:root {
  --bg: #f7f8fc;
  --surface: #ffffff;
  --surface-soft: #eef2ff;
  --text: #101828;
  --muted: #667085;
  --primary: #5b5ff5;
  --primary-dark: #3f3fc7;
  --accent: #7c3aed;
  --accent-soft: #a78bfa;
  --line: #e4e7ec;
  --success: #12b76a;
  --shadow: 0 30px 80px rgba(16, 24, 40, .13);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0%, rgba(124, 58, 237, .09), transparent 28%),
    radial-gradient(circle at 92% 8%, rgba(91, 95, 245, .13), transparent 30%),
    var(--bg);
}
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; padding: 12px 16px; color: #fff; background: #101828; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.site-shell { width: min(1240px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 18px;
  z-index: 20;
  margin-top: 18px;
  padding: 14px 18px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 20px;
  box-shadow: 0 14px 40px rgba(16,24,40,.08);
}
.brand { display: inline-flex; align-items: center; width: fit-content; }
.brand-logo { display: block; width: 205px; height: auto; }
.main-nav { display: flex; gap: 28px; font-size: .93rem; font-weight: 750; color: #475467; }
.main-nav a:hover { color: var(--primary); }
.site-header > .button { justify-self: end; }
.button { border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 23px; border-radius: 14px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid rgba(91,95,245,.32); outline-offset: 3px; }
.button-primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 16px 28px rgba(91,95,245,.24); }
.button-primary:hover { box-shadow: 0 20px 34px rgba(91,95,245,.3); }
.button-secondary { background: #fff; color: var(--text); border: 1px solid var(--line); }
.button-light { color: var(--primary-dark); background: #fff; }
.button-small { min-height: 42px; padding-inline: 18px; font-size: .88rem; }
.button-large { min-height: 56px; padding-inline: 28px; }
.hero { min-height: 760px; padding: 110px 10px 80px; align-items: center; }
.section-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 78px; }
.eyebrow { display: inline-block; margin-bottom: 18px; color: var(--primary); font-size: .79rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow-light { color: #c4b5fd; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 760px; margin-bottom: 25px; font-size: clamp(3.35rem, 6.4vw, 6.3rem); line-height: .98; letter-spacing: -.07em; }
h1 span { color: var(--primary); }
.hero-text { max-width: 650px; margin-bottom: 35px; color: var(--muted); font-size: 1.18rem; line-height: 1.75; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.trust-row { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 34px; color: var(--muted); font-size: .88rem; }
.trust-row span { display: inline-flex; align-items: center; gap: 5px; }
.trust-row strong { color: var(--text); }
.hero-visual { position: relative; min-height: 510px; display: grid; place-items: center; }
.glow { position: absolute; border-radius: 999px; filter: blur(10px); }
.glow-one { width: 300px; height: 300px; background: rgba(124,58,237,.16); top: 1%; right: 2%; }
.glow-two { width: 235px; height: 235px; background: rgba(91,95,245,.16); bottom: 5%; left: 0; }
.mail-window { position: relative; z-index: 2; width: min(620px, 100%); border-radius: 26px; overflow: hidden; background: #fff; box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.95); transform: rotate(1.2deg); }
.mail-window-bar { display: flex; align-items: center; gap: 8px; height: 56px; padding: 0 18px; background: #f8fafc; border-bottom: 1px solid var(--line); }
.mail-window-bar > span { width: 10px; height: 10px; border-radius: 50%; background: #d0d5dd; }
.mail-window-title { margin-left: auto; color: #98a2b3; font-size: .75rem; }
.mail-layout { display: grid; grid-template-columns: 145px 1fr; min-height: 375px; }
.mail-sidebar { padding: 20px 18px; background: linear-gradient(180deg, #15172f, #23275d); }
.mini-brand { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 22px; border-radius: 14px; background: rgba(255,255,255,.11); }
.mini-brand img { width: 30px; }
.compose-pill { height: 38px; border-radius: 12px; background: linear-gradient(135deg, #818cf8, #a78bfa); margin-bottom: 28px; }
.sidebar-line { width: 88%; height: 9px; margin-bottom: 18px; border-radius: 999px; background: rgba(255,255,255,.18); }
.sidebar-line.active { background: rgba(255,255,255,.72); }
.sidebar-line.short { width: 60%; }
.mail-list { padding: 12px; }
.mail-item { display: grid; grid-template-columns: 42px 1fr auto; gap: 12px; align-items: center; padding: 18px 15px; border-bottom: 1px solid var(--line); }
.mail-item.featured { margin-bottom: 8px; border: 0; border-radius: 16px; background: var(--surface-soft); }
.mail-item strong { display: block; font-size: .88rem; }
.mail-item p { margin: 5px 0 0; color: var(--muted); font-size: .76rem; }
.mail-item time { align-self: start; color: #98a2b3; font-size: .68rem; }
.avatar { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: #fff; font-weight: 800; background: linear-gradient(135deg, var(--primary), var(--accent)); }
.avatar.soft { color: var(--primary-dark); background: #eef2ff; }
.service-strip { margin: 0 10px 80px; padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border: 1px solid #d9dcff; border-radius: 18px; background: rgba(255,255,255,.84); box-shadow: 0 12px 32px rgba(16,24,40,.05); }
.service-strip > div { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; color: #475467; }
.service-strip a { color: var(--primary-dark); font-weight: 850; white-space: nowrap; }
.service-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 5px rgba(18,183,106,.12); }
.section { padding: 88px 10px; }
.section-heading { max-width: 780px; margin: 0 auto 48px; text-align: center; }
.section-heading.compact { margin-bottom: 34px; }
h2 { margin-bottom: 18px; font-size: clamp(2.2rem, 4.8vw, 4.35rem); line-height: 1.05; letter-spacing: -.055em; }
.section-heading p, .security-panel p, .final-cta p, .webmail-card p { color: var(--muted); line-height: 1.8; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-card { min-height: 280px; padding: 30px; background: rgba(255,255,255,.86); border: 1px solid rgba(255,255,255,.95); border-radius: var(--radius-md); box-shadow: 0 18px 50px rgba(16,24,40,.06); }
.feature-card h3 { margin: 26px 0 12px; font-size: 1.18rem; }
.feature-card p { color: var(--muted); line-height: 1.7; }
.icon-box { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 15px; color: #fff; font-weight: 850; background: linear-gradient(135deg, var(--primary), var(--accent)); }
.webmail-panel { padding-top: 60px; padding-bottom: 60px; }
.webmail-card { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; padding: 42px; border-radius: var(--radius-lg); background: linear-gradient(135deg, #fff, #f0f2ff); border: 1px solid #e2e4ff; box-shadow: 0 24px 70px rgba(91,95,245,.1); }
.webmail-card-logo { display: grid; place-items: center; width: 82px; height: 82px; border-radius: 24px; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 16px 30px rgba(91,95,245,.22); }
.webmail-card-logo img { width: 48px; }
.webmail-card-copy h2 { margin-bottom: 12px; font-size: clamp(2rem, 4vw, 3.4rem); }
.webmail-card-copy p { max-width: 690px; margin-bottom: 20px; }
.url-box { display: inline-flex; align-items: center; gap: 3px; padding: 12px 15px; border: 1px solid #d9dcff; border-radius: 12px; color: #667085; background: rgba(255,255,255,.75); font-size: .92rem; }
.url-box strong { color: var(--primary-dark); }
.security-panel { margin: 80px 0; padding: 60px; display: flex; align-items: center; justify-content: space-between; gap: 40px; color: #fff; background: linear-gradient(135deg, #12152e, #252a66); border-radius: var(--radius-lg); overflow: hidden; position: relative; }
.security-panel:after { content: ""; position: absolute; width: 290px; height: 290px; right: -70px; top: -80px; border-radius: 50%; background: rgba(124,58,237,.36); filter: blur(8px); }
.security-panel > * { position: relative; z-index: 1; }
.security-panel p { max-width: 680px; color: #d0d5dd; }
.faq-list { max-width: 860px; margin: 0 auto; }
details { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 0 22px; margin-bottom: 14px; }
summary { cursor: pointer; padding: 22px 0; font-weight: 820; }
details p { padding-bottom: 22px; color: var(--muted); line-height: 1.75; }
details a { color: var(--primary-dark); }
.final-cta { margin-bottom: 80px; text-align: center; background: linear-gradient(180deg, rgba(238,242,255,.9), rgba(255,255,255,.92)); border-radius: var(--radius-lg); }
.final-logo { width: 58px; height: 58px; margin-bottom: 20px; padding: 10px; border-radius: 18px; background: linear-gradient(135deg, var(--primary), var(--accent)); }
.final-cta p { margin-bottom: 28px; }
.site-footer { min-height: 120px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-top: 1px solid var(--line); color: var(--muted); font-size: .86rem; }
.footer-brand .brand-logo { width: 180px; }
.site-footer p { margin: 0; }
.footer-links { justify-self: end; display: flex; gap: 20px; }
.footer-links a:hover { color: var(--primary); }
.legal-page { max-width: 860px; margin: 0 auto; padding: 70px 0 100px; }
.legal-page h1 { margin: 35px 0 22px; font-size: clamp(2.6rem, 7vw, 4.8rem); }
.legal-page h2 { margin-top: 42px; font-size: 1.5rem; letter-spacing: -.03em; }
.legal-page p, .legal-page li { color: var(--muted); line-height: 1.8; }
.back-link { color: var(--primary-dark); font-weight: 800; }
.notice-box { padding: 20px; border: 1px solid #fec84b; border-radius: 14px; background: #fffaeb; color: #7a2e0e; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; }
  .main-nav { display: none; }
  .section-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero { padding-top: 90px; }
  .hero-copy { text-align: center; }
  .hero-text { margin-inline: auto; }
  .hero-actions, .trust-row { justify-content: center; }
  .hero-visual { min-height: 450px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .webmail-card { grid-template-columns: auto 1fr; }
  .webmail-card > .button { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  .site-shell { width: min(100% - 18px, 1240px); }
  .site-header { top: 8px; margin-top: 8px; padding: 10px 12px; }
  .brand-logo { width: 160px; }
  .site-header > .button { min-height: 38px; padding-inline: 13px; font-size: .8rem; }
  .hero { min-height: auto; padding: 74px 6px 58px; }
  h1 { font-size: clamp(3rem, 16vw, 4.7rem); }
  .hero-text { font-size: 1rem; }
  .mail-layout { grid-template-columns: 95px 1fr; }
  .mail-sidebar { padding: 16px 11px; }
  .mail-item { grid-template-columns: 36px 1fr; }
  .mail-item time { display: none; }
  .service-strip { margin: 0 0 42px; display: block; text-align: center; }
  .service-strip > div { justify-content: center; margin-bottom: 12px; }
  .section { padding: 62px 6px; }
  .feature-grid { grid-template-columns: 1fr; }
  .webmail-card { grid-template-columns: 1fr; padding: 30px 24px; text-align: center; }
  .webmail-card-logo { margin: 0 auto; }
  .url-box { font-size: .78rem; }
  .security-panel { margin: 40px 0; padding: 38px 26px; display: block; text-align: center; }
  .security-panel .button { margin-top: 12px; }
  .site-footer { grid-template-columns: 1fr; gap: 18px; padding: 30px 4px; text-align: center; }
  .footer-brand, .footer-links { justify-self: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
}