/* DART iQ marketing — Cobalt on Graphite, civic-grade software */
@import url("brand/dartiq-brand-tokens.css");

:root,
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: var(--dartiq-graphite);
  --bg-elevated: #1a2030;
  --bg-card: #181c23;
  --text: var(--dartiq-white);
  --text-secondary: #c5cbd4;
  --text-muted: #8b939f;
  --rule: var(--dartiq-rule-dark);
  --rule-strong: #3a414c;
  --accent: var(--dartiq-cobalt);
  --accent-hover: #3a5ae8;
  --accent-soft: rgba(27, 63, 224, 0.14);
  --accent-on-dark: var(--dartiq-cobalt-lift);
  --btn-on-primary: var(--dartiq-white);
  --nav-bg: rgba(16, 19, 24, 0.92);
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
  --mark-filter: none;
  --success: #3d9a7a;
  --dot-color: rgba(255, 255, 255, 0.07);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: var(--dartiq-paper);
  --bg-elevated: var(--dartiq-white);
  --bg-card: var(--dartiq-white);
  --text: var(--dartiq-graphite);
  --text-secondary: #3a414c;
  --text-muted: #5c6570;
  --rule: var(--dartiq-rule);
  --rule-strong: #c5cbd4;
  --accent: var(--dartiq-cobalt);
  --accent-hover: #1636c9;
  --accent-soft: rgba(27, 63, 224, 0.08);
  --accent-on-dark: var(--dartiq-cobalt);
  --btn-on-primary: var(--dartiq-white);
  --nav-bg: rgba(247, 248, 250, 0.94);
  --shadow: 0 1px 0 rgba(16, 19, 24, 0.06);
  --success: #1f7a5c;
  --dot-color: rgba(0, 0, 0, 0.09);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  font-family: "Instrument Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg);
  background-image: radial-gradient(var(--dot-color, rgba(255,255,255,0.07)) 1.2px, transparent 1.2px);
  background-size: 22px 22px;
  background-position: -11px -11px;
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  font-size: 1.05rem;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(
    135deg,
    transparent 0%,
    transparent 30%,
    rgba(27, 63, 224, 0.08) 55%,
    rgba(27, 63, 224, 0.22) 80%,
    rgba(27, 63, 224, 0.38) 100%
  );
}

html[data-theme="light"] body::after {
  background: linear-gradient(
    135deg,
    transparent 0%,
    transparent 30%,
    rgba(27, 63, 224, 0.04) 55%,
    rgba(27, 63, 224, 0.10) 80%,
    rgba(27, 63, 224, 0.18) 100%
  );
}

.nav,
.hero,
section,
footer {
  position: relative;
  z-index: 1;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
ul { list-style: none; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -40px;
  z-index: 200;
  background: var(--accent);
  color: var(--btn-on-primary);
  padding: 0.5rem 0.85rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.skip-link:focus { top: 0.75rem; }

.mono {
  font-family: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  font-feature-settings: "ss01" 0;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(12px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 0.75rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 120px;
  flex-shrink: 0;
}

.logo-mark {
  width: 28px;
  height: 28px;
}
.logo-mark-light { display: none; }
.logo-mark-dark { display: block; }
html[data-theme="light"] .logo-mark-light { display: block; }
html[data-theme="light"] .logo-mark-dark { display: none; }

.logo-wordmark {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: var(--text);
  white-space: nowrap;
}
.logo-iq { color: var(--accent); }

.nav-links {
  display: none;
  gap: 1.75rem;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--accent-on-dark); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-login {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--rule-strong);
  background: transparent;
}
.nav-login:hover,
.nav-login:focus-visible { border-color: var(--accent); color: var(--text); }

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 650;
  border: 1px solid transparent;
  cursor: pointer;
  letter-spacing: -0.01em;
}

.nav-cta,
.btn-primary {
  background: var(--accent);
  color: var(--btn-on-primary);
}
.nav-cta:hover,
.btn-primary:hover,
.nav-cta:focus-visible,
.btn-primary:focus-visible { background: var(--accent-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--rule-strong);
}
.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--accent);
  color: var(--accent-on-dark);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--rule);
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text);
  width: 100%;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.nav-toggle span { transition: transform 0.16s ease, opacity 0.16s ease; }

.nav-drawer {
  display: none;
  border-top: 1px solid var(--rule);
  background: var(--bg);
  padding: 0.5rem 1.5rem 1rem;
}
.nav-drawer.is-open { display: block; }
.nav-drawer a {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  font-weight: 550;
  min-height: 44px;
}
.nav-drawer a:last-child { border-bottom: 0; }

@media (min-width: 860px) {
  .nav-links { display: flex; }
  .nav-toggle,
  .nav-drawer { display: none !important; }
}

@media (max-width: 859px) {
  .nav-login,
  .nav-actions .nav-cta { display: none; }
}

/* Hero */
.hero {
  position: relative;
  padding: 8.5rem 0 6rem;
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.hero-layout {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin-bottom: 1.25rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

.hero h1 {
  font-size: clamp(2.15rem, 5.4vw, 3.55rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.08;
  color: var(--text);
  max-width: 18ch;
  margin-bottom: 0.85rem;
}

.hero-support {
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.15rem;
  max-width: 36rem;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 36rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-long-term { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.5rem; margin-bottom: 2rem; }

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-signin {
  margin-top: 1.15rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.hero-signin a {
  color: var(--accent-on-dark);
  font-weight: 600;
}
.hero-signin a:hover,
.hero-signin a:focus-visible { text-decoration: underline; }

.hero-panel {
  border: 1px solid var(--rule);
  background: var(--bg-elevated);
  padding: 1.35rem 1.35rem 1.15rem;
}

.hero-panel-label {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.clearance-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 132px;
  margin-bottom: 1.15rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
}

.clearance-boundary {
  width: 96px;
  height: 96px;
  position: relative;
  color: var(--text);
}
.clearance-boundary svg {
  width: 96px;
  height: 96px;
  display: block;
}

.clearance-unit {
  position: absolute;
  width: 18px;
  height: 18px;
  background: var(--accent);
  left: 52px;
  top: 39px;
  animation: clearance-pass 3.6s ease-in-out infinite;
}

.checkpoint-list {
  display: grid;
  gap: 0.45rem;
}

.checkpoint {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 0.75rem;
  align-items: baseline;
  font-size: 0.88rem;
}
.checkpoint-id {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.checkpoint-label { color: var(--text-secondary); }
.checkpoint-state {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--success);
}
.checkpoint--done .checkpoint-state { color: var(--color-success, #22c55e); }
.checkpoint--active .checkpoint-state { color: var(--color-accent, #1b3fe0); font-weight: 600; }

@keyframes clearance-pass {
  0% { transform: translateX(-18px); opacity: 0.35; }
  35% { transform: translateX(0); opacity: 1; }
  70% { transform: translateX(28px); opacity: 1; }
  100% { transform: translateX(46px); opacity: 0; }
}

.hero-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  margin-top: 3.5rem;
  border: 1px solid var(--rule);
}
.hero-facts > div {
  background: rgba(27, 63, 224, 0.06);
  padding: 1.5rem 1.6rem;
}
html[data-theme="light"] .hero-facts > div {
  background: rgba(27, 63, 224, 0.04);
}
.fact-kicker {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin-bottom: 0.35rem;
}
.fact-copy {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Sections */
section { padding: 6rem 0; }
.section-alt {
  background: var(--bg-elevated);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.section-cobalt {
  background: var(--accent);
  border-top: none;
  border-bottom: none;
  position: relative;
  z-index: 1;
}

.section-cobalt .section-label {
  color: rgba(255, 255, 255, 0.65);
}

.section-cobalt .cta-title,
.section-cobalt .section-desc {
  color: var(--dartiq-white, #ffffff);
}

.section-cobalt .section-desc {
  color: rgba(255, 255, 255, 0.8);
}

.section-cobalt .form-section {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.section-cobalt .form-group label {
  color: rgba(255, 255, 255, 0.85);
}

.section-cobalt .form-group input,
.section-cobalt .form-group select {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.section-cobalt .form-group input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.section-cobalt .form-group input:focus,
.section-cobalt .form-group select:focus {
  outline-color: rgba(255, 255, 255, 0.6);
}

.section-cobalt .btn-primary {
  background: #ffffff;
  color: var(--accent);
  border-color: transparent;
}

.section-cobalt .btn-primary:hover,
.section-cobalt .btn-primary:focus-visible {
  background: rgba(255, 255, 255, 0.9);
}

.section-cobalt .form-success {
  color: #ffffff;
}

.section-header { max-width: 40rem; margin-bottom: 3rem; }
.section-label {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin-bottom: 0.85rem;
}
.section-title {
  font-size: clamp(1.85rem, 3.6vw, 2.55rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.12;
  margin-bottom: 0.85rem;
}
.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.problem-grid,
.trust-grid,
.wedge-grid {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.problem-card,
.trust-card,
.wedge-card {
  background: var(--bg);
  padding: 1.75rem 1.8rem;
}
.problem-card h3,
.trust-card h3,
.wedge-card h3 {
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
}
.problem-card p,
.trust-card p,
.wedge-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.lifecycle {
  display: grid;
  gap: 0;
  border: 1px solid var(--rule);
}
.life-step {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1rem;
  padding: 1.6rem 1.75rem;
  border-bottom: 1px solid var(--rule);
  align-items: start;
  position: relative;
  overflow: hidden;
}
.life-step:last-child { border-bottom: 0; }
.life-step > div {
  position: relative;
  z-index: 1;
}
.life-idx {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--accent-on-dark);
  padding-top: 0.2rem;
  position: relative;
  z-index: 1;
}

.life-idx::before {
  content: attr(data-num);
  position: absolute;
  right: -1.5rem;
  top: -1.25rem;
  font-size: 6rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.07;
  line-height: 1;
  pointer-events: none;
  z-index: 0;
  letter-spacing: -0.05em;
}
.life-step h3 {
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin-bottom: 0.45rem;
}
.life-step p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Platform */
.screenshot-carousel { max-width: 920px; margin: 0 auto; }
.carousel-viewport {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.carousel-arrow,
.lightbox-arrow,
.lightbox-close {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border: 1px solid var(--rule-strong);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 1.1rem;
}
.carousel-arrow:hover,
.lightbox-arrow:hover,
.lightbox-close:hover { border-color: var(--accent); }

.carousel-track-wrap { overflow: hidden; flex: 1; min-width: 0; }
.carousel-track { display: flex; }
.carousel-slide { display: none; width: 100%; }
.carousel-slide.is-active { display: block; }

.screenshot-frame {
  border: 1px solid var(--rule);
  background: var(--bg-card);
}
.screenshot-chrome {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-elevated);
}
.browser-dots { display: flex; gap: 5px; }
.browser-dots span {
  width: 7px;
  height: 7px;
  background: var(--rule-strong);
}
.screenshot-url {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
}
.screenshot-image-wrap { cursor: zoom-in; }
.screenshot-image-wrap img { width: 100%; height: auto; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.45rem;
  margin: 1rem 0 0.75rem;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border: 0;
  background: var(--rule-strong);
  cursor: pointer;
}
.carousel-dot.is-active { background: var(--accent); }

.carousel-caption {
  text-align: center;
  min-height: 2.6rem;
}
.carousel-caption-tag {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-on-dark);
  margin-right: 0.65rem;
}
.carousel-caption-desc { color: var(--text-muted); font-size: 0.92rem; }
.platform-note {
  text-align: center;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.screenshot-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(16, 19, 24, 0.92);
}
.screenshot-lightbox.is-open { display: block; }
.lightbox-backdrop { position: absolute; inset: 0; }
.lightbox-close { position: absolute; top: 1rem; right: 1rem; z-index: 2; }
.lightbox-arrow--prev { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); z-index: 2; }
.lightbox-arrow--next { position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); z-index: 2; }
.lightbox-stage {
  position: absolute;
  inset: 3.5rem 4.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-image { max-width: 100%; max-height: 100%; object-fit: contain; }

.coverage-panel,
.audit-panel {
  border: 1px solid var(--rule);
  padding: 2.25rem 2.5rem;
  background: var(--bg);
}
.coverage-proof {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
  max-width: 42rem;
}
.coverage-note {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.coverage-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}
.coverage-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.coverage-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.coverage-col li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border-subtle, rgba(255,255,255,0.06));
}
.coverage-col li::before {
  content: '— ';
  color: var(--color-accent, #1b3fe0);
}
@media (max-width: 640px) {
  .coverage-columns { grid-template-columns: 1fr; }
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.benefit-card {
  background: var(--surface-card, var(--bg-card));
  border: 1px solid var(--border-subtle, var(--rule));
  padding: 1.75rem 1.8rem;
}
.benefit-card h3 {
  font-size: 1.08rem;
  font-weight: 650;
  margin-bottom: 0.65rem;
  color: var(--text-primary, var(--text));
}
.benefit-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

.cta-title {
  font-size: clamp(1.7rem, 3.4vw, 2.35rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 0.7rem;
}

.form-section {
  border: 1px solid var(--rule);
  background: var(--bg-elevated);
  padding: 1.6rem;
  max-width: 640px;
}
.form-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.15rem;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.form-group input,
.form-group select {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--rule-strong);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}
.form-group input:focus,
.form-group select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.form-success { display: none; text-align: center; padding: 1.5rem 0.5rem; }
.form-success.is-visible { display: block; }
.form-success h3 { margin-bottom: 0.4rem; }

footer {
  border-top: 1px solid var(--rule);
  padding: 2.75rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-tagline {
  margin-top: 0.85rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 22rem;
}
.footer-col h4 {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.footer-col a {
  display: block;
  padding: 0.28rem 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}
.footer-col a:hover { color: var(--accent-on-dark); }
.footer-bottom {
  border-top: 1px solid var(--rule);
  padding-top: 1.15rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.theme-fab {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  width: 44px;
  height: 44px;
  z-index: 90;
  border: 1px solid var(--rule-strong);
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
}
.theme-fab:hover,
.theme-fab:focus-visible { border-color: var(--accent); }
html[data-theme="dark"] .theme-fab-icon-moon { display: none; }
html[data-theme="light"] .theme-fab-icon-sun { display: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (min-width: 640px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-group.full { grid-column: 1 / -1; }
  .problem-grid,
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .hero-facts { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .hero-layout { grid-template-columns: 1.15fr 0.85fr; gap: 3.5rem; }
  .problem-grid { grid-template-columns: 1fr 1fr 1fr 1fr; }
  .trust-grid { grid-template-columns: 1fr 1fr 1fr; }
  .wedge-grid { grid-template-columns: 1fr 1fr; }
  .hero-facts { grid-template-columns: 1fr 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}

@media (max-width: 767px) {
  .hero { padding: 7.25rem 0 3.25rem; }
  .btn-group { flex-direction: column; }
  .btn-group .btn { width: 100%; }
  .checkpoint { grid-template-columns: 3.4rem 1fr; }
  .checkpoint-state { grid-column: 2; }
  .nav-login { padding: 0.45rem 0.6rem; font-size: 0.78rem; }
  .nav-cta { padding: 0.45rem 0.7rem; font-size: 0.78rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .clearance-unit,
  .nav-toggle span { animation: none; transition: none; }
  .clearance-unit { opacity: 1; transform: none; }
}

/* ============================================================
   Coverage — Satellite Aesthetic + Animated Build
   ============================================================ */

#coverage { padding-bottom: 3rem; }

.cov-stage {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 2.5rem;
  border: 1px solid var(--rule);
  background: #060a12;
}

@media (min-width: 960px) {
  .cov-stage { grid-template-columns: 1fr 380px; }
}

.cov-map-frame {
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(27,63,224,0.2);
  background: #04070f;
  position: relative;
  overflow: hidden;
}

.cov-map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(27,63,224,0.2);
  background: rgba(6,10,18,0.95);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cov-map-header-left {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.cov-map-tag {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #6b8ff8;
  padding: 0.15rem 0.45rem;
  border: 1px solid rgba(27,63,224,0.4);
  background: rgba(27,63,224,0.08);
}

.cov-map-tag--dim {
  color: rgba(107,143,248,0.4);
  border-color: rgba(27,63,224,0.12);
  background: transparent;
}

.cov-legend {
  display: flex;
  gap: 1rem;
}
.cov-legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: rgba(139,163,204,0.6);
  text-transform: uppercase;
}
.cov-dot { width: 8px; height: 8px; flex-shrink: 0; display: inline-block; }
.cov-dot--pilot  { background: #1B3FE0; box-shadow: 0 0 5px rgba(27,63,224,0.9); }
.cov-dot--engine { background: rgba(75,111,255,0.35); border: 1px solid rgba(107,143,248,0.6); }
.cov-dot--planned{ background: transparent; border: 1px solid rgba(75,111,255,0.18); }

.cov-map-body { position: relative; flex: 1; }

.cov-fl-svg {
  width: 100%;
  height: auto;
  display: block;
  min-height: 480px;
}

.fl-county-path { cursor: pointer; transition: opacity 0.12s; }
.fl-county-path:hover { opacity: 0.8; }

.cov-scan-line {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(27,63,224,0.5), rgba(107,143,248,0.9), rgba(27,63,224,0.5), transparent);
  pointer-events: none;
  opacity: 0;
}

@keyframes fl-scan {
  0%   { top: 0; opacity: 0; }
  4%   { opacity: 1; }
  96%  { opacity: 0.5; }
  100% { top: 100%; opacity: 0; }
}

.cov-map-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 1.25rem;
  border-top: 1px solid rgba(27,63,224,0.15);
  background: rgba(6,10,18,0.95);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cov-coords {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.56rem;
  letter-spacing: 0.1em;
  color: rgba(107,143,248,0.5);
  text-transform: uppercase;
  transition: color 0.2s;
}

.cov-seq-inline {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.cov-seq-item {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.52rem;
  letter-spacing: 0.06em;
  padding: 0.1rem 0.3rem;
  border: 1px solid rgba(255,255,255,0.05);
  color: rgba(139,163,204,0.4);
  text-transform: uppercase;
}

.cov-seq--live {
  background: rgba(27,63,224,0.18);
  border-color: rgba(75,111,255,0.45);
  color: #6b8ff8;
  box-shadow: 0 0 6px rgba(27,63,224,0.25);
}

.cov-seq--next {
  background: rgba(27,63,224,0.08);
  border-color: rgba(75,111,255,0.25);
  color: rgba(107,143,248,0.6);
}

.cov-seq-arr {
  color: rgba(75,111,255,0.25);
  font-size: 0.5rem;
}

/* Side panel */
.cov-panel {
  display: flex;
  flex-direction: column;
  background: #060a12;
  border-left: 1px solid rgba(27,63,224,0.15);
}

.cov-panel-header {
  padding: 1.25rem 1.4rem 0.85rem;
  border-bottom: 1px solid rgba(27,63,224,0.12);
}

.cov-panel-title {
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.cov-panel-status {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(107,143,248,0.55);
  transition: color 0.2s;
}

.cov-panel-detail {
  padding: 0.9rem 1.4rem;
  font-size: 0.8rem;
  color: rgba(197,203,212,0.6);
  line-height: 1.65;
  border-bottom: 1px solid rgba(27,63,224,0.08);
}

.cov-panel-stats {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1px;
  background: rgba(27,63,224,0.1);
  border-bottom: 1px solid rgba(27,63,224,0.12);
}

.cov-panel-stat {
  background: #060a12;
  padding: 0.8rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.cov-panel-stat-n {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: #4B6FFF;
  line-height: 1;
  text-shadow: 0 0 10px rgba(75,111,255,0.35);
}

.cov-panel-stat-l {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.52rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(107,143,248,0.4);
}

.cov-panel-cta {
  display: block;
  padding: 0.9rem 1.4rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #4B6FFF;
  background: rgba(27,63,224,0.04);
  border-top: 1px solid rgba(27,63,224,0.18);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.cov-panel-cta:hover { background: rgba(27,63,224,0.1); color: #6b8ff8; }

.cov-disclaimer {
  margin-top: 1.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  max-width: 52rem;
  line-height: 1.65;
}

@media (max-width: 959px) {
  .cov-map-frame { border-right: none; border-bottom: 1px solid rgba(27,63,224,0.15); }
  .cov-seq-inline { display: none; }
  .cov-panel { border-left: none; border-top: 1px solid rgba(27,63,224,0.15); }
}

html[data-theme="light"] .cov-stage { background: var(--bg-elevated); border-color: var(--rule); }
html[data-theme="light"] .cov-map-frame { background: #f0f4fa; border-right-color: var(--rule); }
html[data-theme="light"] .cov-map-header { background: #e8edf5; border-bottom-color: var(--rule); }
html[data-theme="light"] .cov-map-tag { color: var(--accent); border-color: rgba(27,63,224,0.3); background: rgba(27,63,224,0.06); }
html[data-theme="light"] .cov-map-tag--dim { color: rgba(27,63,224,0.45); border-color: rgba(27,63,224,0.12); }
html[data-theme="light"] .cov-legend-item { color: var(--text-muted); }
html[data-theme="light"] .cov-map-footer { background: #e8edf5; border-top-color: var(--rule); }
html[data-theme="light"] .cov-coords { color: rgba(27,63,224,0.55); }
html[data-theme="light"] .cov-panel { background: var(--bg-elevated); border-left-color: var(--rule); }
html[data-theme="light"] .cov-panel-header { border-bottom-color: var(--rule); }
html[data-theme="light"] .cov-panel-title { color: var(--text); }
html[data-theme="light"] .cov-panel-status { color: var(--accent); }
html[data-theme="light"] .cov-panel-detail { color: var(--text-muted); border-bottom-color: var(--rule); }
html[data-theme="light"] .cov-panel-stats { background: var(--rule); border-bottom-color: var(--rule); }
html[data-theme="light"] .cov-panel-stat { background: var(--bg-elevated); }
html[data-theme="light"] .cov-panel-stat-n { color: var(--accent); text-shadow: none; }
html[data-theme="light"] .cov-panel-stat-l { color: var(--text-muted); }
html[data-theme="light"] .cov-panel-cta { color: var(--accent); background: rgba(27,63,224,0.05); border-top-color: var(--rule); }
html[data-theme="light"] .cov-panel-cta:hover { background: rgba(27,63,224,0.1); }
html[data-theme="light"] .cov-seq-item { color: var(--text-muted); border-color: var(--rule); }
html[data-theme="light"] .cov-seq--live { background: rgba(27,63,224,0.1); border-color: var(--accent); color: var(--accent); box-shadow: none; }
html[data-theme="light"] .cov-seq--next { background: rgba(27,63,224,0.05); border-color: rgba(27,63,224,0.3); color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  .cov-scan-line { animation: none !important; }
  .fl-county-path { transition: none; }
}