/* MQTT Connect — marketing site
   Tokens mirror app/src/ui/theme.ts 1:1 (the app's approved design canvas). */

:root {
  --bg: #0a0e17;
  --surface: #111725;
  --surface-raised: #161e30;
  --hairline: #1f2942;
  --hairline-hi: #2c3a5c;
  --row-hairline: #141b2b;
  --text: #e6ecf7;
  --text-secondary: #8a99b8;
  --text-tertiary: #5c6b8a;
  --accent: #2f8cff;
  --accent-deep: #123b8c;
  --accent-dim: rgba(47, 140, 255, 0.14);
  --accent-glow: rgba(47, 140, 255, 0.1);
  --accent-muted: #5b7fb8;
  --fault: #ffb020;
  --fault-dim: rgba(255, 176, 32, 0.1);
  --fault-border: rgba(255, 176, 32, 0.28);
  --white: #ffffff;

  --sans:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --mono: "SF Mono", Menlo, ui-monospace, "JetBrains Mono", Consolas, monospace;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-xxl: 24px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 13px;
  --radius-xl: 16px;
  --radius-pill: 20px;

  --maxw: 1120px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Background texture: faint grid + radial glow, echoes the app's dark chrome */
body {
  background-image:
    radial-gradient(circle at 18% 0%, var(--accent-glow), transparent 45%),
    linear-gradient(var(--row-hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--row-hairline) 1px, transparent 1px);
  background-size:
    auto,
    44px 44px,
    44px 44px;
  background-position:
    0 0,
    -1px -1px,
    -1px -1px;
  background-attachment: fixed;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 23, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 13.5px;
  color: var(--text-secondary);
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--text);
}
.nav-cta {
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  font-size: 13px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
}
.nav-cta:hover {
  background: #2678e0;
  color: var(--white);
}
.nav-toggle {
  display: none;
}

/* Hero */
.hero {
  padding: 92px 0 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  margin-bottom: 22px;
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
h1 {
  font-size: 46px;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  font-weight: 700;
}
h1 span {
  color: var(--accent);
}
.lede {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 0 32px;
}
.cta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14px;
  padding: 13px 22px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: #2678e0;
}
.btn-ghost {
  background: var(--surface);
  border-color: var(--hairline);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--hairline-hi);
}
.store-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 14px;
}

.stat-strip {
  display: flex;
  gap: 28px;
  margin-top: 44px;
  flex-wrap: wrap;
}
.stat-strip div {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-tertiary);
}
.stat-strip strong {
  display: block;
  font-family: var(--sans);
  font-size: 20px;
  color: var(--text);
  font-weight: 700;
}

/* Device mock */
.device {
  position: relative;
}
.phone {
  background: var(--bg);
  border: 1px solid var(--hairline-hi);
  border-radius: 34px;
  padding: 10px;
  box-shadow:
    0 30px 80px -20px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.02);
  max-width: 360px;
  margin: 0 auto;
}
.screen {
  background: var(--bg);
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid var(--hairline);
}
.screen-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 18px 4px;
}
.screen-title {
  font-size: 22px;
  font-weight: 700;
}
.screen-gear {
  color: var(--text-secondary);
  font-size: 17px;
}
.screen-summary {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-tertiary);
  padding: 4px 18px 12px;
}
.screen-list {
  padding: 0 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.card.fault {
  border-color: var(--fault-border);
}
.card-top {
  display: flex;
  align-items: center;
  gap: 9px;
}
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: none;
}
.status-dot.live {
  background: var(--accent);
}
.status-dot.idle {
  border: 1.6px solid var(--text-tertiary);
}
.status-dot.fault {
  border: 1.6px solid var(--fault);
}
.card-name {
  flex: 1;
  font-size: 14.5px;
  font-weight: 600;
}
.card-chip {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.card-badge {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 9px;
  padding: 1px 7px;
}
.card-host {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--text-tertiary);
}
.card-stats {
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-stats span {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-secondary);
}
.card-stats .grow {
  flex: 1;
}
.card-action {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 4px 9px;
}
.card.fault .card-action {
  color: var(--fault);
}
.fault-banner {
  background: var(--fault-dim);
  border: 1px solid var(--fault-border);
  border-radius: 10px;
  padding: 9px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fault);
  line-height: 1.4;
}
.add-row {
  border: 1px dashed var(--hairline);
  border-radius: var(--radius-xl);
  padding: 14px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-tertiary);
}
.footer-note {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--text-tertiary);
  text-align: center;
  line-height: 1.5;
  padding-top: 6px;
}

.glow-orb {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  top: 10%;
  right: -10%;
  z-index: -1;
  filter: blur(10px);
}

/* Sections */
section {
  padding: 84px 0;
}
.section-head {
  max-width: 620px;
  margin: 0 0 48px;
}
.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
h2 {
  font-size: 32px;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  font-weight: 700;
}
.section-head p {
  color: var(--text-secondary);
  font-size: 15.5px;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  padding: 26px;
  transition: border-color 0.15s;
}
.feature:hover {
  border-color: var(--hairline-hi);
}
.feature .icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent);
}
.feature h3 {
  font-size: 16px;
  margin: 0 0 8px;
  font-weight: 600;
}
.feature p {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.55;
}

/* Security band */
.security {
  background: var(--surface);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.security-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 26px;
}
.security-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.security-item .mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent);
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 1px;
}
.security-item div p {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-secondary);
}
.security-item div strong {
  font-size: 14.5px;
  font-weight: 600;
}

.terminal {
  background: var(--bg);
  border: 1px solid var(--hairline-hi);
  border-radius: var(--radius-lg);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-secondary);
  padding: 20px;
  line-height: 1.85;
  box-shadow: 0 20px 60px -25px rgba(0, 0, 0, 0.6);
}
.terminal .l1 {
  color: var(--text-tertiary);
}
.terminal .ok {
  color: var(--accent);
}
.terminal .warn {
  color: var(--fault);
}
.terminal .prompt {
  color: var(--text-tertiary);
}

/* Screens showcase */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.mini-screen {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mini-screen h4 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
}
.mini-screen .sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-tertiary);
  margin: -6px 0 4px;
}
.feed-row {
  border-bottom: 1px solid var(--row-hairline);
  padding: 7px 0 7px 8px;
  border-left: 2px solid var(--accent-dim);
  display: flex;
  gap: 8px;
  align-items: center;
}
.feed-row.out {
  border-left-color: var(--accent-muted);
}
.feed-row .t {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--text-tertiary);
}
.feed-row .d {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--accent);
}
.feed-row.out .d {
  color: var(--accent-muted);
}
.feed-row .topic {
  font-family: var(--mono);
  font-size: 10.5px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.feed-row.out .topic {
  color: var(--accent);
}
.seg {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}
.seg span {
  flex: 1;
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  padding: 5px;
  border-radius: 4px;
  color: var(--text-secondary);
}
.seg span.on {
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
}
.chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.chip {
  font-family: var(--mono);
  font-size: 9.5px;
  background: var(--surface-raised);
  border: 1px solid var(--hairline);
  border-radius: 5px;
  padding: 3px 7px;
  color: var(--text-secondary);
}
.chip.accent {
  background: var(--accent-dim);
  border-color: var(--hairline-hi);
  color: var(--accent);
}
.kv-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--row-hairline);
  font-family: var(--mono);
  font-size: 10.5px;
}
.kv-row:last-of-type {
  border-bottom: none;
}
.kv-row .k {
  color: var(--text-tertiary);
}
.kv-row .v {
  color: var(--text);
  text-align: right;
}
.kv-row .v.accent {
  color: var(--accent);
}
.payload-box {
  font-family: var(--mono);
  font-size: 10px;
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 9px;
  color: var(--text);
  white-space: pre;
  overflow: hidden;
}

/* Store cards */
.store-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0 0;
  text-align: left;
}
.store-card {
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.store-card .platform {
  font-size: 16px;
  font-weight: 700;
}
.store-badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--hairline-hi);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
}
.store-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.55;
}
.store-card .btn {
  width: 100%;
  justify-content: center;
  margin-top: auto;
}
.btn-disabled {
  background: var(--surface-raised);
  color: var(--text-tertiary);
  border: 1px solid var(--hairline);
  cursor: not-allowed;
}

/* CTA band */
.cta-band {
  text-align: center;
  border: 1px solid var(--hairline);
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 56px 32px;
}
.cta-band h2 {
  margin-bottom: 10px;
}
.cta-band p {
  color: var(--text-secondary);
  margin: 0 0 28px;
}

/* Footer */
footer {
  border-top: 1px solid var(--hairline);
  padding: 48px 0 32px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
}
.footer-links a:hover {
  color: var(--text);
}
.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--row-hairline);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* Legal pages */
.legal-head {
  padding: 120px 0 40px;
  border-bottom: 1px solid var(--hairline);
}
.legal-head h1 {
  font-size: 34px;
  margin-bottom: 8px;
}
.legal-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-tertiary);
}
.legal-body {
  padding: 56px 0 100px;
  max-width: 720px;
}
.legal-body h2 {
  font-size: 19px;
  margin: 40px 0 12px;
}
.legal-body h2:first-child {
  margin-top: 0;
}
.legal-body p,
.legal-body li {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.75;
}
.legal-body ul {
  padding-left: 20px;
}
.legal-body li {
  margin-bottom: 8px;
}
.legal-body strong {
  color: var(--text);
}
.legal-body a {
  color: var(--accent);
}
.legal-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 1px 5px;
}
.callout {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin: 24px 0;
}
.callout p {
  margin: 0;
  color: var(--text);
  font-size: 13.5px;
}
.toc {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  margin-bottom: 8px;
}
.toc div {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 10px;
}
.toc ol {
  margin: 0;
  padding-left: 18px;
  font-size: 13.5px;
}
.toc li {
  margin-bottom: 6px;
}
.toc a {
  color: var(--text-secondary);
}
.toc a:hover {
  color: var(--accent);
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .security-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 34px;
  }
  .device {
    margin-top: 8px;
  }
}
@media (max-width: 560px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    flex-direction: column;
  }
  .store-grid {
    grid-template-columns: 1fr;
  }
}