:root {
  --navy: #07172D; --navy2: #0a2344; --card: #0E2A4E; --cyan: #A4DFEB; --teal: #25AFC0;
  --green: #3DD68C; --fee: #FF7F57; --text2: #D3E3F3; --text3: #C9D8E8; --mut: #9FB6CF;
  --font: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans', Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
body { margin: 0; background: var(--navy); color: #fff; font: 500 16px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--cyan); }
a:hover { color: #fff; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
h1, h2, h3, p { margin: 0; }
.wrap { max-width: 1180px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: rgba(7, 23, 45, .93); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.top .wrap { display: flex; align-items: center; gap: 24px; padding-top: 12px; padding-bottom: 12px; }
.logo { font-size: 24px; font-weight: 800; letter-spacing: -.045em; color: #fff; text-decoration: none; }
.logo span { color: var(--cyan); }
.navlinks { display: flex; gap: 22px; font-size: 15px; font-weight: 600; }
.navlinks a { color: var(--text3); text-decoration: none; }
.navlinks a:hover { color: #fff; }
.navend { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px; border-radius: 999px; background: var(--cyan); color: var(--navy); font: 800 15px/1 var(--font); text-decoration: none; border: 0; cursor: pointer; white-space: nowrap; }
.btn:hover { background: #fff; color: var(--navy); }
.btn.ghost { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, .4); }
.btn.ghost:hover { border-color: #fff; }
.btn.big { min-height: 52px; padding: 0 26px; font-size: 17px; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* sections */
.band { padding: clamp(56px, 8vw, 96px) 0; }
.band.alt { background: var(--navy2); }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--cyan); }
.h2 { font-size: clamp(30px, 4vw, 46px); line-height: 1.08; font-weight: 800; letter-spacing: -.035em; }
.lead { font-size: 18px; line-height: 1.55; color: var(--text2); }
.small { font-size: 14px; line-height: 1.5; color: var(--mut); }
.split { display: flex; flex-wrap: wrap; gap: 48px; align-items: flex-start; }
.col { flex: 1 1 360px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.col.wide { flex: 1 1 500px; }

/* hero */
.hero { background: var(--navy2); border-bottom: 1px solid rgba(255, 255, 255, .06); }
.hero .split { align-items: center; gap: 56px; padding-top: clamp(48px, 8vw, 96px); padding-bottom: clamp(48px, 8vw, 96px); }
.hero .col { gap: 22px; flex-basis: 480px; }
h1 { font-size: clamp(40px, 6vw, 72px); line-height: 1.02; font-weight: 800; letter-spacing: -.045em; }
.g { color: var(--green); }
.o { color: var(--fee); }
.hero .lead { font-size: clamp(18px, 2vw, 21px); max-width: 560px; }
.ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.ticks { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 15px; color: var(--mut); font-weight: 600; }
.ticks li { display: flex; align-items: center; gap: 8px; }

.receipt-col { flex: 1 1 380px; min-width: 0; max-width: 460px; margin: 0 auto; }
.receipt { background: #fff; color: var(--navy); border-radius: 24px; padding: 26px; box-shadow: 0 30px 80px rgba(0, 0, 0, .45); display: flex; flex-direction: column; gap: 18px; }
.receipt .row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.receipt .lbl { font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: #4A5F78; }
.receipt .tag { font-size: 13px; font-weight: 700; color: #1F6E3F; background: #DFF7EA; padding: 5px 10px; border-radius: 999px; }
.receipt .trip { font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.price { border-radius: 16px; padding: 16px 18px; }
.price b { display: block; font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.price small { display: block; font-size: 15px; margin-top: 3px; }
.price strong { font-size: 30px; font-weight: 800; letter-spacing: -.03em; white-space: nowrap; }
.price.fare { background: #EAFBF2; } .price.fare b { color: #1F6E3F; } .price.fare small { color: #2C4A3A; } .price.fare strong { color: #157A45; }
.price.fee { background: #FFF0EA; } .price.fee b { color: #A33A16; } .price.fee small { color: #5A3A2E; } .price.fee strong { color: #B8401A; }
.receipt .total { border-top: 1px dashed #C5D2E0; padding-top: 14px; font-size: 16px; font-weight: 700; }
.receipt .total span:last-child { color: #157A45; }

/* calculator */
.panel { background: var(--card); border: 1px solid rgba(255, 255, 255, .14); border-radius: 24px; padding: clamp(20px, 3vw, 32px); display: flex; flex-direction: column; gap: 22px; }
.seg { display: inline-flex; align-self: flex-start; background: rgba(255, 255, 255, .08); border-radius: 999px; padding: 4px; gap: 4px; flex-wrap: wrap; }
.seg button { border: 0; min-height: 44px; padding: 0 18px; border-radius: 999px; font: 700 15px/1 var(--font); cursor: pointer; background: transparent; color: var(--text2); }
.seg button[aria-pressed="true"] { background: var(--cyan); color: var(--navy); }
.slider { display: flex; flex-direction: column; gap: 8px; font-size: 15px; font-weight: 600; color: var(--text2); }
.slider > span { display: flex; justify-content: space-between; gap: 12px; }
.slider output { color: var(--cyan); font-weight: 800; white-space: nowrap; }
input[type=range] { width: 100%; accent-color: var(--teal); height: 28px; margin: 0; }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.res { border-radius: 16px; padding: 16px; }
.res small { display: block; font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.res strong { display: block; font-size: 28px; font-weight: 800; letter-spacing: -.03em; margin-top: 6px; }
.res.them { background: rgba(255, 127, 87, .12); } .res.them small { color: #FFB49C; } .res.them strong { color: var(--fee); }
.res.us { background: rgba(61, 214, 140, .12); } .res.us small { color: #9BE8C2; } .res.us strong { color: var(--green); }
.save { border-radius: 16px; background: var(--cyan); color: var(--navy); padding: 18px 20px; display: flex; flex-direction: column; gap: 4px; }
.save .t { font-size: 14px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: #1D3A5C; }
.save .v { font-size: 20px; font-weight: 800; letter-spacing: -.02em; }

/* steps */
.stack { display: flex; flex-direction: column; gap: 36px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.steps li { background: var(--card); border: 1px solid rgba(255, 255, 255, .12); border-radius: 20px; padding: 26px; display: flex; flex-direction: column; gap: 12px; }
.num { width: 44px; height: 44px; border-radius: 50%; background: var(--cyan); color: var(--navy); font-weight: 800; font-size: 20px; display: flex; align-items: center; justify-content: center; }
.num.g { background: var(--green); }
.steps h3 { font-size: 22px; font-weight: 800; letter-spacing: -.02em; }
.steps p, .faq p { font-size: 16px; line-height: 1.55; color: var(--text3); }

/* form */
form.panel { gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 15px; font-weight: 600; color: var(--text2); }
.field input, .field select { font: 500 16px var(--font); min-height: 48px; padding: 0 14px; border-radius: 12px; border: 2px solid rgba(255, 255, 255, .22); background: var(--navy); color: #fff; width: 100%; }
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: var(--fee); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--text3); min-height: 44px; cursor: pointer; }
.check input { width: 22px; height: 22px; margin: 1px 0 0; accent-color: var(--teal); flex: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { padding: 14px 16px; border-radius: 12px; font-weight: 700; font-size: 15px; }
.msg.ok { background: rgba(61, 214, 140, .16); color: var(--green); }
.msg.bad { background: rgba(255, 127, 87, .16); color: #FF9C7D; }

/* faq */
.faq { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.faq > div { background: var(--card); border-radius: 20px; padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.faq h3 { font-size: 18px; font-weight: 800; }

footer { padding: 32px 0; border-top: 1px solid rgba(255, 255, 255, .08); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; font-size: 14px; }
footer .logo { font-size: 20px; }

@media (max-width: 760px) {
  .navlinks { display: none; }
  .top .wrap { gap: 12px; padding-left: 16px; padding-right: 16px; }
  .navend .btn { padding: 0 14px; font-size: 14px; }
  .wrap { padding-left: 18px; padding-right: 18px; }
  .pair { grid-template-columns: 1fr; }
}
@media (max-width: 440px) {
  .logo { font-size: 21px; }
  .top .wrap { gap: 8px; padding-left: 12px; padding-right: 12px; }
  .navend { gap: 6px; }
  .navend .btn { padding: 0 11px; font-size: 13px; }
}
@media (max-width: 340px) { .navend .btn.ghost { display: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
[hidden] { display: none !important; }
.stack > .col { flex: none; }