/* Alt Technology. Shares the Altitude family tokens: navy leads, cyan signals, blue for interaction. */
/* Fonts are served from this site (SIL Open Font License, see OFL-*.txt), so no request goes to Google. */
@font-face { font-family: "Inter"; src: url("/inter-latin-wght-normal.woff2") format("woff2"); font-weight: 100 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Montserrat"; src: url("/montserrat-latin-wght-normal.woff2") format("woff2"); font-weight: 100 900; font-style: normal; font-display: swap; }
:root {
  --navy: #082545;
  --navy-deep: #051a32;
  --navy-soft: #123a63;
  --blue: #0F6FFF;
  --blue-dark: #0a58d0;
  --cyan: #22C7F0;
  --cloud: #E8EEF4;
  --white: #FFFFFF;
  --ink: #0b2240;
  --ink-soft: #46607d;
  --line: #d5dfea;
  --on-dark: #e9f1f9;
  --on-dark-soft: #a8bdd3;
  --heading: "Montserrat", Arial, sans-serif;
  --body: "Inter", Arial, sans-serif;
  --radius: 18px;
  --shadow: 0 24px 60px -24px rgba(5, 26, 50, .45);
  --wrap: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; font: 400 1.0625rem/1.6 var(--body); color: var(--ink); background: var(--white); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; display: block; }
a { color: var(--blue-dark); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3, h4 { font-family: var(--heading); font-weight: 700; line-height: 1.12; letter-spacing: -.015em; margin: 0 0 .5em; color: var(--navy); }
h1 { font-size: clamp(2.3rem, 5.4vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
.wrap { width: min(var(--wrap), 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--white); color: var(--navy); padding: 10px 14px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 16px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 600 .78rem/1 var(--body); letter-spacing: .16em; text-transform: uppercase; color: var(--blue-dark); margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 22px; height: 3px; border-radius: 3px; background: var(--cyan); }
.dark .eyebrow, .hero .eyebrow, .page-hero .eyebrow, .cta .eyebrow { color: var(--cyan); }
.lead { font-size: clamp(1.08rem, 1.6vw, 1.25rem); color: var(--ink-soft); max-width: 640px; }
.dark .lead, .hero .lead, .page-hero .lead { color: var(--on-dark-soft); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; font: 600 1rem/1 var(--body); padding: 16px 24px; border-radius: 999px; text-decoration: none; border: 2px solid transparent; transition: transform .15s ease, background .15s ease, border-color .15s ease; cursor: pointer; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-light { background: var(--white); color: var(--navy); }
.btn-ghost { border-color: rgba(255, 255, 255, .35); color: var(--white); }
.btn-ghost:hover { border-color: var(--cyan); }
.btn-outline { border-color: var(--line); color: var(--navy); }
.btn-outline:hover { border-color: var(--blue); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 40; background: rgba(8, 37, 69, .92); backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 76px; }
.brand img { width: 150px; height: auto; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a { color: var(--on-dark); text-decoration: none; font-weight: 500; font-size: .97rem; padding: 10px 14px; border-radius: 999px; }
.nav a:hover, .nav a[aria-current="page"] { background: rgba(255, 255, 255, .08); color: var(--white); }
.nav .nav-phone { color: var(--cyan); font-weight: 600; }
.nav .btn { margin-left: 8px; padding: 12px 20px; }
.nav-toggle { display: none; background: none; border: 1px solid rgba(255, 255, 255, .25); color: var(--white); border-radius: 12px; padding: 10px 12px; font: 600 .9rem var(--body); }
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 76px; flex-direction: column; align-items: stretch; padding: 12px 16px 20px; background: var(--navy); border-bottom: 1px solid rgba(255, 255, 255, .1); }
  .nav.open { display: flex; }
  .nav a { padding: 14px 16px; }
  .nav .btn { margin: 8px 0 0; justify-content: center; }
}

/* Hero */
.hero { position: relative; overflow: hidden; color: var(--on-dark); background: radial-gradient(90% 120% at 85% 10%, #0f4f9c 0%, var(--navy) 55%, var(--navy-deep) 100%); padding: clamp(64px, 9vw, 120px) 0 clamp(80px, 10vw, 140px); }
.hero::before { content: ""; position: absolute; inset: 0; background: url("/peaks.svg") right bottom / min(1100px, 120%) auto no-repeat; opacity: .9; pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { color: var(--white); }
.hero h1 .signal { color: var(--cyan); }
.hero .lead { margin-bottom: 32px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 28px 0 0; padding: 0; list-style: none; color: var(--on-dark-soft); font-size: .95rem; }
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.hero-points li::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--cyan); }
@media (max-width: 960px) { .hero .wrap { grid-template-columns: 1fr; } }

/* Product preview cards */
.preview { position: relative; display: grid; gap: 16px; }
.card-ui { background: rgba(255, 255, 255, .97); color: var(--ink); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.card-ui header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.card-ui .who { display: flex; align-items: center; gap: 12px; }
.avatar { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--cloud); color: var(--navy); font: 700 .9rem var(--heading); }
.who strong { display: block; font: 700 .98rem/1.2 var(--heading); color: var(--navy); }
.who span, .meta { font-size: .82rem; color: var(--ink-soft); }
.tag { font: 600 .74rem/1 var(--body); padding: 7px 10px; border-radius: 999px; background: #e3f7fd; color: #075c75; white-space: nowrap; }
.tag.blue { background: #e6efff; color: var(--blue-dark); }
.summary { margin: 0 0 14px; font-size: .95rem; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: .9rem; }
.checks li { display: flex; gap: 10px; align-items: flex-start; }
.checks li::before { content: ""; flex: none; width: 18px; height: 18px; margin-top: 2px; border-radius: 6px; background: var(--cyan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%23082545' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.metric { background: var(--cloud); border-radius: 12px; padding: 12px; }
.metric b { display: block; font: 800 1.35rem/1.1 var(--heading); color: var(--navy); }
.metric span { font-size: .76rem; color: var(--ink-soft); }
.bars { display: flex; align-items: flex-end; gap: 6px; height: 86px; padding-top: 6px; border-bottom: 1px solid var(--line); }
.bars i { flex: 1; border-radius: 6px 6px 2px 2px; background: linear-gradient(180deg, var(--cyan), var(--blue)); opacity: .9; }
.bars-labels { display: flex; justify-content: space-between; font-size: .7rem; color: var(--ink-soft); margin-top: 6px; }
.preview .float { width: 86%; justify-self: end; }
.preview .float-left { width: 88%; }
.sample-note { font-size: .75rem; color: var(--on-dark-soft); text-align: right; margin: 2px 4px 0; }
@media (max-width: 560px) { .preview .float, .preview .float-left { width: 100%; } .metrics { grid-template-columns: repeat(3, 1fr); } }

/* Sections */
section { padding: clamp(64px, 8vw, 112px) 0; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .lead { margin-inline: auto; }
.cloud { background: var(--cloud); }
.dark { background: var(--navy); color: var(--on-dark); }
.dark h2, .dark h3 { color: var(--white); }
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1020px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.tile { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.tile:hover { transform: translateY(-3px); box-shadow: 0 22px 44px -28px rgba(8, 37, 69, .5); border-color: #b9cbe0; }
.tile p { color: var(--ink-soft); margin: 0; }
.tile ul { margin: 14px 0 0; padding-left: 18px; color: var(--ink-soft); }
.tile ul li { margin-bottom: 4px; }
.icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--navy); margin-bottom: 20px; }
.icon svg { width: 26px; height: 26px; stroke: var(--cyan); fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.dark .tile { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .1); }
.dark .tile p, .dark .tile ul { color: var(--on-dark-soft); }
.dark .icon { background: rgba(34, 199, 240, .12); }

/* Feature split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.split.reverse > :first-child { order: 2; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } .split.reverse > :first-child { order: 0; } }
.feature-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 18px; }
.feature-list li { display: grid; grid-template-columns: 40px 1fr; gap: 14px; }
.feature-list .dot { width: 40px; height: 40px; border-radius: 12px; background: rgba(34, 199, 240, .14); display: grid; place-items: center; }
.feature-list .dot svg { width: 20px; height: 20px; stroke: var(--cyan); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cloud .feature-list .dot, .feature-list.light .dot { background: var(--navy); }
.feature-list strong { display: block; font: 700 1.02rem/1.3 var(--heading); color: var(--navy); margin-bottom: 2px; }
.dark .feature-list strong { color: var(--white); }
.feature-list span { color: var(--ink-soft); }
.dark .feature-list span { color: var(--on-dark-soft); }

/* Integration chips */
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.chip { padding: 10px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--white); font-weight: 600; font-size: .92rem; color: var(--navy); }
.dark .chip { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .14); color: var(--on-dark); }
.hub { position: relative; aspect-ratio: 1; max-width: 460px; margin-inline: auto; }
.hub svg { width: 100%; height: auto; }

/* Steps */
.steps { counter-reset: step; }
.step { position: relative; padding-top: 60px; }
.step::before { counter-increment: step; content: "0" counter(step); position: absolute; top: 0; left: 0; font: 800 2.4rem/1 var(--heading); color: transparent; -webkit-text-stroke: 1.5px var(--blue); }
.step p { color: var(--ink-soft); }

/* Pricing */
.price-card { display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); border-radius: 22px; padding: 32px; }
.price-card.featured { border: 2px solid var(--blue); box-shadow: 0 30px 60px -36px rgba(15, 111, 255, .55); }
.price { font: 800 2.8rem/1 var(--heading); color: var(--navy); margin: 16px 0 6px; }
.price small { font: 500 1rem var(--body); color: var(--ink-soft); }
.price-card ul { list-style: none; padding: 0; margin: 22px 0 28px; display: grid; gap: 10px; flex: 1; }
.price-card li { display: flex; gap: 10px; color: var(--ink-soft); }
.price-card li::before { content: "✓"; color: var(--blue); font-weight: 700; }
.fine { font-size: .9rem; color: var(--ink-soft); }

/* CTA band */
.cta { position: relative; overflow: hidden; border-radius: 28px; padding: clamp(36px, 6vw, 72px); color: var(--on-dark); background: linear-gradient(115deg, var(--navy) 0%, #0b3f7a 60%, var(--blue) 130%); }
.cta::after { content: ""; position: absolute; right: -60px; bottom: -40px; width: 420px; height: 320px; background: url("/alt_symbol_reverse.svg") center / contain no-repeat; opacity: .08; }
.cta h2 { color: var(--white); max-width: 640px; }
.cta p { color: var(--on-dark-soft); max-width: 560px; }
.cta .phone-big { display: inline-block; font: 800 clamp(1.6rem, 3.6vw, 2.4rem)/1.1 var(--heading); color: var(--cyan); text-decoration: none; margin: 6px 0 24px; }

/* Page header (inner pages) */
.page-hero { color: var(--on-dark); background: radial-gradient(80% 140% at 90% 0%, #0f4f9c 0%, var(--navy) 60%); padding: clamp(56px, 7vw, 96px) 0 clamp(48px, 6vw, 80px); }
.page-hero h1 { color: var(--white); font-size: clamp(2.1rem, 4.6vw, 3.3rem); }

/* Contact */
.contact-card { background: var(--white); border: 1px solid var(--line); border-radius: 22px; padding: 32px; }
.contact-line { display: flex; gap: 16px; align-items: center; padding: 18px 0; border-top: 1px solid var(--line); }
.contact-line:first-of-type { border-top: 0; }
.contact-line a { font: 700 1.25rem var(--heading); color: var(--navy); text-decoration: none; }
.contact-line a:hover { color: var(--blue-dark); }
.contact-line small { display: block; color: var(--ink-soft); font-size: .85rem; }

/* Legal */
.legal { max-width: 780px; }
.legal h2 { font-size: 1.35rem; margin-top: 2em; }
.legal p, .legal li { color: #2c4664; }
.legal .updated { color: var(--ink-soft); font-size: .92rem; }
.notice { border-left: 4px solid var(--cyan); background: var(--cloud); padding: 18px 22px; border-radius: 0 14px 14px 0; margin: 24px 0; }

/* Footer */
.site-footer { background: var(--navy-deep); color: var(--on-dark-soft); padding: 64px 0 32px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer img { width: 180px; margin-bottom: 12px; }
.site-footer h4 { color: var(--white); font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: var(--on-dark); text-decoration: none; }
.site-footer a:hover { color: var(--cyan); }
.site-footer address { font-style: normal; }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 48px; padding-top: 24px; font-size: .85rem; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }