/* ============================================================================
   THE 49TH — LANDING PAGE
   Minimal, single column, hero-led. Pre-launch email capture.
   ============================================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-app);
  color: var(--fg-1);
  font-family: var(--font-sans);
  font-size: var(--t-body);
  line-height: var(--lh-normal);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; color: inherit; }
input { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ---------- Page shell --------------------------------------------------- */
.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 56px 80px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---------- Top bar ------------------------------------------------------ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-hairline);
}
.topbar .markRow {
  display: flex;
  align-items: center;
  gap: 14px;
}
.markRow img {
  height: 140px;
  width: auto;
  display: block;
  object-fit: contain;
}
.topbar .meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
}
.topbar .meta .dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  margin-right: 8px;
  vertical-align: 1px;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- Hero --------------------------------------------------------- */
.hero {
  padding: 96px 0 56px;
  flex: 1;
}

.hero .eyebrow {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--signal-pressed);
  margin: 0 0 28px;
}

.hero h1 {
  font-size: clamp(40px, 5.6vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 600;
  margin: 0 0 26px;
  text-wrap: balance;
}

.hero .dek {
  font-size: 19px;
  line-height: 1.5;
  color: var(--fg-2);
  margin: 0 0 44px;
  max-width: 560px;
}
.hero .dek em {
  font-style: normal;
  color: var(--fg-1);
}

/* ---------- Email signup -------------------------------------------------- */
.signup {
  margin-top: 12px;
}
.signup .label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
  margin-bottom: 12px;
}

.emailRow {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  width: 100%;
}
.emailRow input {
  height: 52px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-pill);
  background: var(--bg-surface);
  padding: 0 22px;
  font-size: 15px;
  color: var(--fg-1);
  outline: none;
  transition: border-color var(--dur-fast) var(--easing);
}
.emailRow input::placeholder {
  color: var(--fg-3);
}
.emailRow input:focus-visible {
  border-color: var(--fg-1);
  outline: 2px solid var(--fg-1);
  outline-offset: 2px;
}
.emailRow input.invalid {
  border-color: var(--signal);
}
.emailRow button:focus-visible {
  outline: 2px solid var(--fg-1);
  outline-offset: 3px;
}
.emailRow button {
  height: 52px;
  border: 0;
  background: var(--signal);
  color: var(--fg-on-red);
  border-radius: var(--r-pill);
  padding: 0 28px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background var(--dur-fast) var(--easing), transform var(--dur-fast) var(--easing);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.emailRow button:hover { background: var(--signal-hover); }
.emailRow button:active { background: var(--signal-pressed); transform: translateY(1px); }
.emailRow button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}
.emailRow button .arrow {
  width: 16px;
  height: 16px;
  display: inline-block;
}

.formNote {
  margin-top: 14px;
  font-size: 12px;
  color: var(--fg-2);
  letter-spacing: 0.02em;
}
.formNote.error {
  color: var(--signal-pressed);
}

/* success state */
.success {
  margin-top: 12px;
  width: 100%;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  padding: 20px 22px;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  align-items: start;
  animation: fadeIn 220ms var(--easing);
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.success .check {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--signal);
  color: var(--fg-on-red);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.success .check svg { width: 18px; height: 18px; display: block; }
.success .body strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  color: var(--fg-1);
}
.success .body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--fg-2);
}
.success .body p .em {
  color: var(--fg-1);
  font-weight: 500;
}

/* ---------- Visually hidden (a11y / SEO heading) ------------------------ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Signals strip (product tease) -------------------------------- */
.signalsStrip {
  margin-top: 64px;
  padding-top: 26px;
  border-top: 1px solid var(--border-hairline);
}
.signalsStrip .stripLabel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
}
.signalsStrip .stripLabel span:first-child {
  font-size: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  font-weight: inherit;
  color: inherit;
}
.signalsStrip .stripLabel .live {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.signalsStrip .stripLabel .live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  display: inline-block;
  animation: pulse 2.4s ease-in-out infinite;
}

.signalRow {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--border-hairline);
  font-size: 14px;
  line-height: 1.4;
}
.signalRow:last-child { border-bottom: 0; }
.signalRow .text { color: var(--fg-1); }
.signalRow time {
  font-size: 11px;
  color: var(--fg-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ---------- Counter / what we track -------------------------------------- */
.counter {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  overflow: hidden;
}
.counter .cell {
  padding: 24px 22px;
  border-right: 1px solid var(--border-hairline);
}
.counter .cell:last-child { border-right: 0; }
.counter .num {
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--fg-1);
  font-variant-numeric: tabular-nums;
  margin: 0 0 10px;
}
.counter .label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
  margin: 0;
}

/* ---------- "What we track" list ----------------------------------------- */
.tracks {
  margin-top: 64px;
  padding-top: 26px;
  border-top: 1px solid var(--border-hairline);
}
.tracks .stripLabel {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
  margin: 0 0 18px;
}
.tracks .grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--border-hairline);
}
.tracks .item {
  padding: 22px 0;
  border-bottom: 1px solid var(--border-hairline);
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 14px;
  align-items: baseline;
}
.tracks .item:nth-child(odd) { padding-right: 24px; }
.tracks .item:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--border-hairline); }
.tracks .item .num {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
  font-variant-numeric: tabular-nums;
}
.tracks .item h3 {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--fg-1);
}
.tracks .item p {
  font-size: 13px;
  line-height: 1.45;
  color: var(--fg-2);
  margin: 0;
}

/* ---------- Footer ------------------------------------------------------- */
.footer {
  margin-top: 96px;
  padding-top: 22px;
  border-top: 1px solid var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-2);
  gap: 24px;
}
.footer a:hover { color: var(--signal-pressed); }
.footer a:focus-visible {
  outline: 2px solid var(--fg-1);
  outline-offset: 3px;
}
.footer .socials {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}
.footer .socials a {
  display: inline-flex;
  align-items: center;
  width: 14px;
  height: 14px;
}
.footer .socials a svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
  display: block;
}
.footer .links {
  display: flex;
  gap: 28px;
}

/* ---------- Reduced motion ---------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .topbar .meta .dot,
  .signalsStrip .stripLabel .live::before {
    animation: none;
  }
  .success {
    animation: none;
  }
}

/* ---------- Responsive --------------------------------------------------- */
@media (max-width: 720px) {
  .page { padding: 32px 24px 56px; }
  .hero { padding: 64px 0 40px; }
  .topbar .meta { display: none; }
  .emailRow { grid-template-columns: 1fr; }
  .emailRow button { width: 100%; justify-content: center; }
  .counter { grid-template-columns: repeat(2, 1fr); }
  .counter .cell:nth-child(2) { border-right: 0; }
  .counter .cell:nth-child(1), .counter .cell:nth-child(2) {
    border-bottom: 1px solid var(--border-hairline);
  }
  .tracks .grid { grid-template-columns: 1fr; }
  .tracks .item:nth-child(odd), .tracks .item:nth-child(even) {
    padding: 22px 0;
    border-left: 0;
  }
  .footer { flex-direction: column; align-items: flex-start; gap: 16px; }
}