/* Aeroledger marketing site — same palette and type as the logbook (theme-ivan) */
:root {
  --page: #f4f3ef; --panel: #fbfaf7; --tile: #ffffff; --soft: #ebe9e3; --line: #d4d3ce;
  --ink: #2b2d30; --muted: #5e6268; --strong: #3a3d41;
  --head-bg: #3a3d41; --head-ink: #f4f3ef; --head-sub: #c9cbce;
  --accent: #3d8bfd; --accent-deep: #1d4ed8; --accent-ink: #1d4ed8; --accent-soft: rgba(61,139,253,.12);
  --ok: #2f7d4f; --ok-soft: rgba(47,125,79,.1); --amber: #b45309; --danger: #c0392b;
  --band: #1d4ed8; --band-ink: #ffffff; --hero-bg: #3a3d41; --hero-ink: #f4f3ef;
  --shadow: 0 10px 30px rgba(43,45,48,.10);
}

:root {
  --tech: "JetBrains Mono", "Cascadia Mono", "SFMono-Regular", Consolas, "Roboto Mono", ui-monospace, monospace;
  --cond: "Bahnschrift SemiCondensed", "Bahnschrift", "Roboto Condensed", "Arial Narrow", "Helvetica Neue", system-ui, sans-serif;
  --radius: 6px; --wrap: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page); color: var(--ink); font-family: var(--cond); font-size: 17px; line-height: 1.55; }
a { color: var(--accent-ink); }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 1rem; top: 1rem; background: var(--tile); padding: .5rem; z-index: 99; }

/* header */
.site-head { position: sticky; top: 0; z-index: 20; background: var(--head-bg); color: var(--head-ink); border-bottom: 2px solid var(--accent); }
.site-head .wrap { display: flex; align-items: center; gap: 1rem; min-height: 60px; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--head-ink); text-decoration: none; }
.brand-mark { width: 34px; height: 34px; border-radius: 8px; background: linear-gradient(135deg,#3d8bfd,#1d4ed8); color: #fff; display: grid; place-items: center; font-family: var(--tech); font-weight: 700; font-size: .8rem; }
.brand-name { font-family: var(--tech); font-weight: 700; letter-spacing: .22em; text-transform: uppercase; font-size: .95rem; }
.nav { margin-left: auto; display: flex; align-items: center; gap: .25rem; flex-wrap: wrap; }
.nav a { color: var(--head-sub); text-decoration: none; text-transform: uppercase; letter-spacing: .06em; font-size: .85rem; font-weight: 600; padding: .45rem .6rem; border-radius: 4px; }
.nav a:hover, .nav a:focus-visible { color: var(--head-ink); background: rgba(255,255,255,.08); }
.nav .btn { margin-left: .4rem; }
.menu-btn { display: none; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; border-radius: 4px; padding: .6rem 1.1rem; font: inherit; font-weight: 600; letter-spacing: .03em; text-decoration: none; cursor: pointer; border: 1px solid transparent; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent-deep); }
.btn-primary:hover { background: var(--accent-deep); }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn-sm { padding: .35rem .8rem; font-size: .85rem; }

/* hero */
.hero { background: var(--hero-bg); color: var(--hero-ink); padding: 4.5rem 0 4rem; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.5rem; align-items: center; }
.eyebrow { font-family: var(--tech); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: #93c5fd; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); line-height: 1.08; margin: .6rem 0 1rem; letter-spacing: .01em; }
.hero h1 em { font-style: normal; color: #60a5fa; }
.hero p.lead { font-size: 1.15rem; color: #c9cbce; max-width: 34rem; }
.hero .cta { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.6rem; }
.hero .fine { font-size: .85rem; color: #9aa3ad; margin-top: .7rem; }
.shot { border-radius: 10px; overflow: hidden; border: 1px solid rgba(255,255,255,.14); box-shadow: 0 24px 60px rgba(0,0,0,.45); background: #fff; }
.shot .bar { height: 26px; background: #2b2d30; display: flex; gap: 6px; align-items: center; padding: 0 10px; }
.shot .bar i { width: 10px; height: 10px; border-radius: 50%; background: #5e6268; display: block; }

/* sections */
section { padding: 4.5rem 0; }
.section-title { text-align: center; font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0 0 .5rem; color: var(--accent-ink); }
.section-sub { text-align: center; color: var(--muted); max-width: 40rem; margin: 0 auto 2.5rem; }
.alt { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.card { background: var(--tile); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.card h3 { margin: .2rem 0 .4rem; font-size: 1.35rem; }
.card p { color: var(--muted); margin: 0 0 1rem; }
.card ul { margin: 0 0 1.25rem; padding: 0; list-style: none; }
.card li { padding: .28rem 0 .28rem 1.5rem; position: relative; }
.card li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.card .actions { margin-top: auto; display: flex; gap: .6rem; flex-wrap: wrap; }
.card-icon { width: 48px; height: 48px; border-radius: 10px; display: grid; place-items: center; font-family: var(--tech); font-weight: 700; color: #fff; margin-bottom: .6rem; }
.ic-air { background: linear-gradient(135deg,#3d8bfd,#1d4ed8); } .ic-gt { background: linear-gradient(135deg,#2f7d4f,#0f6e66); } .ic-bind { background: linear-gradient(135deg,#b45309,#8a3f06); }
.tag { display: inline-block; font-family: var(--tech); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; padding: .15rem .5rem; border-radius: 999px; border: 1px solid; margin-left: .4rem; vertical-align: middle; }
.tag-free { color: var(--ok); background: var(--ok-soft); border-color: currentColor; }
.tag-presale { color: #fff; background: var(--amber); border-color: var(--amber); }

.band { background: var(--band); color: var(--band-ink); text-align: center; padding: 2.6rem 0; }
.band h2 { margin: 0 0 1rem; font-size: 1.5rem; }
.band .btn-primary { background: #fff; color: #1d4ed8; border-color: #fff; }
.band .fine { opacity: .8; font-size: .85rem; margin-top: .6rem; }

.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.feature { background: var(--tile); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.feature b { display: block; margin-bottom: .25rem; } .feature span { color: var(--muted); font-size: .95rem; }

/* pricing */
.cur-toggle { display: flex; justify-content: center; gap: .3rem; margin: -1.2rem 0 2rem; }
.cur-toggle button { font: inherit; font-size: .85rem; padding: .3rem .8rem; border-radius: 999px; border: 1px solid var(--line); background: var(--tile); color: var(--ink); cursor: pointer; }
.cur-toggle button[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: var(--accent-deep); }
.prices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; align-items: stretch; }
.price { position: relative; }
.price.popular { border: 2px solid var(--accent); }
.price .ribbon { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; padding: .15rem .7rem; border-radius: 999px; }
.amount { font-family: var(--tech); font-size: 2.4rem; font-weight: 700; color: var(--ink); line-height: 1.1; }
.amount small { font-size: 1rem; color: var(--muted); font-weight: 400; }
.billed { color: var(--muted); font-size: .9rem; min-height: 1.4em; margin-bottom: 1rem; }
.cur-note { text-align: center; color: var(--muted); font-size: .85rem; margin-top: 1.25rem; }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 1.3fr; gap: 2rem; align-items: start; }
form.stack { display: grid; gap: .9rem; }
label { display: grid; gap: .3rem; font-weight: 600; font-size: .92rem; }
input, select, textarea { font: inherit; font-weight: 400; padding: .6rem .7rem; border: 1px solid var(--line); border-radius: 4px; background: var(--tile); color: var(--ink); width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea { min-height: 9rem; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { min-height: 1.3em; margin: 0; font-weight: 600; }
.form-msg.ok { color: var(--ok); } .form-msg.err { color: var(--danger); }
.req { color: var(--danger); }
label > .lbl { display: inline; }

/* footer */
.site-foot { background: var(--head-bg); color: var(--head-sub); padding: 3rem 0 1.5rem; margin-top: 0; }
.foot-cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.site-foot h4 { color: var(--head-ink); text-transform: uppercase; letter-spacing: .08em; font-size: .85rem; margin: 0 0 .8rem; }
.site-foot ul { list-style: none; margin: 0; padding: 0; } .site-foot li { margin: .35rem 0; }
.site-foot a { color: var(--head-sub); text-decoration: none; } .site-foot a:hover { color: var(--head-ink); text-decoration: underline; }
.foot-base { border-top: 1px solid rgba(255,255,255,.12); margin-top: 2rem; padding-top: 1rem; font-size: .85rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

/* legal / text pages */
.page-head { background: var(--hero-bg); color: var(--hero-ink); padding: 3rem 0 2.2rem; }
.page-head h1 { margin: 0 0 .3rem; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.page-head p { margin: 0; color: #c9cbce; }
.prose { max-width: 760px; margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }
.prose h2 { color: var(--accent-ink); margin: 2rem 0 .5rem; font-size: 1.3rem; }
.prose li { margin: .3rem 0; }
.prose table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .95rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: .5rem .6rem; text-align: left; vertical-align: top; }
.prose th { background: var(--soft); }
.notice { background: var(--accent-soft); border-left: 4px solid var(--accent); padding: .8rem 1rem; border-radius: 4px; }

@media (max-width: 900px) {
  .hero .wrap, .contact { grid-template-columns: 1fr; }
  .cards, .prices { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
  .foot-cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .menu-btn { display: inline-block; margin-left: auto; background: transparent; border: 1px solid var(--head-sub); color: var(--head-ink); border-radius: 4px; padding: .35rem .6rem; font: inherit; }
  .nav { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--head-bg); flex-direction: column; align-items: stretch; padding: .5rem 1rem 1rem; border-bottom: 2px solid var(--accent); }
  .nav.open { display: flex; }
  .nav .btn { margin: .4rem 0 0; }
  .features, .row2, .foot-cols { grid-template-columns: 1fr; }
  section { padding: 3.2rem 0; } .hero { padding: 3rem 0; }
}

/* binder pre-order dialog */
.modal { position: fixed; inset: 0; z-index: 50; background: rgba(43,45,48,.55); display: grid; place-items: center; padding: 1rem; overflow-y: auto; }
.modal[hidden] { display: none; }
.modal-box { position: relative; background: var(--tile); border-radius: 8px; box-shadow: 0 24px 60px rgba(0,0,0,.35); width: min(620px, 100%); padding: 1.5rem; max-height: calc(100vh - 2rem); overflow-y: auto; border-top: 4px solid var(--accent); }
.modal-box h3 { margin: 0 0 .5rem; font-size: 1.35rem; }
.modal-x { position: absolute; top: .6rem; right: .7rem; background: transparent; border: 0; font-size: 1.6rem; line-height: 1; cursor: pointer; color: var(--muted); }
.modal-actions { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1rem; flex-wrap: wrap; }
.muted-s { color: var(--muted); font-size: .9rem; margin: .2rem 0 .6rem; }
.fs { border: 1px solid var(--line); border-radius: 6px; padding: .6rem .9rem .9rem; margin: 0; display: grid; gap: .7rem; }
.fs legend { font-weight: 700; padding: 0 .3rem; }
body.modal-open { overflow: hidden; }