:root {
  --bg: #0e1116;
  --surface: #171b22;
  --surface-2: #1e242e;
  --border: #2a313d;
  --text: #e8ecf1;
  --text-dim: #9aa4b2;
  --accent: #4f7cff;
  --accent-hover: #6a90ff;
  --violet: #8a5cf6;
  --red: #e5484d;
  --amber: #f0b429;
  --green: #3dd68c;
  --radius: 14px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(14, 17, 22, 0.8);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.brand-mark {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  border-radius: 10px;
  font-weight: 800; font-size: 19px; color: #fff;
  flex-shrink: 0;
}
.brand-mark.small { width: 28px; height: 28px; font-size: 15px; border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent); color: #fff !important;
  padding: 8px 16px; border-radius: 9px; font-weight: 600 !important;
}
.nav-cta:hover { background: var(--accent-hover); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  max-width: 860px; margin: 0 auto;
  padding: 96px 24px 72px;
  text-align: center;
}
.hero-glow {
  position: absolute; inset: -120px 0 auto 50%;
  width: 720px; height: 480px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(79, 124, 255, 0.18), transparent 65%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent-hover);
  background: rgba(79, 124, 255, 0.1);
  border: 1px solid rgba(79, 124, 255, 0.3);
  padding: 5px 14px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(34px, 5.4vw, 58px);
  font-weight: 900; line-height: 1.12; letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.grad {
  background: linear-gradient(100deg, var(--accent), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  font-size: 17px; color: var(--text-dim);
  max-width: 640px; margin: 0 auto 34px;
}
.hero-note { font-size: 13px; color: var(--text-dim); margin-top: 16px; }

/* ---------- waitlist form ---------- */
.waitlist-form {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
}
.waitlist-form input {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 13px 16px;
  font-size: 15px; font-family: inherit;
  min-width: 190px;
  transition: border-color 0.15s;
}
.waitlist-form input:focus { outline: none; border-color: var(--accent); }
.waitlist-form input::placeholder { color: var(--text-dim); }
.btn-cta {
  background: linear-gradient(100deg, var(--accent), var(--violet));
  color: #fff; border: none; cursor: pointer;
  border-radius: 10px; padding: 13px 24px;
  font-size: 15px; font-weight: 700; font-family: inherit;
  transition: transform 0.12s, box-shadow 0.12s;
}
.btn-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(79, 124, 255, 0.35); }
.btn-cta:disabled { opacity: 0.6; cursor: default; transform: none; box-shadow: none; }
.form-msg { min-height: 22px; margin-top: 12px; font-size: 14px; font-weight: 600; }
.form-msg.ok { color: var(--green); }
.form-msg.err { color: var(--red); }

/* ---------- sections ---------- */
section { padding: 72px 24px; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 800; letter-spacing: -0.01em; margin-bottom: 10px; }
.section-head p { color: var(--text-dim); font-size: 16px; }

/* ---------- demo stage ---------- */
.demo { max-width: 1060px; margin: 0 auto; padding-top: 24px; }
.demo-stage {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}
.browser-chrome {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
}
.browser-dots { display: flex; gap: 6px; }
.browser-dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--border); }
.browser-dots i:nth-child(1) { background: #e5484d; }
.browser-dots i:nth-child(2) { background: #f0b429; }
.browser-dots i:nth-child(3) { background: #3dd68c; }
.browser-url {
  flex: 1; max-width: 320px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 12px; color: var(--text-dim);
  padding: 5px 14px;
}
.browser-ext-icon {
  position: relative;
  margin-left: auto;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  border-radius: 8px;
  font-weight: 800; font-size: 14px; color: #fff;
}
.browser-ext-icon.pulse { animation: iconPulse 1s ease infinite; }
@keyframes iconPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79, 124, 255, 0.6); }
  50% { box-shadow: 0 0 0 8px rgba(79, 124, 255, 0); }
}
.ext-badge {
  position: absolute; top: -6px; right: -7px;
  background: var(--red); color: #fff;
  font-size: 10px; font-weight: 800;
  min-width: 16px; height: 16px;
  display: none; place-items: center;
  border-radius: 999px; padding: 0 4px;
}
.ext-badge.show { display: grid; animation: popIn 0.3s ease; }

.demo-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  min-height: 560px;
}

/* fake inbox */
.demo-inbox { border-right: 1px solid var(--border); background: var(--bg); }
.inbox-header {
  padding: 12px 18px;
  font-size: 13px; font-weight: 700; color: var(--text-dim);
  letter-spacing: 0.05em; text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.inbox-list { padding: 6px 0; }
.inbox-row {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 18px;
  border-bottom: 1px solid rgba(42, 49, 61, 0.5);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease, background 0.3s;
}
.inbox-row.show { opacity: 1; transform: none; }
.inbox-row.scanning { background: rgba(79, 124, 255, 0.08); }
.inbox-row.flagged .inbox-from::before {
  content: "●"; color: var(--red); margin-right: 7px; font-size: 10px;
}
.inbox-row.ignored { opacity: 0.35; }
.inbox-avatar {
  width: 32px; height: 32px; flex-shrink: 0;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700; color: #fff;
}
.inbox-text { min-width: 0; }
.inbox-from { font-size: 13px; font-weight: 700; }
.inbox-subject { font-size: 12.5px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.inbox-tag {
  margin-left: auto; flex-shrink: 0;
  font-size: 10px; font-weight: 800; letter-spacing: 0.05em;
  padding: 3px 8px; border-radius: 999px;
  opacity: 0; transition: opacity 0.3s;
}
.inbox-tag.show { opacity: 1; }
.inbox-tag.flag { background: rgba(229, 72, 77, 0.15); color: #ff8589; }
.inbox-tag.noise { background: var(--surface-2); color: var(--text-dim); }

/* side panel */
.demo-panel {
  background: var(--surface);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.demo-panel.open { transform: none; }
.panel-top {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.panel-tagline { font-size: 10.5px; color: var(--text-dim); }
.panel-scan {
  margin-left: auto;
  background: var(--accent); color: #fff;
  border: none; border-radius: 7px;
  font-size: 11.5px; font-weight: 700; font-family: inherit;
  padding: 6px 10px;
}
.panel-scan.scanning { background: var(--surface-2); color: var(--accent-hover); }
.panel-status {
  padding: 7px 14px;
  font-size: 11.5px; color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.panel-events { padding: 12px; overflow: hidden; flex: 1; }

/* bucket labels — identical to the real side panel */
.demo-bucket { margin-bottom: 14px; }
.bucket-label {
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 7px;
  display: flex; align-items: center; gap: 6px;
}
.bucket-label::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.bucket-label.urgent { color: var(--red); }
.bucket-label.urgent::before { background: var(--red); }
.bucket-label.attention { color: var(--amber); }
.bucket-label.attention::before { background: var(--amber); }
.bucket-label.upcoming { color: var(--text-dim); }
.bucket-label.upcoming::before { background: var(--text-dim); }

.demo-event {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 11px 12px;
  margin-bottom: 9px;
  opacity: 0; transform: translateY(12px) scale(0.98);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.demo-event.show { opacity: 1; transform: none; }
.demo-event-head {
  display: flex; align-items: center; gap: 7px;
  font-size: 10px; margin-bottom: 6px;
}
.sev-dot { width: 8px; height: 8px; border-radius: 50%; }
.sev-dot.high { background: var(--red); box-shadow: 0 0 6px var(--red); }
.sev-dot.medium { background: var(--amber); }
.cat-chip {
  background: var(--bg); color: var(--text-dim);
  border-radius: 999px; padding: 2px 8px;
  font-weight: 700; letter-spacing: 0.04em;
}
.demo-event-date { margin-left: auto; color: var(--red); font-weight: 700; }
.demo-event-title { font-size: 13.5px; font-weight: 700; margin-bottom: 3px; }
.demo-event-sum { font-size: 11.5px; color: var(--text-dim); line-height: 1.45; margin-bottom: 8px; }

.demo-event-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  margin-bottom: 8px; font-size: 11px;
}
.demo-entity { color: var(--text-dim); font-weight: 600; }
.money-chip-demo {
  background: rgba(229, 72, 77, 0.15); color: #ff8589;
  border-radius: 6px; padding: 2px 7px; font-weight: 700; font-size: 10.5px;
}
.savings-pill {
  background: rgba(61, 214, 140, 0.12); color: var(--green);
  font-size: 10.5px; font-weight: 800;
  border-radius: 6px; padding: 2px 7px;
}

.demo-event-actions { display: flex; gap: 6px; margin-bottom: 8px; }

.demo-manage {
  display: flex; gap: 11px;
  border-top: 1px solid var(--border);
  padding-top: 7px;
  font-size: 10.5px; color: var(--text-dim);
}
.demo-manage span { cursor: default; }
.demo-act {
  font-size: 11px; font-weight: 700; font-family: inherit;
  border-radius: 7px; padding: 5px 10px;
  border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
}
.demo-act.primary { background: var(--accent); border-color: var(--accent); color: #fff; }

.demo-caption {
  padding: 13px 18px;
  text-align: center;
  font-size: 14px; font-weight: 600;
  color: var(--accent-hover);
  border-top: 1px solid var(--border);
  background: var(--surface-2);
  transition: opacity 0.3s;
}
.demo-replay {
  position: absolute; top: 9px; right: 14px;
  background: none; border: none; cursor: pointer;
  color: var(--text-dim); font-size: 12px; font-weight: 600; font-family: inherit;
}
.demo-replay:hover { color: var(--text); }
.demo-footnote { text-align: center; color: var(--text-dim); font-size: 13px; margin-top: 18px; }

@keyframes popIn {
  from { transform: scale(0); } to { transform: scale(1); }
}

/* ---------- features ---------- */
.features { max-width: 1060px; margin: 0 auto; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.15s, border-color 0.15s;
}
.feature-card:hover { transform: translateY(-3px); border-color: rgba(79, 124, 255, 0.45); }
.feature-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 12px;
  font-size: 20px; font-weight: 800;
  margin-bottom: 16px;
}
.feature-icon.leak { background: rgba(229, 72, 77, 0.14); color: #ff8589; }
.feature-icon.expire { background: rgba(240, 180, 41, 0.14); color: var(--amber); }
.feature-icon.deadline { background: rgba(79, 124, 255, 0.14); color: var(--accent-hover); }
.feature-icon.travel { background: rgba(61, 214, 140, 0.14); color: var(--green); }
.feature-card h3 { font-size: 17px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-dim); }

/* ---------- how ---------- */
.how { max-width: 1060px; margin: 0 auto; }
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.steps li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.step-num {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff; font-weight: 800; font-size: 15px;
  margin-bottom: 14px;
}
.steps h3 { font-size: 16px; margin-bottom: 7px; }
.steps p { font-size: 14px; color: var(--text-dim); }

/* ---------- cta ---------- */
.cta { max-width: 860px; margin: 0 auto; }
.cta-card {
  background: linear-gradient(140deg, rgba(79, 124, 255, 0.12), rgba(138, 92, 246, 0.1));
  border: 1px solid rgba(79, 124, 255, 0.35);
  border-radius: 20px;
  padding: 52px 32px;
  text-align: center;
}
.cta-card h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; margin-bottom: 10px; }
.cta-card > p { color: var(--text-dim); margin-bottom: 28px; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px 44px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  text-align: center;
}
.footer p { color: var(--text-dim); font-size: 13px; }

/* ---------- responsive ---------- */
@media (max-width: 820px) {
  .demo-body { grid-template-columns: 1fr; }
  .demo-inbox { border-right: none; border-bottom: 1px solid var(--border); }
  .demo-panel { transform: translateY(20px); opacity: 0; transition: transform 0.5s, opacity 0.5s; }
  .demo-panel.open { transform: none; opacity: 1; }
  .nav-links a:not(.nav-cta) { display: none; }
}