/* ==========================================================================
   Airverity — shared stylesheet
   Palette rule: ember (--ember) appears once per screen and always means
   something needs attention. Do not use it for decoration.
   ========================================================================== */

:root{
  --ink:#011D4B;          /* ink navy   — headlines, body on light        */
  --panel:#012A5E;        /* panel navy — instrument panels               */
  --signal:#006CDD;       /* signal blue— every accent, rule, link        */
  --sky:#4FC3F7;          /* sky        — readings on navy, light accents */
  --ember:#FF5E04;        /* ember      — attention. Once per screen.     */
  --paper:#F5F8FC;        /* paper      — page background                 */
  --white:#FFFFFF;
  --slate:#5E6B7D;        /* secondary text on light                      */
  --hairline:#D7E2F0;
  --panel-line:rgba(255,255,255,.16);

  --wrap:1120px;
  --gutter:24px;
  --radius:14px;

  --display:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;
  --body:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SF Mono',Menlo,monospace;
}

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

html{scroll-behavior:smooth;scroll-padding-top:96px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:var(--display);line-height:1.1;margin:0 0 .5em;letter-spacing:-.015em}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:700}
h2{font-size:clamp(1.65rem,3vw,2.35rem);font-weight:700}
h3{font-size:1.18rem;font-weight:600;letter-spacing:-.005em}
p{margin:0 0 1.1em}
a{color:var(--signal);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
ul{margin:0 0 1.1em;padding-left:1.15em}
li{margin-bottom:.45em}

:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:4px}
.panel :focus-visible{outline-color:var(--sky)}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.lede{font-size:1.16rem;color:var(--slate);max-width:62ch}
.tight{max-width:66ch}
.center{text-align:center}

/* --- skip link ----------------------------------------------------------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
      padding:12px 18px;z-index:200}
.skip:focus{left:12px;top:12px}

/* --- header -------------------------------------------------------------- */
.site-head{position:sticky;top:0;z-index:100;background:rgba(245,248,252,.94);
  backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--hairline)}
.head-inner{max-width:var(--wrap);margin:0 auto;padding:14px var(--gutter);
  display:flex;align-items:center;gap:28px}
.brand{flex:0 0 auto}
.brand img{height:46px;width:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:26px}
.nav a{font-size:.93rem;font-weight:500;color:var(--ink);text-decoration:none}
.nav a:hover{color:var(--signal)}
.nav a[aria-current="page"]{color:var(--signal);font-weight:600}
.nav .btn{margin-left:4px}

.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--hairline);
  border-radius:8px;padding:9px 12px;font:inherit;font-size:.85rem;color:var(--ink);cursor:pointer}

@media (max-width:900px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:100%;left:0;right:0;background:var(--white);
       border-bottom:1px solid var(--hairline);flex-direction:column;align-items:stretch;
       gap:0;padding:8px 0;display:none}
  .nav.open{display:flex}
  .nav a{padding:13px var(--gutter)}
  .nav .btn{margin:10px var(--gutter) 14px;text-align:center}
}

/* --- buttons ------------------------------------------------------------- */
.btn{display:inline-block;font-family:var(--body);font-weight:600;font-size:.95rem;
  padding:12px 22px;border-radius:10px;border:2px solid var(--signal);
  background:var(--signal);color:#fff;cursor:pointer;text-decoration:none;
  transition:background .15s ease,border-color .15s ease,transform .15s ease}
.btn:hover{background:#0059b8;border-color:#0059b8;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--signal)}
.btn-ghost:hover{background:rgba(0,108,221,.08);color:var(--signal)}
.btn-on-navy{background:var(--white);border-color:var(--white);color:var(--ink)}
/* specificity: .panel a is (0,1,1) and would otherwise recolour every button */
a.btn{color:#fff}
a.btn-ghost{color:var(--signal)}
a.btn-on-navy{color:var(--ink)}
.panel a.btn{color:#fff}
.panel a.btn-ghost{color:var(--sky)}
.panel a.btn-on-navy{color:var(--ink)}
.btn-on-navy:hover{background:#e8f0fb;border-color:#e8f0fb}
@media (prefers-reduced-motion:reduce){.btn{transition:none}}

/* --- sections ------------------------------------------------------------ */
.section{padding:76px 0}
.section-sm{padding:52px 0}
.panel{background:var(--panel);color:#EAF2FD}
.panel h1,.panel h2,.panel h3{color:#fff}
.panel .lede{color:#B9D0EC}
.panel a{color:var(--sky)}
.on-white{background:var(--white)}

/* Section marker: a clock time, because this product is about sequence
   within a single day. Not a decorative number. */
.stamp{font-family:var(--mono);font-size:.82rem;letter-spacing:.08em;
  color:var(--signal);text-transform:uppercase;margin:0 0 10px}
.panel .stamp{color:var(--sky)}

/* --- the alert card: the signature object -------------------------------- */
.alert{background:var(--panel);border-radius:var(--radius);color:#EAF2FD;
  padding:22px 24px;box-shadow:0 18px 44px rgba(1,29,75,.22);
  border:1px solid var(--panel-line)}
.alert-top{display:flex;align-items:center;gap:10px;
  border-bottom:1px solid var(--panel-line);padding-bottom:13px;margin-bottom:16px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--ember);flex:0 0 auto}
.alert-who{font-family:var(--display);font-weight:600;font-size:1rem;color:#fff}
.alert-when{font-family:var(--mono);font-size:.8rem;color:#9FC0E6;margin-left:auto}
.readings{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.readings li{display:flex;align-items:baseline;gap:14px;margin:0}
.r-label{font-size:.86rem;color:#A9C6E8;flex:1 1 auto}
.r-value{font-family:var(--mono);font-size:1rem;color:#fff;white-space:nowrap}
.r-flag{color:var(--ember);font-weight:600}
.alert-foot{margin-top:17px;padding-top:15px;border-top:1px solid var(--panel-line);
  font-size:.9rem;color:#C8DDF5}
.alert-foot strong{color:#fff;font-weight:600}

/* the text the office sent */
.sms{background:rgba(255,255,255,.07);border-left:3px solid var(--sky);
  border-radius:0 10px 10px 0;padding:13px 16px;margin-top:16px;font-size:.92rem;color:#DCEAFA}
.sms .sms-meta{font-family:var(--mono);font-size:.74rem;color:#93B6E0;
  letter-spacing:.05em;display:block;margin-bottom:6px}

/* --- hero ---------------------------------------------------------------- */
.hero{padding:64px 0 72px;background:
  radial-gradient(1100px 460px at 78% -8%,rgba(0,108,221,.10),transparent 62%),var(--paper)}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.hero h1{margin-bottom:.35em}
.hero .lede{font-size:1.2rem}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-note{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;
  color:var(--slate);margin-top:20px;text-transform:uppercase}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero{padding:44px 0 52px}
}

/* entrance: the alert arrives */
.arrive{opacity:0;transform:translateY(14px)}
.arrive.in{opacity:1;transform:none;transition:opacity .5s ease,transform .5s ease}
@media (prefers-reduced-motion:reduce){
  .arrive{opacity:1;transform:none}
  .arrive.in{transition:none}
}

/* --- grids and cards ----------------------------------------------------- */
.grid{display:grid;gap:26px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:var(--white);border:1px solid var(--hairline);border-radius:var(--radius);
  padding:26px 24px}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card-num{font-family:var(--mono);font-size:.8rem;color:var(--signal);
  letter-spacing:.08em;display:block;margin-bottom:10px}
.panel .card{background:rgba(255,255,255,.06);border-color:var(--panel-line);color:#DCEAFA}
.panel .card h3{color:#fff}

/* stat block */
.stat{font-family:var(--display);font-weight:700;font-size:clamp(1.9rem,3.4vw,2.7rem);
  color:var(--signal);line-height:1;letter-spacing:-.02em}
.stat-label{font-size:.9rem;color:var(--slate);margin-top:9px}
.panel .stat{color:var(--sky)}
.panel .stat-label{color:#B9D0EC}

/* --- the ticket: a service ticket rendered as an object ------------------ */
.ticket{background:var(--white);border:1px solid var(--hairline);border-radius:var(--radius);
  overflow:hidden}
.ticket-head{display:flex;align-items:baseline;gap:12px;padding:16px 22px;
  border-bottom:1px solid var(--hairline);background:#FBFDFF}
.ticket-head .t-id{font-family:var(--mono);font-size:.82rem;color:var(--slate);letter-spacing:.05em}
.ticket-head .t-title{font-family:var(--display);font-weight:600}
.ticket-row{display:flex;align-items:baseline;gap:16px;padding:12px 22px;
  border-bottom:1px solid var(--hairline);font-size:.95rem}
.ticket-row:last-child{border-bottom:0}
.ticket-row .t-l{flex:1 1 auto;color:var(--ink)}
.ticket-row .t-v{font-family:var(--mono);white-space:nowrap;color:var(--ink)}
.ticket-row.is-total{background:#F3F8FE;font-weight:600}
.ticket-row.is-flag .t-l,.ticket-row.is-flag .t-v{color:var(--ember)}

/* --- comparison: with and without --------------------------------------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--hairline);
  border-radius:var(--radius);overflow:hidden;background:var(--white)}
.compare>div{padding:26px 24px}
.compare>div+div{border-left:1px solid var(--hairline)}
.compare h3{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;
  font-family:var(--body);font-weight:600;color:var(--slate)}
.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:grid;grid-template-columns:74px 1fr;gap:14px;padding:11px 0;
  border-top:1px dashed var(--hairline);margin:0;font-size:.95rem}
.timeline li:first-child{border-top:0}
.timeline time{font-family:var(--mono);font-size:.82rem;color:var(--signal)}
.compare .bad time{color:var(--slate)}
@media (max-width:720px){
  .compare{grid-template-columns:1fr}
  .compare>div+div{border-left:0;border-top:1px solid var(--hairline)}
}

/* --- callout: the one ember moment per screen --------------------------- */
.callout{background:var(--ink);border:2px solid var(--ember);border-radius:var(--radius);
  color:#fff;padding:22px 26px;font-family:var(--display);font-weight:600;
  font-size:1.1rem;line-height:1.45}
.callout p:last-child{margin-bottom:0}

/* --- FAQ ----------------------------------------------------------------- */
.faq{border-top:1px solid var(--hairline)}
.faq details{border-bottom:1px solid var(--hairline);background:var(--white)}
.faq summary{cursor:pointer;padding:19px 22px;font-family:var(--display);font-weight:600;
  font-size:1.03rem;list-style:none;display:flex;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";margin-left:auto;font-family:var(--mono);
  color:var(--signal);font-size:1.25rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .answer{padding:0 22px 20px;color:var(--slate);max-width:78ch}
.faq .answer p:last-child{margin-bottom:0}

/* --- form ---------------------------------------------------------------- */
.form{background:var(--white);border:1px solid var(--hairline);border-radius:var(--radius);
  padding:28px 26px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:.94rem;margin-bottom:7px}
.field .hint{font-size:.85rem;color:var(--slate);margin:-2px 0 9px}
.field input[type=text],.field input[type=email],.field input[type=tel],
.field select,.field textarea{
  width:100%;padding:12px 13px;font:inherit;font-size:1rem;color:var(--ink);
  background:var(--white);border:1px solid #B9C8DA;border-radius:9px}
.field textarea{min-height:120px;resize:vertical}
.checks{display:grid;gap:9px}
.field .check{display:flex;align-items:flex-start;gap:10px;font-size:.96rem;
  line-height:1.45;font-weight:400;margin-bottom:0}
.check input{margin-top:4px;width:17px;height:17px;flex:0 0 auto;accent-color:var(--signal)}
.req{color:var(--ember);font-weight:700}
.err{color:var(--ember);font-size:.88rem;margin-top:6px;display:none}
.err.show{display:block}
.form-note{font-size:.88rem;color:var(--slate);margin-top:16px}

/* --- footer -------------------------------------------------------------- */
.site-foot{background:var(--ink);color:#B9D0EC;padding:52px 0 34px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;align-items:start}
.site-foot img{height:48px;width:auto;margin-bottom:16px}
.site-foot h4{font-family:var(--body);font-size:.8rem;text-transform:uppercase;
  letter-spacing:.09em;color:#7FA6D6;margin:0 0 12px}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin-bottom:9px}
.site-foot a{color:#DCEAFA;font-size:.95rem}
.foot-bar{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;
  display:flex;gap:14px;flex-wrap:wrap;font-size:.85rem;color:#7FA6D6}
.foot-bar .tag{font-family:var(--mono);letter-spacing:.05em}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr;gap:26px}}

/* --- utilities ----------------------------------------------------------- */
.rule{height:3px;background:var(--signal);border:0;width:64px;margin:0 0 24px;border-radius:2px}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.stack>*+*{margin-top:20px}
.pill{display:inline-block;font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;
  text-transform:uppercase;padding:6px 11px;border-radius:999px;
  border:1px solid var(--signal);color:var(--signal)}
.panel .pill{border-color:var(--sky);color:var(--sky)}