:root {
  --ink: #14213d;
  --muted: #5d6b82;
  --line: #dce3ee;
  --paper: #ffffff;
  --soft: #f5f8fc;
  --accent: #1f6feb;
  --accent-dark: #174ea6;
  --success: #11845b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--soft);
}

a { color: var(--accent); text-decoration: none; }

.site-header {
  min-height: 72px;
  padding: 0 6vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  color: var(--ink);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand span { color: var(--accent); }
.brand.centered { display: block; text-align: center; margin-bottom: 22px; }

nav { display: flex; align-items: center; gap: 16px; font-weight: 700; }
.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
}

.hero {
  min-height: calc(100vh - 72px);
  padding: 8vh 6vw;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .7fr);
  align-items: center;
  gap: 48px;
  background:
    linear-gradient(90deg, rgba(20,33,61,.94), rgba(20,33,61,.74)),
    url('https://images.unsplash.com/photo-1456513080510-7bf3a84b82f8?auto=format&fit=crop&w=1800&q=80') center/cover;
  color: #fff;
}

.eyebrow {
  margin: 0 0 12px;
  color: #9fd2ff;
  font-size: 13px;
  text-transform: uppercase;
  font-weight: 800;
}

h1 { font-size: clamp(42px, 7vw, 84px); line-height: .96; margin: 0 0 22px; letter-spacing: 0; }
h2 { font-size: 34px; margin: 0 0 18px; letter-spacing: 0; }
h3 { margin: 0 0 10px; font-size: 20px; }
.lead { max-width: 780px; color: #e8eef8; font-size: 21px; line-height: 1.55; }

.hero-actions, .section-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 800;
  cursor: pointer;
}
.button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.button.primary:hover { background: var(--accent-dark); }
.button.secondary { background: #fff; color: var(--ink); }
.button.full { width: 100%; }

.hero-panel {
  display: grid;
  gap: 12px;
}
.metric {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 8px;
  padding: 18px;
  backdrop-filter: blur(10px);
}
.metric strong { display: block; font-size: 21px; margin-bottom: 6px; }
.metric span { color: #d9e7f8; line-height: 1.45; }

.feature-band, .plans, .dashboard {
  padding: 70px 6vw;
}
.feature-grid, .plan-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.feature-grid article, .plan, .account-table, .account-hero, .auth-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(20,33,61,.06);
}
.feature-grid p, .plan p, .account-hero p, .auth-card p { color: var(--muted); line-height: 1.55; }
.section-title { max-width: 760px; margin-bottom: 22px; }
.section-title p { color: var(--muted); }
.plan-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.price { color: var(--success) !important; font-size: 22px; font-weight: 800; }
.site-footer { padding: 26px 6vw; border-top: 1px solid var(--line); background: #fff; color: var(--muted); }

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.auth-card {
  width: min(100%, 440px);
}
.auth-card h1 { font-size: 34px; line-height: 1.1; text-align: center; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 7px; font-size: 13px; font-weight: 800; }
input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  font-size: 15px;
}
.alert {
  border: 1px solid #ffc9c9;
  background: #fff1f1;
  color: #991b1b;
  border-radius: 8px;
  padding: 12px;
  margin: 16px 0;
}
.small { text-align: center; font-size: 14px; }
.dashboard { display: grid; gap: 24px; }
.account-hero h1 { font-size: 42px; }
.account-table table { width: 100%; border-collapse: collapse; }
.account-table th, .account-table td { text-align: left; border-bottom: 1px solid var(--line); padding: 12px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 52px; }
  .feature-grid, .plan-grid { grid-template-columns: 1fr; }
  .site-header { align-items: flex-start; flex-direction: column; padding-top: 16px; padding-bottom: 16px; }
}