:root {
  --bg-main: #f6f8fb;
  --bg-alt: #edf2f7;
  --bg-header: #101827;
  --bg-dark: #0b1120;
  --text-main: #172033;
  --text-muted: #667085;
  --text-soft: #98a2b3;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-soft: #dbeafe;
  --border-soft: #e4e7ec;
  --card-bg: #ffffff;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --header-height: 74px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 20px); }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--bg-main);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea { font: inherit; }

.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading h2, .trial-layout h2, .contact-layout h2 { margin: 8px 0 12px; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.12; letter-spacing: -0.03em; }
.section-heading p { margin: 0; color: var(--text-muted); font-size: 1.05rem; }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; color: var(--accent); }
.muted { color: var(--text-soft); }

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: var(--header-height);
  background: rgba(16, 24, 39, .98);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 8px 26px rgba(15,23,42,.14);
}
.nav-container { min-height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.logo { display: flex; flex-direction: column; text-decoration: none; line-height: 1.08; }
.logo-main { font-weight: 800; font-size: 1.18rem; letter-spacing: .02em; }
.logo-sub { margin-top: 5px; font-size: .71rem; color: #aeb8c8; letter-spacing: .08em; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 24px; }
.nav a { color: #dbe3ef; text-decoration: none; font-size: .93rem; font-weight: 600; transition: color .2s ease; }
.nav a:hover, .nav a:focus-visible { color: #fff; }
.nav-toggle { display: none; border: 1px solid rgba(255,255,255,.18); background: transparent; color: #fff; border-radius: 10px; padding: 7px 10px; cursor: pointer; }

.hero { padding: 96px 0 80px; background: radial-gradient(circle at 80% 20%, rgba(37,99,235,.11), transparent 30%), linear-gradient(180deg,#fff 0%,var(--bg-main) 100%); }
.hero-content { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(340px, .75fr); gap: 54px; align-items: center; }
.hero-text h1 { margin: 10px 0 18px; max-width: 820px; font-size: clamp(2.8rem, 6vw, 5.1rem); line-height: 1.01; letter-spacing: -.055em; }
.lead { max-width: 760px; margin: 0; color: var(--text-muted); font-size: clamp(1.08rem, 2vw, 1.25rem); }
.lead-small { color: var(--text-muted); font-size: 1.06rem; }
.hero-actions, .center-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-points { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }
.hero-points span { padding: 7px 11px; border: 1px solid var(--border-soft); border-radius: 999px; background: rgba(255,255,255,.7); color: #475467; font-size: .84rem; font-weight: 700; }
.hero-side { display: grid; gap: 16px; }
.hero-card, .card { background: var(--card-bg); border: 1px solid var(--border-soft); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-card { padding: 26px; }
.hero-card-main { border-color: #bfdbfe; }
.hero-card h2 { margin: 10px 0 8px; font-size: 1.35rem; }
.hero-card p { margin: 0 0 14px; color: var(--text-muted); }
.badge { display: inline-flex; padding: 5px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 18px; border-radius: 11px; border: 1px solid transparent; text-decoration: none; font-size: .94rem; font-weight: 750; cursor: pointer; transition: transform .15s ease, background .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); }
.btn.secondary { background: #fff; color: var(--text-main); border-color: var(--border-soft); }
.btn.secondary:hover { border-color: #b9c4d6; }
.link { color: var(--accent); text-decoration: none; font-weight: 750; }
.link:hover { text-decoration: underline; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card { padding: 26px; }
.card h3 { margin: 0 0 9px; font-size: 1.26rem; }
.card p { margin: 0 0 14px; color: var(--text-muted); }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--text-muted); }
.card-disabled { opacity: .78; box-shadow: none; }
.product-card { position: relative; overflow: hidden; }
.card-icon { width: 44px; height: 44px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 12px; background: #eef4ff; color: var(--accent); font-size: .82rem; font-weight: 900; letter-spacing: .04em; }
.featured-card { border-color: #93c5fd; box-shadow: 0 18px 46px rgba(37,99,235,.13); }

.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.feature { padding: 22px; border: 1px solid rgba(152,162,179,.28); border-radius: 15px; background: rgba(255,255,255,.55); }
.feature h3 { margin: 0 0 8px; font-size: 1.08rem; }
.feature p { margin: 0; color: var(--text-muted); }

.compare-section { background: #fff; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.compare-column { padding: 30px; border: 1px solid var(--border-soft); border-radius: var(--radius); background: #f9fafb; }
.compare-column h3 { margin-top: 0; font-size: 1.25rem; }
.compare-highlight { background: #f0f6ff; border-color: #bfdbfe; }
.check-list { list-style: none; padding: 0; margin: 16px 0 0; }
.check-list li { position: relative; padding-left: 25px; margin: 10px 0; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 900; }
.muted-list li::before { content: "—"; color: #98a2b3; }
.compact-list { margin-top: 18px; }

.trial-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: start; }
.form { width: 100%; }
.form.card { padding: 28px; }
.form-row { display: flex; flex-direction: column; gap: 7px; margin-bottom: 16px; }
.form-row label { font-size: .88rem; font-weight: 750; }
.form-row input, .form-row textarea { width: 100%; border: 1px solid #cfd7e3; border-radius: 11px; background: #fff; color: var(--text-main); padding: 12px 13px; outline: none; transition: border-color .2s ease, box-shadow .2s ease; }
.form-row input:focus, .form-row textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-note { margin: 12px 0 0; color: var(--text-muted); font-size: .82rem; }

.contact-layout { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.contact-layout h2 { margin-bottom: 8px; }
.contact-layout p { color: var(--text-muted); }
.contact-card { min-width: 320px; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 24px; border: 1px solid var(--border-soft); border-radius: 15px; background: #fff; text-decoration: none; box-shadow: var(--shadow); }
.contact-card span { color: var(--text-muted); }
.contact-card strong { color: var(--accent); }

.footer { background: var(--bg-dark); color: #aeb8c8; padding: 28px 0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; gap: 24px; font-size: .86rem; }
.footer-nav { display: flex; gap: 18px; }
.footer-nav a { color: #c6cfdb; text-decoration: none; }
.footer-nav a:hover { color: #fff; }

.page-hero { padding: 72px 0 46px; background: linear-gradient(180deg,#fff 0%,var(--bg-main) 100%); }
.page-hero h1 { margin: 8px 0 14px; font-size: clamp(2.4rem, 5vw, 4.4rem); line-height: 1.04; letter-spacing: -.045em; }
.page-hero p { max-width: 820px; margin: 0; color: var(--text-muted); font-size: 1.1rem; }
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.content-card { padding: 28px; border: 1px solid var(--border-soft); border-radius: var(--radius); background: #fff; }
.content-card h2, .content-card h3 { margin-top: 0; }
.content-card p, .content-card li { color: var(--text-muted); }
.page-cta { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 32px; border-radius: var(--radius); background: #101827; color: #fff; }
.page-cta p { margin: 6px 0 0; color: #b9c4d6; }

@media (max-width: 900px) {
  .hero-content, .trial-layout, .content-grid, .compare-grid { grid-template-columns: 1fr; }
  .cards, .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-layout, .page-cta { align-items: flex-start; flex-direction: column; }
  .contact-card { min-width: 0; width: 100%; }
  .nav-toggle { display: inline-flex; }
  .nav { display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0; padding: 16px 20px 20px; background: #101827; border-top: 1px solid rgba(255,255,255,.08); box-shadow: 0 16px 28px rgba(15,23,42,.2); flex-direction: column; align-items: flex-start; gap: 14px; }
  .nav.is-open { display: flex; }
}

@media (max-width: 640px) {
  :root { --header-height: 66px; }
  .container { width: min(100% - 28px, 1160px); }
  .section { padding: 64px 0; }
  .hero { padding: 70px 0 58px; }
  .hero-text h1 { font-size: 2.65rem; }
  .cards, .grid-3 { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; align-items: flex-start; }
  .footer-nav { flex-wrap: wrap; }
  .contact-card { flex-direction: column; align-items: flex-start; gap: 8px; }
}