/* PANTE landing — dark-first, cyan accent. Aligned with app main.css dark palette. */
:root {
  --bg: #0a0a0a;
  --bg-elev: #141414;
  --border: #262626;
  --text: #ededed;
  --muted: #a3a3a3;
  --accent: #22d3ee;
  --accent-strong: #67e8f9;
  --radius: 12px;
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.accent {
  color: var(--accent);
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  border-radius: 7px;
  display: block;
}

.brand-name {
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #04141a;
  font-weight: 650;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  background: var(--accent-strong);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.9rem;
  color: #04141a;
}

/* Layout */
main {
  display: block;
}

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 84px 24px;
}

.section-narrow {
  max-width: 760px;
}

.section-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 32px;
  text-align: center;
}

.lead {
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  margin: 0 auto;
  max-width: 680px;
}

.lead.center,
.center {
  text-align: center;
}

/* Hero */
.hero {
  max-width: 860px;
  margin: 0 auto;
  padding: clamp(64px, 12vw, 128px) 24px 72px;
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-family: var(--mono);
  color: var(--accent);
  margin: 0 0 20px;
}

.hero-title {
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  font-weight: 750;
}

.hero-sub {
  color: var(--muted);
  font-size: clamp(1.05rem, 2.6vw, 1.35rem);
  max-width: 620px;
  margin: 0 auto 36px;
}

.hero-sub strong {
  color: var(--text);
}

.hero-tag {
  margin: 28px 0 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
}

/* Waitlist form */
.waitlist {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.waitlist-input {
  flex: 1 1 240px;
  min-width: 0;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elev);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}

.waitlist-input::placeholder {
  color: #6b7280;
}

.waitlist-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
}

.waitlist-status {
  min-height: 1.4em;
  margin: 14px 0 0;
  font-size: 0.95rem;
  text-align: center;
}

.waitlist-status.ok {
  color: var(--accent-strong);
}

.waitlist-status.err {
  color: #f87171;
}

.fine,
.footer-fine {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.fine {
  margin-top: 16px;
}

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

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--muted);
}

/* Feature list */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 36px auto 0;
  max-width: 620px;
  display: grid;
  gap: 14px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 1.05rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

/* FAQ */
.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 20px;
}

.faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font-weight: 400;
}

.faq details[open] summary::after {
  content: "−";
}

.faq details p {
  margin: 0 0 16px;
  color: var(--muted);
}

/* CTA section */
.cta {
  text-align: center;
  border-top: 1px solid var(--border);
}

/* Footer */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 24px 64px;
  border-top: 1px solid var(--border);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-fine {
  margin: 24px 0 0;
  text-align: left;
  font-family: var(--mono);
}

/* Responsive */
@media (max-width: 760px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 60px 20px;
  }
}