/* Gmail Unsubscribe — marketing site (brand system from gu-store-assets/src/gu.css) */
@font-face { font-family: 'Aileron'; src: url('/assets/Aileron-Regular.woff') format('woff'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Aileron'; src: url('/assets/Aileron-SemiBold.woff') format('woff'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Aileron'; src: url('/assets/Aileron-Bold.woff') format('woff'); font-weight: 700; font-display: swap; }

:root {
  --indigo: #414270;
  --indigo-deep: #363872;
  --indigo-soft: #F5F5FF;
  --lav: #E9E9FA;
  --ink: #23243B;
  --muted: #6B6D8F;
  --line: #E3E3EA;
  --green: #2E9E5B;
  --gmail-red: #EA4335;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Aileron', -apple-system, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img, video { max-width: 100%; height: auto; }
a { color: var(--indigo); }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }
.center { text-align: center; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: 999px; font-weight: 600; text-decoration: none;
  padding: 12px 24px; font-size: 16px; transition: transform .12s ease, box-shadow .12s ease;
}
.btn-primary { background: var(--indigo); color: #fff; box-shadow: 0 6px 18px rgba(65,66,112,.28); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(65,66,112,.34); }
.btn-ghost { background: transparent; color: var(--indigo); border: 1.5px solid var(--indigo); }
.btn-lg { padding: 16px 34px; font-size: 18px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--indigo); text-decoration: none; }
.brand img { border-radius: 8px; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--ink); text-decoration: none; font-size: 15px; font-weight: 600; }
.nav a:hover { color: var(--indigo); }

/* Hero */
.hero {
  text-align: center; padding: 72px 0 0; overflow: hidden;
  background:
    radial-gradient(900px 500px at 15% -10%, #DEDEFE 0%, rgba(222,222,254,0) 60%),
    radial-gradient(900px 600px at 110% 115%, #E4E4FB 0%, rgba(228,228,251,0) 55%),
    linear-gradient(160deg, #F7F7FF 0%, #EFEFFC 100%);
}
.hero h1 {
  font-size: clamp(34px, 5.4vw, 56px); font-weight: 700; letter-spacing: -1.2px;
  color: var(--indigo); max-width: 880px; margin: 0 auto; line-height: 1.12;
}
.hero h1 em { font-style: normal; color: var(--gmail-red); }
.hero-sub { margin: 20px auto 0; font-size: 20px; color: var(--muted); max-width: 680px; }
.hero-cta { margin-top: 32px; }
.hero-note { margin-top: 12px; font-size: 14px; color: var(--muted); }
.hero-shot { margin-top: 52px; }
.hero-shot img {
  display: block; margin: 0 auto; max-width: 960px; width: 100%;
  border-radius: 16px 16px 0 0; box-shadow: 0 24px 60px rgba(42,43,80,.18);
}

/* Proof bar */
.proof { background: var(--indigo); color: #fff; padding: 28px 0; }
.proof-row { display: flex; flex-wrap: wrap; justify-content: space-around; gap: 24px; text-align: center; }
.proof-item strong { display: block; font-size: 26px; font-weight: 700; }
.proof-item span { font-size: 14px; opacity: .8; }

/* Sections */
.section { padding: 84px 0; }
.section-alt { background: var(--indigo-soft); }
.section h2 {
  font-size: clamp(26px, 3.6vw, 38px); font-weight: 700; letter-spacing: -.6px;
  color: var(--indigo); text-align: center; max-width: 760px; margin: 0 auto;
}
.section-sub { text-align: center; color: var(--muted); font-size: 18px; max-width: 700px; margin: 16px auto 0; }

.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; margin-top: 48px; }
.split img { border-radius: 14px; box-shadow: 0 16px 44px rgba(42,43,80,.15); }
.split-reverse { grid-template-columns: 1.15fr 1fr; }
.split-reverse ul { order: 2; }
.split-reverse img { order: 1; }

/* Steps */
.steps { counter-reset: step; list-style: none; display: flex; flex-direction: column; gap: 20px; }
.steps li { position: relative; padding-left: 52px; font-size: 16.5px; color: var(--muted); }
.steps li strong { color: var(--ink); }
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--lav); color: var(--indigo); font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

/* Check lists */
.checks { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.checks li { position: relative; padding-left: 34px; font-size: 16.5px; color: var(--muted); }
.checks li strong { color: var(--ink); }
.checks li::before {
  content: ''; position: absolute; left: 0; top: 4px; width: 20px; height: 20px;
  border-radius: 50%; background: var(--green);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M12 2a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm-1.2 14.5-4-4 1.4-1.4 2.6 2.6 5.6-5.6 1.4 1.4-7 7z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M12 2a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm-1.2 14.5-4-4 1.4-1.4 2.6 2.6 5.6-5.6 1.4 1.4-7 7z'/%3E%3C/svg%3E") center/contain no-repeat;
}
.checks-wide { max-width: 720px; margin: 40px auto 0; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 28px;
  box-shadow: 0 6px 20px rgba(42,43,80,.06);
}
.card h3 { font-size: 18px; font-weight: 700; color: var(--indigo); margin-bottom: 10px; }
.card p { font-size: 15px; color: var(--muted); }

/* Comparison table */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 10px 30px rgba(42,43,80,.10); }
th, td { padding: 14px 16px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line); }
thead th { background: var(--indigo); color: #fff; font-weight: 700; }
tbody th { font-weight: 700; color: var(--ink); white-space: nowrap; }
tbody td { color: var(--muted); }
tbody td:last-child { color: var(--ink); font-weight: 600; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: none; }

/* Video */
.video-wrap { text-align: center; }
.video-wrap video {
  margin-top: 44px; border-radius: 16px; box-shadow: 0 24px 60px rgba(42,43,80,.18);
  max-width: 880px; width: 100%;
}

/* Pricing */
.pricing { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; max-width: 800px; margin: 48px auto 0; }
.price-card {
  background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 36px 32px;
  display: flex; flex-direction: column; gap: 18px;
}
.price-card-pro { border: 2px solid var(--indigo); box-shadow: 0 16px 44px rgba(42,43,80,.14); }
.price-card h3 { font-size: 20px; color: var(--indigo); }
.price { font-size: 40px; font-weight: 700; letter-spacing: -1px; }
.price span { display: block; font-size: 14px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.price-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.price-card li { padding-left: 26px; position: relative; font-size: 15px; color: var(--muted); }
.price-card li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* FAQ */
#faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
#faq details:first-of-type { margin-top: 40px; }
#faq summary { font-weight: 700; font-size: 17px; cursor: pointer; color: var(--ink); list-style-position: outside; }
#faq summary:hover { color: var(--indigo); }
#faq details p { margin-top: 12px; color: var(--muted); font-size: 15.5px; }

/* Final CTA */
.cta-final { background: linear-gradient(160deg, #F7F7FF 0%, #EFEFFC 100%); }
.cta-final img { border-radius: 14px; margin-bottom: 18px; }
.cta-final .btn { margin-top: 26px; }

/* Footer */
.site-footer { background: var(--indigo-deep); color: #C9CAE6; padding: 56px 0; font-size: 14.5px; }
.footer-inner { display: flex; flex-direction: column; gap: 16px; max-width: 760px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: #fff; }
.footer-brand img { border-radius: 6px; }
.site-footer a { color: #fff; }
.site-footer nav { display: flex; gap: 22px; margin-top: 6px; }
.fineprint { font-size: 12.5px; opacity: .65; margin-top: 10px; }

/* Responsive */
@media (max-width: 900px) {
  .nav { display: none; }
  .split, .split-reverse { grid-template-columns: 1fr; gap: 32px; }
  .split-reverse ul { order: 1; }
  .split-reverse img { order: 2; }
  .grid { grid-template-columns: 1fr 1fr; }
  .pricing { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .proof-item strong { font-size: 20px; }
}