/* Heliovo landing — tokens match the Heliovo client app (amber + teal on deep navy). */
:root {
  color-scheme: dark;
  --bg: #071118;
  --bg-2: #0d1a22;
  --bg-3: #13242f;
  --line: #1f3340;
  --text: #eef3f6;
  --text-2: #b2c1ca;
  --muted: #7c8f9b;
  --accent: #f5a524;
  --accent-strong: #ffb84a;
  --accent-contrast: #061018;
  --accent-2: #2ec4b6;
  --glow: rgba(245, 165, 36, .16);
  --glow-2: rgba(46, 196, 182, .14);
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, .7);
  --font-body: 'Manrope', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Syne', 'Manrope', ui-sans-serif, system-ui, sans-serif;
  --radius: 18px;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f1f5f7;
    --bg-2: #ffffff;
    --bg-3: #e7eef2;
    --line: #d5e0e6;
    --text: #0c1a22;
    --text-2: #3a4d58;
    --muted: #61737e;
    --accent: #c97f06;
    --accent-strong: #b06f00;
    --accent-contrast: #ffffff;
    --accent-2: #138078;
    --glow: rgba(201, 127, 6, .12);
    --glow-2: rgba(19, 128, 120, .1);
    --shadow: 0 30px 70px -35px rgba(12, 26, 34, .35);
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 4.4vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }
main:focus { outline: none; }

.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-contrast); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
.eyebrow { color: var(--accent-2); font-weight: 700; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1.1em; }
.lead { color: var(--text-2); font-size: clamp(1.05rem, 1.6vw, 1.22rem); max-width: 62ch; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  background: var(--accent); color: var(--accent-contrast);
  font: 700 .98rem/1 var(--font-body); text-decoration: none;
  padding: 15px 24px; border-radius: 999px; border: 1px solid transparent; cursor: pointer;
  transition: background .2s, transform .2s;
}
.btn:hover { background: var(--accent-strong); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn--ghost:hover { background: var(--bg-3); }
.btn--small { padding: 10px 18px; font-size: .9rem; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 800 1.3rem var(--font-display); }
.brand__mark { width: 30px; height: 30px; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a:not(.btn) { color: var(--text-2); text-decoration: none; font-weight: 600; font-size: .95rem; }
.nav__links a:not(.btn):hover, .nav__links a[aria-current="page"] { color: var(--text); }
.nav__links a[aria-current="page"] { box-shadow: inset 0 -2px var(--accent); }
.nav__toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav__toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .2s; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 9vw, 110px) 0 clamp(48px, 7vw, 90px); }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 70%; height: 140%;
  background: radial-gradient(closest-side, var(--glow), transparent 70%), radial-gradient(closest-side at 30% 70%, var(--glow-2), transparent 70%);
  pointer-events: none;
}
.hero__grid { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* App mock */
.mock {
  display: grid; grid-template-columns: 52px 150px 1fr; min-height: 380px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  box-shadow: var(--shadow); font-size: .8rem; transform: perspective(1400px) rotateY(-6deg) rotateX(2deg);
}
.mock__rail { background: var(--bg); display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 14px 0; }
.mock__space { width: 34px; height: 34px; border-radius: 12px; display: grid; place-items: center; background: var(--bg-3); color: var(--text-2); font-weight: 800; }
.mock__space--on { background: var(--accent); color: var(--accent-contrast); }
.mock__space--add { color: var(--accent-2); }
.mock__side { background: color-mix(in srgb, var(--bg-2) 70%, var(--bg)); padding: 16px 12px; border-right: 1px solid var(--line); }
.mock__label { color: var(--muted); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; margin: 6px 0 6px; font-weight: 700; }
.mock__chan { margin: 0 0 3px; padding: 5px 8px; border-radius: 7px; color: var(--text-2); }
.mock__chan--on { background: var(--bg-3); color: var(--text); }
.mock__chan--voice b { float: right; color: var(--accent-2); }
.mock__main { padding: 14px; display: flex; flex-direction: column; gap: 9px; }
.mock__call { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 4px; }
.mock__tile { position: relative; height: 82px; border-radius: 12px; background: linear-gradient(140deg, var(--bg-3), color-mix(in srgb, var(--accent-2) 22%, var(--bg-3))); }
.mock__tile--b { background: linear-gradient(140deg, var(--bg-3), color-mix(in srgb, var(--accent) 25%, var(--bg-3))); }
.mock__tile--speak { box-shadow: 0 0 0 2px var(--accent-2); }
.mock__tile span { position: absolute; left: 8px; bottom: 6px; font-size: .68rem; font-weight: 700; background: rgba(0,0,0,.45); color: #fff; padding: 2px 7px; border-radius: 6px; }
.mock__tile--share { grid-column: 1 / -1; height: 74px; background: var(--bg); border: 1px solid var(--line); padding: 12px 12px 0; }
.mock__tile--share i { display: block; height: 6px; border-radius: 3px; background: var(--line); margin-bottom: 7px; }
.mock__tile--share i:nth-of-type(1) { width: 80%; background: color-mix(in srgb, var(--accent-2) 50%, var(--line)); }
.mock__tile--share i:nth-of-type(2) { width: 60%; }
.mock__tile--share i:nth-of-type(3) { width: 70%; }
.mock__tile--share span { top: 6px; bottom: auto; right: 8px; left: auto; }
.mock__msg { display: flex; flex-direction: column; line-height: 1.4; }
.mock__msg b { color: var(--text); font-size: .76rem; }
.mock__msg span { color: var(--text-2); }
.mock__input { margin-top: auto; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 9px 12px; color: var(--muted); }

/* Home sections */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pillar { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.pillar--alt { background: linear-gradient(160deg, color-mix(in srgb, var(--accent-2) 12%, var(--bg-2)), var(--bg-2) 60%); }
.pillar p { color: var(--text-2); }
.more { font-weight: 700; text-decoration: none; }
.more:hover { text-decoration: underline; }

.block { padding: clamp(56px, 8vw, 96px) 0 0; }
.block__title { margin-bottom: 28px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.steps li { counter-increment: s; border-top: 2px solid var(--line); padding-top: 18px; display: flex; flex-direction: column; gap: 6px; }
.steps li::before { content: "0" counter(s); font: 700 .8rem var(--font-display); color: var(--accent); }
.steps b { font-family: var(--font-display); font-size: 1.15rem; }
.steps span { color: var(--text-2); font-size: .95rem; }

.band {
  margin: clamp(56px, 8vw, 96px) 0; padding: 40px clamp(24px, 4vw, 48px);
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  border-radius: 24px; border: 1px solid var(--line);
  background: radial-gradient(120% 140% at 0% 0%, var(--glow), transparent 60%), var(--bg-2);
}
.band h2 { margin-bottom: .25em; }
.band p { color: var(--text-2); margin: 0; }
.band__cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Inner pages */
.page { padding-top: clamp(48px, 7vw, 88px); }
.page__head { max-width: 820px; margin-bottom: 48px; }
.page--center { text-align: center; min-height: 50vh; display: flex; flex-direction: column; align-items: center; justify-content: center; }

.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature__icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--bg-3); color: var(--accent); font-weight: 800; margin-bottom: 16px; }
.feature p { color: var(--text-2); font-size: .94rem; margin: 0; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: start; margin-top: clamp(48px, 7vw, 88px); }
.split--text { margin-top: 0; grid-template-columns: 1.5fr 1fr; }
.split p, .prose p { color: var(--text-2); }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.checks li { position: relative; padding: 14px 16px 14px 46px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; }
.checks li::before { content: "✓"; position: absolute; left: 16px; top: 13px; color: var(--accent-2); font-weight: 800; }

.services { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.service { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.service__num { font: 700 .82rem var(--font-display); color: var(--accent); display: block; margin-bottom: 12px; }
.service p { color: var(--text-2); }
.service ul { margin: 0; padding-left: 1.1em; color: var(--text-2); font-size: .95rem; }
.service li::marker { color: var(--accent-2); }

.models { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.model { border-top: 2px solid var(--accent-2); padding-top: 18px; }
.model p { color: var(--text-2); }

.facts { margin: 0; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 24px; }
.facts div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.facts div:last-child { border-bottom: 0; }
.facts dt { color: var(--muted); font-size: .9rem; }
.facts dd { margin: 0; font-weight: 700; text-align: right; }

/* Contact */
.split:has(.form) { margin-top: 0; grid-template-columns: 1.4fr 1fr; }
.form { display: grid; gap: 18px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(22px, 4vw, 34px); }
.form label { display: grid; gap: 8px; font-weight: 700; font-size: .92rem; }
.form small { color: var(--muted); font-weight: 500; }
.form input, .form select, .form textarea {
  font: inherit; font-weight: 500; color: var(--text); background: var(--bg); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 14px; width: 100%;
}
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--accent-2); box-shadow: 0 0 0 3px var(--glow-2); }
.form [aria-invalid="true"] { border-color: #e5484d; }
.form .btn { justify-self: start; }
.form__note { color: var(--muted); font-size: .88rem; margin: 0; }
.form__note--error { color: #e5484d; }
.contact-card { padding: 8px 0; }
.contact-card p { color: var(--text-2); }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 36px 0; margin-top: 40px; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer__brand { font: 800 1.1rem var(--font-display); margin: 0; }
.footer__small { color: var(--muted); font-size: .88rem; margin: 0; }
.footer nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer nav a { color: var(--text-2); text-decoration: none; font-size: .92rem; }
.footer nav a:hover { color: var(--text); }

/* View transitions */
.view:not([hidden]) { animation: rise .35s ease both; }
@keyframes rise { from { transform: translateY(8px); } to { transform: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } .mock { transform: none; } }

/* Responsive */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .mock { transform: none; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .split, .split--text, .split:has(.form) { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: absolute; left: 0; right: 0; top: 70px; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 16px 18px; display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav__links a[aria-current="page"] { box-shadow: none; color: var(--accent); }
  .nav__links .btn { margin-top: 14px; }
  .pillars, .services, .models, .features, .steps { grid-template-columns: 1fr; }
  .mock { grid-template-columns: 44px 1fr; }
  .mock__side { display: none; }
  .band { flex-direction: column; align-items: flex-start; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}