-form select option{color:var(--ink-primary);}
.contact-form .btn-primary{margin-top:4px; align-self:flex-start;}
.contact-form .btn-primary:disabled{opacity:.6; cursor:default; transform:none;}
/* honeypot — visually and functionally hidden from real users */
.contact-form__hp{position:absolute; left:-9999px; width:0; height:0; opacity:0; pointer-events:none;}
.contact-form__status{font-size:14px; font-weight:500; margin:2px 0 0; min-height:1em;}
.contact-form__status.is-ok{color:var(--value);}
.contact-form__status.is-err{color:var(--down);}
.contact-form.is-sent .contact-field, .contact-form.is-sent .btn-primary{display:none;}
.contact-form.is-sent .contact-form__status{font-size:15px;}

/* ==================================================================
   FOOTER — identical on every page.
   ================================================================== */
.footer{border-top:1px solid var(--hairline); padding:32px var(--pad-inline); text-align:center;}
.footer__text{font-family:var(--font); font-size:11px; letter-spacing:.08em; color:var(--ink-muted); display:inline-flex; align-items:center; gap:10px;}
.footer__tick{width:10px; height:1px; background:var(--accent-text); transform:rotate(-34deg); flex:none;}

/* ==================================================================
   PAGE INTRO — shared header pattern for any secondary page (About,
   and future Solutions/Research/Contact) that doesn't need the
   Home page's full animated hero + System Canvas treatment.
   Evolves the hero's typography scale down one step rather than
   inventing a new one — same font weights, same eyebrow, same rhythm.
   ================================================================== */
.page-intro{
  max-width:820px; margin:0 auto;
  padding:clamp(56px,9vh,100px) var(--pad-inline) 0;
  text-align:center;
}
.page-intro__eyebrow{margin:0 0 22px;}
.page-intro__title{
  font-weight:700; letter-spacing:-0.01em; line-height:1.16;
  font-size:clamp(30px,4.4vw,48px);
  margin:0 0 22px; color:var(--ink-primary);
}
.page-intro__lead{
  font-size:clamp(15px,1.6vw,17px); line-height:1.75; font-weight:400;
  color:var(--ink-secondary); margin:0 auto;
}