/* Style of the AirFrame web pages. One file, no external resources. */
:root {
    --ink: #10233f;
    --ink-soft: #46597a;
    --line: #d9e0ea;
    --paper: #ffffff;
    --wash: #f4f6fa;
    --accent: #1f6feb;
    --accent-dark: #1857b8;
    --good: #1c7c45;
    --bad: #b3261e;
    --warn: #8a5a00;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
    color: var(--ink);
    background: var(--paper);
}

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* header */
.top { background: var(--ink); color: #fff; }
.top .wrap { display: flex; align-items: center; gap: 24px; min-height: 58px; flex-wrap: wrap; }
.brand { font-size: 20px; font-weight: 700; letter-spacing: 0.3px; color: #fff; text-decoration: none; }
.brand span { color: #7fb2ff; }
.top nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.top nav.right { flex: 0 0 auto; }
.top nav a, .top nav button {
    color: #d5deec; text-decoration: none; padding: 8px 12px; border-radius: 6px;
    background: none; border: 0; font: inherit; cursor: pointer;
}
.top nav a:hover, .top nav button:hover, .top nav a.here { color: #fff; background: rgba(255, 255, 255, 0.12); }
.top nav form { margin: 0; }

/* hero of the home page */
.hero { background: linear-gradient(180deg, #10233f 0%, #17335c 100%); color: #fff; padding: 48px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 32px; align-items: center; }
.hero h1 { font-size: 38px; line-height: 1.15; margin: 0 0 14px; }
.hero p { font-size: 18px; color: #cdd8ea; margin: 0 0 22px; max-width: 34em; }
.hero img { width: 100%; height: auto; }
.badge { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.6px; text-transform: uppercase;
    padding: 3px 9px; border-radius: 999px; background: rgba(127, 178, 255, 0.18); color: #a9cbff; margin-bottom: 14px; }

/* buttons */
.button, button.button {
    display: inline-block; padding: 10px 18px; border-radius: 7px; border: 1px solid var(--accent);
    background: var(--accent); color: #fff; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.button:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.button.quiet { background: transparent; color: var(--accent); }
.button.quiet:hover { background: var(--wash); color: var(--accent-dark); }
.hero .button.quiet { color: #fff; border-color: rgba(255, 255, 255, 0.5); }
.hero .button.quiet:hover { background: rgba(255, 255, 255, 0.1); }
.button.danger { background: var(--bad); border-color: var(--bad); }
.button.small { padding: 4px 10px; font-size: 14px; font-weight: 500; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* content */
main { padding: 34px 0 56px; }
h1 { font-size: 30px; margin: 0 0 18px; }
h2 { font-size: 21px; margin: 34px 0 12px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.lead { font-size: 18px; color: var(--ink-soft); max-width: 44em; }
.muted { color: var(--ink-soft); }
.narrow { max-width: 460px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 22px 0; }
.card { border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; background: var(--paper); }
.card ul { margin: 8px 0 0; padding-left: 18px; color: var(--ink-soft); }
.card li { margin: 3px 0; }
.band { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 26px 0; margin: 34px 0; }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 18px 0 8px; }
.fact { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; background: var(--paper); }
.fact b { display: block; font-size: 26px; line-height: 1.2; }
.fact span { color: var(--ink-soft); font-size: 14px; }

/* tables */
table { border-collapse: collapse; width: 100%; margin: 8px 0 4px; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--ink-soft); font-size: 13px; text-transform: uppercase; letter-spacing: 0.4px; }
td.number, th.number { text-align: right; font-variant-numeric: tabular-nums; }
td form { margin: 0; }
.scroll { overflow-x: auto; }

/* forms */
form.stack p { margin: 0 0 14px; }
form.stack label { display: block; font-weight: 600; margin-bottom: 4px; }
form.stack input[type=text], form.stack input[type=email], form.stack input[type=password], form.stack select {
    width: 100%; padding: 9px 11px; border: 1px solid #b9c4d4; border-radius: 7px; font: inherit; background: #fff; color: var(--ink);
}
form.stack input:focus, form.stack select:focus { outline: 2px solid rgba(31, 111, 235, 0.35); border-color: var(--accent); }
form.stack p.check label { display: inline; font-weight: 400; margin-left: 6px; }
form.stack .help { color: var(--ink-soft); font-size: 14px; margin-top: 4px; }
form.stack ul.errorlist, ul.errorlist { list-style: none; margin: 4px 0 0; padding: 0; color: var(--bad); font-size: 14px; }

/* notes and messages */
.note { border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 6px; padding: 12px 16px; background: var(--wash); margin: 16px 0; }
.note.good { border-left-color: var(--good); }
.note.warn { border-left-color: #d49a00; background: #fff8e6; }
.note.bad { border-left-color: var(--bad); background: #fdf0ef; }
.pill { display: inline-block; padding: 1px 9px; border-radius: 999px; font-size: 13px; background: var(--wash); border: 1px solid var(--line); }
.pill.good { color: var(--good); border-color: #b9dcc7; background: #eef8f1; }
.pill.warn { color: var(--warn); border-color: #ecd9a6; background: #fff8e6; }

/* footer */
footer { border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; padding: 18px 0 30px; }
footer .wrap { display: flex; gap: 18px; flex-wrap: wrap; justify-content: space-between; }

@media (max-width: 800px) {
    .hero .wrap { grid-template-columns: 1fr; }
    .hero h1 { font-size: 30px; }
    .cards { grid-template-columns: 1fr; }
    .facts { grid-template-columns: repeat(2, 1fr); }
}