/* ─────────────────────────────────────────────
   Hopgo marketing site
   Design tokens and components, dark-first.
   ───────────────────────────────────────────── */

:root {
  --bg: #07090e;
  --surface: #0d111a;
  --surface-2: #141822;
  --surface-alt: rgba(255, 255, 255, 0.015);
  --border: #1b2230;
  --border-soft: rgba(255, 255, 255, 0.06);
  --border-faint: rgba(255, 255, 255, 0.05);

  --text: #eef1f6;
  --text-muted: #8a93a3;
  --text-dim: #6b7a96;
  --text-faint: #4a5468;
  --text-faintest: #2d3a50;

  --blue: #2563eb;
  --blue-bright: #3b82f6;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;

  --maxw: 1120px;
  --pad-x: 40px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

h1,
h2,
p {
  margin: 0;
}

/* ── Fixed grid layer ─────────────────────────── */
.grid-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 72px 72px;
}

/* ── Shared layout ────────────────────────────── */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section {
  position: relative;
  z-index: 1;
}

.label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 14px;
}

h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  line-height: 1.15;
}

.wordmark {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.wordmark .go {
  color: var(--blue-bright);
}

/* ── Buttons ──────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 7px;
  font-size: 15px;
  font-weight: 600;
  transition:
    transform 0.15s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}
.btn-primary {
  padding: 13px 24px;
  background: var(--blue);
  color: #fff;
  box-shadow: 0 0 28px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 36px rgba(37, 99, 235, 0.5);
}
.btn-ghost {
  padding: 13px 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #aab4c4;
  font-weight: 500;
}
.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.24);
  color: var(--text);
}

/* "Coming soon" badge on the Add to Chrome CTAs (store listing not live yet) */
.soon {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  white-space: nowrap;
}
.btn-primary[aria-disabled="true"],
.nav-cta[aria-disabled="true"] {
  cursor: default;
}
.btn-primary[aria-disabled="true"]:hover,
.nav-cta[aria-disabled="true"]:hover {
  transform: none;
}
.nav-cta .soon {
  font-size: 9px;
  padding: 2px 6px;
}

/* ── Nav ──────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  height: 64px;
  display: flex;
  align-items: center;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 36px;
}
.nav-logo .wordmark {
  font-size: 18px;
}
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--text);
}
.nav-spacer {
  flex: 1;
}
.nav-gh {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--mono);
  color: var(--text-muted);
  margin-right: 10px;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.nav-gh:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  background: var(--blue);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  transition:
    transform 0.15s ease,
    box-shadow 0.2s ease;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.45);
}

/* ── Hero ─────────────────────────────────────── */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px var(--pad-x) 88px;
  display: flex;
  align-items: center;
  gap: 64px;
}
.hero-glow {
  position: absolute;
  left: -180px;
  top: -60px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.18) 0%, transparent 65%);
  pointer-events: none;
}
.hero-left {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: clamp(48px, 5.5vw, 72px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0 0 24px;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0 0 40px;
  max-width: 480px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 28px;
}
.hero-badges {
  font-family: var(--mono);
  font-size: 12px;
  color: #3f4a58;
  display: flex;
  gap: 20px;
}
.hero-badges .dot {
  color: var(--border);
}

/* ── Extension popup mockup ───────────────────── */
.hero-right {
  flex-shrink: 0;
  width: 320px;
  position: relative;
  z-index: 1;
}
.hero-right-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.popup {
  background: var(--surface-2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  box-shadow:
    0 32px 80px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(59, 130, 246, 0.07);
  overflow: hidden;
  position: relative;
}
.popup-head {
  padding: 13px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.02);
}
.popup-head .wordmark {
  font-size: 14px;
  flex: 1;
}
.popup-pill {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--blue-bright);
  background: rgba(37, 99, 235, 0.15);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.03em;
}
.popup-field {
  padding: 14px 16px 0;
}
.popup-field + .popup-slug {
  padding-top: 12px;
}
.popup-cap {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #3f4a5c;
  margin-bottom: 7px;
}
.popup-tab {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 11px;
  color: #5f6e84;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.popup-slug {
  padding: 12px 16px;
}
.popup-slug-box {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid rgba(59, 130, 246, 0.35);
  border-radius: 6px;
  overflow: hidden;
}
.popup-slug-prefix {
  font-family: var(--mono);
  font-size: 11px;
  color: #4a5a72;
  padding: 9px 8px 9px 12px;
  white-space: nowrap;
  flex-shrink: 0;
}
.popup-slug-val {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  padding: 9px 12px 9px 2px;
}
.popup-cursor {
  margin-left: auto;
  width: 2px;
  height: 14px;
  background: var(--blue-bright);
  border-radius: 1px;
  margin-right: 12px;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}
.popup-btn-wrap {
  padding: 0 16px 14px;
}
.popup-btn {
  background: var(--blue);
  border-radius: 6px;
  padding: 11px;
  text-align: center;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.35);
}
.popup-divider {
  margin: 0 16px;
  border-top: 1px solid var(--border-soft);
}
.popup-recent-cap {
  padding: 10px 16px 4px;
}
.popup-recent-cap .popup-cap {
  margin-bottom: 0;
}
.popup-link {
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.popup-link:last-child {
  padding-bottom: 14px;
}
.popup-link .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  flex-shrink: 0;
}
.popup-link-url {
  font-family: var(--mono);
  font-size: 11px;
  color: #5f6e84;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.popup-link-url .slug {
  color: #b8c2d0;
}
.popup-link-count {
  font-family: var(--mono);
  font-size: 11px;
  color: #3f4a58;
}
.transform-chip {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.transform-chip .from {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.transform-chip .to {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--blue-bright);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Section: How it works ────────────────────── */
.section {
  padding: 96px 0;
}
.section.bordered {
  border-top: 1px solid var(--border-soft);
}
.section.alt {
  background: var(--surface-alt);
}
.section h2 {
  margin-bottom: 56px;
}
.section-lead {
  font-size: 18px;
  color: var(--text-dim);
  margin: -40px 0 56px;
  max-width: 640px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  transition:
    border-color 0.2s ease,
    transform 0.2s ease;
}
.card:hover {
  border-color: #2a3548;
  transform: translateY(-2px);
}
.card-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--blue-bright);
  margin-bottom: 20px;
}
.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Why cards (icon tiles) ───────────────────── */
.why-card {
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.icon-tile {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}
.why-card .card-title {
  margin-bottom: 0;
}
.why-card p {
  line-height: 1.65;
}

/* ── Features ─────────────────────────────────── */
.feat-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 32px 36px;
}
.feat-num {
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faintest);
  padding-top: 3px;
}
.feat-card .feat-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.feat-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}
.feat-card .mono {
  font-family: var(--mono);
  color: #6b8cb0;
  font-size: 13px;
}

/* ── Security ─────────────────────────────────── */
.security {
  padding: 96px 0;
  background: var(--surface-alt);
  border-top: 1px solid var(--border-faint);
  border-bottom: 1px solid var(--border-faint);
}
.security-inner {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}
.security-left {
  flex: 1;
}
.security-left h2 {
  font-size: 36px;
  margin-bottom: 16px;
  line-height: 1.2;
}
.security-left p {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 32px;
}
.privacy-link {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--blue-bright);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.privacy-link:hover {
  text-decoration: underline;
}
.security-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.check-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.check-tile {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(37, 99, 235, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.check-card .check-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.check-card p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ── FAQ ──────────────────────────────────────── */
.faq-wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.faq-wrap h2 {
  margin-bottom: 48px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
summary {
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  list-style: none;
  cursor: pointer;
}
summary::-webkit-details-marker {
  display: none;
}
summary svg {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
details[open] summary svg {
  transform: rotate(180deg);
}
.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition:
    max-height 0.3s ease,
    padding 0.3s ease;
  padding: 0 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
}
details[open] .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

/* ── Bottom CTA ───────────────────────────────── */
.cta {
  padding: 96px 0;
  text-align: center;
  border-top: 1px solid var(--border-soft);
}
.cta-glow {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 640px;
  height: 320px;
  background: radial-gradient(ellipse, rgba(37, 99, 235, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.cta-mark {
  margin-bottom: 24px;
  filter: drop-shadow(0 0 18px rgba(59, 130, 246, 0.5));
}
.cta h2 {
  font-size: 44px;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.cta p {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 36px;
}
.cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta .btn {
  font-size: 16px;
  padding: 14px 28px;
}
.cta .btn-primary {
  box-shadow: 0 0 32px rgba(37, 99, 235, 0.4);
}

/* ── Footer ───────────────────────────────────── */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-soft);
  padding: 48px 0 0;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: flex;
  align-items: flex-start;
  gap: 64px;
  flex-wrap: wrap;
}
.footer-brand {
  flex: 1;
  min-width: 200px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.footer-logo .wordmark {
  font-size: 16px;
  letter-spacing: -0.015em;
}
.footer-tag {
  font-size: 13px;
  color: var(--text-faint);
  line-height: 1.6;
  max-width: 220px;
}
.footer-cols {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
}
.footer-col-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #3f4a58;
  margin-bottom: 14px;
}
.footer-col-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col-links a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s;
}
.footer-col-links a:hover {
  color: var(--text);
}
.footer-col-links a.mono {
  font-family: var(--mono);
}
.footer-rule {
  max-width: var(--maxw);
  margin: 32px auto 0;
  padding: 24px 40px;
  border-top: 1px solid var(--border-faint);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-rule span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faintest);
}
.footer-rule .license {
  letter-spacing: 0.08em;
}

/* ── Entrance animations ──────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.anim {
  animation: fadeUp 0.7s ease both;
}
.anim-2 {
  animation: fadeUp 0.7s 0.12s ease both;
}
.anim-3 {
  animation: fadeUp 0.7s 0.24s ease both;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .anim,
  .anim-2,
  .anim-3,
  .popup-cursor {
    animation: none;
  }
}

/* ── Legal pages ──────────────────────────────── */
.legal {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 80px var(--pad-x) 96px;
}
.legal h1 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.legal .updated {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  margin-bottom: 40px;
}
.legal h2 {
  font-size: 22px;
  margin: 40px 0 14px;
}
.legal p,
.legal li {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}
.legal p {
  margin-bottom: 16px;
}
.legal ul {
  padding-left: 20px;
  margin: 0 0 16px;
}
.legal li {
  margin-bottom: 10px;
}
.legal a {
  color: var(--blue-bright);
}
.legal a:hover {
  text-decoration: underline;
}
.legal code,
.legal .mono {
  font-family: var(--mono);
  font-size: 13px;
  color: #6b8cb0;
}
.legal .back {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--blue-bright);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 40px;
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 880px) {
  :root {
    --pad-x: 24px;
  }
  .nav-links {
    display: none;
  }
  .hero {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 64px;
    gap: 48px;
  }
  .hero-right {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
  }
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .security-inner {
    flex-direction: column;
    gap: 40px;
  }
  h2 {
    font-size: 32px;
  }
  .security-left h2,
  .cta h2 {
    font-size: 30px;
  }
}

@media (max-width: 520px) {
  .nav-gh {
    display: none;
  }
}