/* AirData — base compartilhada das páginas institucionais.
   Mesma forma do chatbot (chatbot.airdata.ita.br/static/css/base.css):
   tokens ITA, cabeçalho de 76px, coluna de 1100px, filetes de 1px, tema claro/escuro. */
:root{
  --primary:#003c7d; --primary-600:#002f63; --primary-300:#4d7bb0;
  --on-primary:#ffffff; --accent:#f5a623;
  --bg:#ffffff; --surface:#ffffff; --surface-2:#f1f4f9;
  --text:#1c2733; --text-muted:#63707f; --border:#e4e9f0;
  --radius:10px; --radius-sm:6px;
  --shadow:0 1px 2px rgba(16,32,56,.04),0 6px 18px rgba(16,32,56,.05);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --header-h:76px; --content-max:1100px; --gutter:clamp(20px,5vw,40px);
  --fs-title:clamp(1.2rem,2.8vw,1.4rem); --fs-section:clamp(1.08rem,2.2vw,1.2rem);
}
[data-theme="dark"]{
  --primary:#58a6ff; --primary-600:#3b8ae6; --primary-300:#2b4d75; --on-primary:#0b1620;
  --bg:#0d1117; --surface:#161b22; --surface-2:#1c232d;
  --text:#e6edf3; --text-muted:#9aa7b4; --border:#262e38;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 18px rgba(0,0,0,.24);
}
*{box-sizing:border-box}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
html,body{margin:0} html{height:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);display:flex;flex-direction:column;min-height:100vh;line-height:1.5}
a{color:var(--primary)}
.app-header{height:var(--header-h);flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 calc(max(0px,(100% - var(--content-max))/2) + var(--gutter));background:var(--surface);color:var(--text);border-bottom:1px solid var(--border)}
.app-header__brand{display:flex;align-items:center;gap:12px}
.app-header__portal{display:flex;text-decoration:none;align-items:center;gap:10px}
.app-header__logo{height:52px;width:auto}
[data-theme="dark"] .app-header__logo{background:#fff;border-radius:6px;padding:4px 8px}
.app-header__wordmark{font-weight:700;font-size:1.25rem;color:var(--primary);letter-spacing:-.02em;line-height:1}
.app-header__subtitle{display:block;font-size:13px;color:var(--text-muted);text-decoration:none}
.app-nav{display:flex;gap:6px;margin-left:auto;margin-right:14px;flex-wrap:wrap}
.app-nav__link{color:var(--text-muted);text-decoration:none;font-size:.88rem;padding:6px 10px;border-radius:var(--radius-sm);transition:background .15s ease,color .15s ease}
.app-nav__link:hover{color:var(--text);background:var(--surface-2)}
.app-nav__link.is-active{color:var(--primary);font-weight:600;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px}
@media(max-width:820px){:root{--header-h:64px}.app-header__logo{height:46px}}
@media(max-width:640px){.app-header__subtitle{display:none}.app-nav{gap:2px;margin-right:6px}.app-nav__link{padding:6px 7px;font-size:.84rem}}
.app-main{flex:1 0 auto;display:flex;justify-content:center;width:100%}
.app-footer{flex:0 0 auto;width:100%;max-width:var(--content-max);margin:0 auto;padding:0 var(--gutter)}
.app-footer__inner{margin:0;padding:18px 0 28px;border-top:1px solid var(--border);color:var(--text-muted);font-size:.78rem}
.page{width:100%;max-width:var(--content-max);margin:0 auto;padding:0 var(--gutter)}
.page__inner{padding:clamp(36px,7vw,60px) 0 clamp(40px,7vw,64px)}
.eyebrow{margin:0;font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.btn{font:inherit;font-size:.92rem;font-weight:500;border:none;border-radius:var(--radius-sm);cursor:pointer;padding:9px 16px;transition:background .15s ease,opacity .15s ease,transform .05s ease}
.btn:active{transform:translateY(1px)}
a.btn{text-decoration:none;display:inline-flex;align-items:center}
.btn--primary{background:var(--primary);color:var(--on-primary)} .btn--primary:hover{background:var(--primary-600)}
.btn--ghost{background:none;color:var(--text-muted);padding:7px 10px} .btn--ghost:hover{background:var(--surface-2);color:var(--text)}
.btn--outline{background:var(--surface);color:var(--primary);border:1px solid var(--border)} .btn--outline:hover{background:var(--surface-2);border-color:var(--primary-300)}
.page h1{font-size:var(--fs-title);font-weight:600;line-height:1.32;letter-spacing:-.005em;color:var(--primary);margin:10px 0 0;max-width:100%;text-wrap:pretty}
.page .lead{font-size:.98rem;line-height:1.68;color:var(--text-muted);margin:12px 0 0;max-width:100%}
.section{border-top:1px solid var(--border);margin-top:clamp(28px,5vw,44px);padding-top:clamp(22px,4vw,34px)}
.section h2{font-size:var(--fs-section);font-weight:600;color:var(--primary);margin:10px 0 0;max-width:100%;text-wrap:pretty}
.section p{color:var(--text);line-height:1.7;max-width:100%}
.features{list-style:none;margin:20px 0 0;padding:0;max-width:100%;border-top:1px solid var(--border)}
.features li{padding:12px 2px;border-bottom:1px solid var(--border);font-size:.92rem;line-height:1.6;color:var(--text-muted)}
.features strong{font-weight:600;color:var(--primary)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 5px}
.cta{margin-top:clamp(26px,5vw,40px);display:flex;gap:10px;flex-wrap:wrap}

/* Layout de navegação adaptado para /briefing em telas pequenas. */
.app-header__brand{flex-shrink:0}.app-header__logo{object-fit:contain;max-width:110px}.app-nav{justify-content:flex-end}#theme-toggle{flex-shrink:0}
@media(max-width:1000px){.app-header{height:auto;min-height:var(--header-h);display:grid;grid-template-columns:1fr auto;gap:12px 16px;padding:16px var(--gutter)}.app-nav{grid-column:1/-1;grid-row:2;justify-content:flex-start;margin:0;gap:4px}.app-header__brand{grid-column:1;grid-row:1}#theme-toggle{grid-column:2;grid-row:1}.app-header__subtitle{display:block}}
@media(max-width:480px){.app-nav{gap:4px 0}.app-nav__link{padding:7px 9px}.app-header__subtitle{font-size:12px}.app-header__logo{height:44px}}