:root {
  --navy-900: #0B1E36;
  --navy-800: #112A47;
  --navy-700: #173556;
  --blue-500: #2F6BEB;
  --blue-400: #4F87FF;
  --blue-100: #E6EEFB;
  --amber:    #F5A524;
  --red:      #E5484D;
  --ink:      #0F172A;
  --ink-2:    #334155;
  --ink-3:    #64748B;
  --bg:       #FFFFFF;
  --bg-muted: #F7F9FC;
  --border:   #E3E8F0;
  --radius:   14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 60px rgba(11, 30, 54, 0.18);
  --max: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { margin: 0 0 0.6em; letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p  { margin: 0 0 1em; color: var(--ink-2); }

a { color: var(--blue-500); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 760px; }

/* ------ NAV ------ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 30, 54, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  color: #fff; text-decoration: none; font-weight: 700;
}
.logo-mark {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
  color: #fff; font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 14px rgba(47, 107, 235, 0.45);
}
.logo-word { font-size: 1.1rem; letter-spacing: -0.01em; }
.nav-links {
  margin-left: auto;
  display: flex; gap: 28px;
}
.nav-links a {
  color: rgba(255,255,255,0.72);
  font-size: 0.93rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: #fff; }

/* ------ BUTTONS ------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}
.btn-sm { padding: 9px 18px; font-size: 0.88rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
  color: #fff;
  box-shadow: 0 8px 22px rgba(47, 107, 235, 0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(47, 107, 235, 0.45); }

/* ------ HERO ------ */
.hero {
  position: relative;
  background: radial-gradient(ellipse at top, #173556 0%, #0B1E36 60%);
  color: #fff;
  padding: 120px 0 130px;
  overflow: hidden;
}
.hero-inner { position: relative; max-width: 900px; margin: 0 auto; text-align: center; padding: 0 24px; }
.hero h1 { color: #fff; }
.hero .accent {
  background: linear-gradient(135deg, #6BA0FF, #2F6BEB);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: rgba(255,255,255,0.78);
  max-width: 680px;
  margin: 0 auto 36px;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue-400);
  padding: 6px 14px;
  border: 1px solid rgba(79, 135, 255, 0.35);
  border-radius: 999px;
  margin-bottom: 22px;
  background: rgba(47, 107, 235, 0.08);
}
.eyebrow.dark {
  color: var(--blue-500);
  border-color: rgba(47, 107, 235, 0.25);
  background: rgba(47, 107, 235, 0.06);
}
.hero-foot {
  margin-top: 26px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.hero-glow {
  position: absolute;
  inset: auto 0 -40% 0;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(47,107,235,0.28), transparent 60%);
  pointer-events: none;
}

/* ------ SIGNUP FORM ------ */
.signup {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 520px;
  margin: 0 auto;
}
.signup-lg { max-width: 560px; }
.signup input[type=email] {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06);
  padding: 16px 22px;
  font: inherit;
  font-size: 1rem;
  color: #fff;
  outline: none;
  border-radius: 999px;
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
}
.signup input::placeholder { color: rgba(255,255,255,0.45); }
.signup input:focus {
  border-color: var(--blue-400);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 4px rgba(47, 107, 235, 0.18);
}
.signup input:disabled { opacity: 0.6; cursor: not-allowed; }

/* Slide to unlock */
.slide-unlock {
  position: relative;
  height: 60px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  overflow: hidden;
  user-select: none;
  touch-action: none;
  box-shadow: 0 18px 50px rgba(0,0,0,0.28);
}
.slide-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 0;
  background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
  border-radius: 999px;
  z-index: 1;
}
.slide-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.78);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  pointer-events: none;
  z-index: 2;
  padding-left: 56px;
}
.slide-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  display: grid;
  place-items: center;
  cursor: grab;
  box-shadow: 0 6px 18px rgba(0,0,0,0.28);
  z-index: 3;
  transform: translateX(0);
  touch-action: none;
}
.slide-thumb:active { cursor: grabbing; }
.slide-thumb svg { width: 22px; height: 22px; color: var(--blue-500); }

.slide-unlock.is-resetting .slide-thumb,
.slide-unlock.is-resetting .slide-fill {
  transition: transform 0.4s cubic-bezier(.4,0,.2,1), width 0.4s cubic-bezier(.4,0,.2,1);
}
.slide-unlock.is-resetting .slide-label {
  transition: opacity 0.4s ease;
}
.slide-unlock.is-locked {
  border-color: transparent;
}
.slide-unlock.is-locked .slide-label {
  color: #fff;
}
.slide-unlock.is-success .slide-thumb svg { color: #2F6BEB; }

.form-status {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  text-align: center;
  min-height: 1em;
}
.form-status.success { color: #5EE9A1; }
.form-status.error { color: #FFB4B4; }

/* ------ SECTIONS ------ */
.section { padding: 100px 0; }
.section-muted { background: var(--bg-muted); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .eyebrow { margin-bottom: 16px; }
.body-lg { font-size: 1.1rem; color: var(--ink-2); }
.caption { text-align: center; color: var(--ink-3); font-size: 0.92rem; margin-top: 30px; font-style: italic; }

/* ------ TIMELINE ------ */
.timeline {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 28px 28px;
  box-shadow: var(--shadow-md);
  overflow-x: auto;
}
.timeline-track { display: none; }
.timeline-steps {
  display: grid;
  grid-template-columns: repeat(7, minmax(120px, 1fr));
  gap: 10px;
  position: relative;
  min-width: 820px;
}
.timeline-steps::before {
  content: '';
  position: absolute;
  left: 5%;
  right: 5%;
  top: calc(50% - 2px);
  height: 2px;
  background: var(--border);
  border-radius: 2px;
}
.tl-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  gap: 14px;
}
.tl-card {
  background: #fff;
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  min-height: 48px;
  display: grid;
  place-items: center;
  width: 100%;
}
.tl-card-dark {
  background: var(--navy-900);
  color: #fff;
  border-color: var(--navy-900);
}
.tl-dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink-3);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--ink-3);
  position: relative;
  z-index: 2;
}
.tl-warn .tl-card { border-color: rgba(245, 165, 36, 0.5); background: #FFF8EC; }
.tl-warn .tl-dot { background: var(--amber); box-shadow: 0 0 0 2px var(--amber); }
.tl-crit .tl-card { border-color: rgba(229, 72, 77, 0.45); background: #FDECED; }
.tl-crit .tl-dot { background: var(--red); box-shadow: 0 0 0 2px var(--red); }
.tl-seen .tl-dot { background: var(--blue-500); box-shadow: 0 0 0 2px var(--blue-500); }
.tl-end .tl-dot { background: var(--navy-900); box-shadow: 0 0 0 2px var(--navy-900); }
.tl-week { font-size: 0.78rem; color: var(--ink-3); font-weight: 500; }
.tl-seen-label {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--blue-500);
}
.timeline-legend {
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--ink-3);
}
.timeline-legend .lg {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.lg-warn { background: var(--amber); }
.lg-crit { background: var(--red); }
.lg-seen { background: var(--blue-500); }

/* ------ GRIDS / CARDS ------ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
  color: #fff;
  display: grid; place-items: center;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 6px 18px rgba(47, 107, 235, 0.3);
}

.signal-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
}
.signal-card h3 { font-size: 1.3rem; margin-bottom: 6px; }
.signal-card .sub { color: var(--ink-3); font-size: 0.92rem; margin-bottom: 20px; }
.signal-card ul { list-style: none; padding: 0; margin: 0; }
.signal-card li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--ink-2);
}
.signal-card li:last-child { border-bottom: none; }
.signal-card strong { color: var(--ink); }

/* ------ INSIGHTS ------ */
.insights {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}
.insight {
  background: #fff;
  border-radius: var(--radius);
  padding: 22px 26px;
  border: 1px solid var(--border);
  border-left-width: 5px;
  box-shadow: var(--shadow-sm);
}
.insight-crit { border-left-color: var(--red); background: linear-gradient(90deg, #FFF5F6, #fff 30%); }
.insight-warn { border-left-color: var(--amber); background: linear-gradient(90deg, #FFFAEF, #fff 30%); }
.insight-info { border-left-color: var(--blue-500); background: linear-gradient(90deg, #F0F5FF, #fff 30%); }
.insight-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.insight-dot { width: 10px; height: 10px; border-radius: 50%; }
.insight-crit .insight-dot { background: var(--red); }
.insight-warn .insight-dot { background: var(--amber); }
.insight-info .insight-dot { background: var(--blue-500); }
.insight-level {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
}
.insight-body { margin: 0 0 6px; font-size: 1rem; color: var(--ink); }
.insight-meta { margin: 0; font-size: 0.85rem; color: var(--ink-3); }

/* ------ WON'T DO ------ */
.wontdo {
  list-style: none;
  padding: 0;
  margin: 30px 0 0;
  display: grid;
  gap: 14px;
}
.wontdo li {
  background: #fff;
  border: 1px solid var(--border);
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  color: var(--ink-2);
}
.wontdo strong { color: var(--ink); display: block; margin-bottom: 2px; }

/* ------ CTA ------ */
.cta {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-900));
  color: #fff;
  padding: 110px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(47,107,235,0.25), transparent 55%);
}
.cta-inner { position: relative; max-width: 720px; margin: 0 auto; padding: 0 24px; }
.cta h2 { color: #fff; margin-bottom: 12px; }
.cta p { color: rgba(255,255,255,0.72); margin-bottom: 30px; }

/* ------ FOOTER ------ */
.footer {
  background: var(--navy-900);
  color: rgba(255,255,255,0.55);
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 600; }
.footer-meta { display: flex; gap: 22px; font-size: 0.85rem; }
.footer-meta a { color: rgba(255,255,255,0.7); }
.footer-meta a:hover { color: #fff; }

/* ------ REVEAL ANIMATION ------ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ------ RESPONSIVE ------ */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 90px; }
  .section { padding: 72px 0; }
  .footer-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 640px) {
  h1 { font-size: 2rem; }
  .timeline { padding: 28px 16px; }
}