:root {
  --navy-950: #030a1c;
  --navy-900: #06122b;
  --navy-800: #0a1d44;
  --navy-700: #0f2a63;
  --blue-600: #1f5fe0;
  --blue-500: #2f7bff;
  --blue-400: #5aa2ff;
  --blue-300: #93c4ff;
  --ice: #e8f2ff;
  --yellow: #ffd23f;
  --yellow-600: #f2b705;
  --text: #f4f8ff;
  --muted: #a9bcdc;
  --line: rgba(147, 196, 255, 0.16);
  --glass: rgba(16, 42, 99, 0.45);
  --radius: 18px;
  --display: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: var(--body);
  color: var(--text);
  background: var(--navy-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; }
a { color: inherit; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  font: 700 1rem/1 var(--display);
  padding: 1rem 1.4rem; border-radius: 999px; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn svg { width: 1.15em; height: 1.15em; }
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid var(--blue-300); outline-offset: 3px; }
.btn-yellow { background: var(--yellow); color: var(--navy-900); box-shadow: 0 10px 30px -10px rgba(255, 210, 63, .6); }
.btn-yellow:hover { background: #ffdc66; box-shadow: 0 14px 34px -10px rgba(255, 210, 63, .75); }
.btn-ghost { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.22); color: var(--text); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-sm { padding: .7rem 1.1rem; font-size: .92rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; transform: none; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 18, 43, .72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 900 1.25rem/1 var(--display); letter-spacing: .02em; }
.brand-mark { width: 38px; height: 26px; color: var(--blue-400); }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 500; font-size: .95rem; transition: color .15s; }
.nav-links a:hover { color: #fff; }
@media (max-width: 760px) { .nav-links { display: none; } .nav-inner .btn { margin-left: auto; } }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  padding: clamp(72px, 12vw, 140px) 0 clamp(150px, 18vw, 230px);
  background:
    radial-gradient(1200px 600px at 75% -10%, rgba(47, 123, 255, .45), transparent 60%),
    radial-gradient(800px 500px at 0% 30%, rgba(31, 95, 224, .35), transparent 60%),
    linear-gradient(180deg, var(--navy-950) 0%, var(--navy-800) 70%, var(--navy-700) 100%);
}
.hero-glow {
  position: absolute; inset: auto -10% 10% -10%; height: 340px; z-index: -1;
  background: radial-gradient(closest-side, rgba(90, 162, 255, .35), transparent);
  filter: blur(30px);
}
.stars {
  position: absolute; inset: 0; z-index: -1; opacity: .55;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 20%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 8%, #fff 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 44% 26%, #cfe3ff 50%, transparent 51%),
    radial-gradient(1px 1px at 63% 12%, #fff 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 81% 30%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 92% 6%, #cfe3ff 50%, transparent 51%),
    radial-gradient(1px 1px at 6% 44%, #fff 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 55% 40%, #fff 50%, transparent 51%);
}
.hero-inner { position: relative; max-width: 820px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 22px;
  padding: 7px 14px 7px 10px; border-radius: 999px;
  background: rgba(255,255,255,.07); border: 1px solid var(--line);
  font-size: .9rem; font-weight: 600; color: var(--ice);
}
.eyebrow svg { width: 18px; height: 18px; color: var(--yellow); }
h1, h2, h3 { font-family: var(--display); line-height: 1.05; margin: 0; letter-spacing: -.01em; }
.hero h1 {
  font-size: clamp(2.8rem, 8vw, 5.6rem); font-weight: 900; text-transform: uppercase;
  text-shadow: 0 6px 40px rgba(47, 123, 255, .45);
}
.grad {
  background: linear-gradient(92deg, #fff 0%, var(--blue-300) 45%, var(--blue-400) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--muted); max-width: 640px; margin: 24px 0 34px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-chips { list-style: none; padding: 0; margin: 40px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-chips li {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 12px;
  background: var(--glass); border: 1px solid var(--line);
  font-size: .92rem; font-weight: 500; color: var(--ice);
}
.hero-chips svg { width: 18px; height: 18px; color: var(--blue-300); }

.mountains { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: clamp(120px, 18vw, 260px); z-index: -1; }
.m1 { fill: #183a80; opacity: .75; }
.m-snow { fill: #e8f2ff; opacity: .85; }
.m2 { fill: #0c2457; }
.m3 { fill: var(--navy-900); }

/* ---------- sections ---------- */
.section { padding: clamp(64px, 9vw, 110px) 0; position: relative; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.kicker { margin: 0 0 10px; font: 800 .82rem/1 var(--display); letter-spacing: .16em; text-transform: uppercase; color: var(--blue-400); }
.section h2 { font-size: clamp(2rem, 4.6vw, 3.2rem); font-weight: 900; }
.section h2 em { font-style: italic; color: var(--yellow); }
.section-head p:not(.kicker) { color: var(--muted); font-size: 1.08rem; margin: 14px 0 0; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1100px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .cards { grid-template-columns: 1fr; } }
.card {
  position: relative; padding: 28px 26px 30px; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(31, 95, 224, .22), rgba(10, 29, 68, .6) 55%);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 20px 50px -30px rgba(0,0,0,.8);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(147, 196, 255, .38); box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 26px 60px -28px rgba(47, 123, 255, .55); }
.card-feature { background: linear-gradient(160deg, rgba(47, 123, 255, .42), rgba(10, 29, 68, .7) 60%); border-color: rgba(147, 196, 255, .3); }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px;
  background: linear-gradient(145deg, var(--blue-500), var(--blue-600)); box-shadow: 0 10px 24px -8px rgba(47,123,255,.7);
}
.card-icon svg { width: 28px; height: 28px; color: #fff; }
.card h3 { font-size: 1.4rem; font-weight: 800; }
.card-tag { margin: 6px 0 18px; color: var(--yellow); font: italic 800 .98rem/1.3 var(--display); }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checks li { display: flex; gap: 10px; align-items: flex-start; color: var(--ice); font-size: .98rem; line-height: 1.4; }
.checks svg { flex: none; width: 20px; height: 20px; color: var(--blue-500); margin-top: 1px; }

/* why band */
.section-band {
  padding: 44px 0;
  background: linear-gradient(90deg, rgba(31,95,224,.18), rgba(31,95,224,.32), rgba(31,95,224,.18));
  border-block: 1px solid var(--line);
}
.why { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 26px; }
.why li { display: flex; gap: 14px; align-items: flex-start; }
.why-ic { flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.08); border: 1px solid var(--line); }
.why-ic svg { width: 24px; height: 24px; color: var(--blue-300); }
.why h3 { font-size: 1.08rem; font-weight: 800; }
.why p { margin: 4px 0 0; color: var(--muted); font-size: .94rem; line-height: 1.45; }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; counter-reset: s; }
.steps li { padding: 28px; border-radius: var(--radius); background: rgba(255,255,255,.035); border: 1px solid var(--line); }
.step-n {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; margin-bottom: 16px;
  font: 900 1.2rem/1 var(--display); color: var(--navy-900); background: var(--yellow);
}
.steps h3 { font-size: 1.3rem; font-weight: 800; }
.steps p { margin: 8px 0 0; color: var(--muted); }

/* contact */
.contact-section {
  background:
    radial-gradient(700px 400px at 90% 10%, rgba(47,123,255,.25), transparent 60%),
    linear-gradient(180deg, var(--navy-900), var(--navy-950));
}
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info h2 { margin-bottom: 18px; }
.contact-info > p:not(.kicker) { color: var(--muted); font-size: 1.08rem; }
.contact-info strong { color: #fff; }
.direct { display: grid; gap: 12px; margin-top: 30px; }
.direct-item {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; text-decoration: none;
  background: rgba(255,255,255,.04); border: 1px solid var(--line); transition: background .15s, border-color .15s;
}
a.direct-item:hover { background: rgba(255,255,255,.08); border-color: rgba(147,196,255,.35); }
.direct-ic { flex: none; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(47,123,255,.2); }
.direct-ic svg { width: 22px; height: 22px; color: var(--blue-300); }
.direct-item small { display: block; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }
.direct-item strong { font: 800 1.12rem/1.3 var(--display); word-break: break-word; }

.form {
  padding: clamp(24px, 4vw, 36px); border-radius: 22px;
  background: linear-gradient(165deg, rgba(31,95,224,.28), rgba(10,29,68,.85) 50%);
  border: 1px solid rgba(147,196,255,.24);
  box-shadow: 0 30px 80px -40px rgba(47,123,255,.6);
}
.form h3 { font-size: 1.6rem; font-weight: 900; }
.form-sub { margin: 6px 0 22px; color: var(--muted); }
.row { margin-bottom: 14px; }
.row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .row.two { grid-template-columns: 1fr; } }
.form label { display: grid; gap: 6px; font-size: .86rem; font-weight: 600; color: var(--ice); }
.form input, .form select, .form textarea {
  width: 100%; font: 400 1rem/1.4 var(--body); color: var(--text);
  padding: 12px 14px; border-radius: 12px;
  background: rgba(3, 10, 28, .55); border: 1px solid rgba(147,196,255,.22);
  transition: border-color .15s, box-shadow .15s;
}
.form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--blue-300) 50%), linear-gradient(135deg, var(--blue-300) 50%, transparent 50%); background-position: calc(100% - 20px) 52%, calc(100% - 14px) 52%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 36px; }
.form select option { background: var(--navy-800); }
.form textarea { resize: vertical; min-height: 120px; }
.form input::placeholder, .form textarea::placeholder { color: #6f86ad; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--blue-400); box-shadow: 0 0 0 4px rgba(90,162,255,.2); }
.form input[aria-invalid="true"], .form textarea[aria-invalid="true"] { border-color: #ff7a7a; }
.form .btn { margin-top: 8px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { min-height: 1.5em; margin: 14px 0 0; font-weight: 600; text-align: center; }
.form-status.ok { color: #7cf0a8; }
.form-status.err { color: #ff9a9a; }
.form.sent .row, .form.sent .btn { display: none; }
.form.sent .form-status { font-size: 1.15rem; padding: 30px 0; }

/* footer */
.footer { padding: 34px 0; border-top: 1px solid var(--line); background: var(--navy-950); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; justify-content: space-between; }
.footer p { margin: 0; color: var(--muted); font-size: .92rem; }
.footer .copy { opacity: .7; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card { transition: none; }
}