:root {
  --ink: #0a0a0a;
  --paper: #ffffff;
  --line: rgba(10, 10, 10, 0.14);
  --line-strong: rgba(10, 10, 10, 0.85);
  --muted: rgba(10, 10, 10, 0.6);
  --faint: rgba(10, 10, 10, 0.4);
  --accent: #2f7d5c;
  --accent-soft: rgba(47, 125, 92, 0.1);
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", "SFMono-Regular", Consolas, monospace;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
  position: relative;
}

.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;
}

/* ---------- Background texture ---------- */

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout ---------- */

.site-header, main, .site-footer {
  position: relative;
  z-index: 2;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 24px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-name em {
  font-style: normal;
  font-weight: 500;
  color: var(--muted);
}

.header-cta {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 9px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.header-cta:hover {
  background: var(--ink);
  color: var(--paper);
}

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 8vh 24px 4vh;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 18px;
}

h1 {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: clamp(2.1rem, 5.4vw, 3.7rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 22px;
}

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

.lede {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
  margin: 0 0 48px;
}

/* ---------- Countdown: element tiles ---------- */

.countdown {
  display: flex;
  gap: 14px;
  margin-bottom: 44px;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 84px;
  padding: 16px 8px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 14px;
}

.countdown-unit .value {
  font-family: var(--font-body);
  font-size: 1.9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.countdown-unit .label {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- Form ---------- */

.notify-form {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 440px;
}

.notify-form input {
  flex: 1;
  padding: 15px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
  font-size: 0.95rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s ease;
}

.notify-form input::placeholder {
  color: var(--faint);
}

.notify-form input:focus {
  border-color: var(--accent);
}

.notify-form input:invalid.touched {
  border-color: #c23b3b;
}

.notify-form button {
  flex-shrink: 0;
  padding: 15px 26px;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.notify-form button:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.notify-form button:active {
  transform: translateY(0);
}

.notify-form button:disabled {
  opacity: 0.6;
  cursor: default;
  transform: none;
}

.form-note {
  margin: 16px 0 0;
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.2em;
}

.form-note.success {
  color: var(--accent);
  font-weight: 600;
}

.form-note.error {
  color: #c23b3b;
  font-weight: 600;
}

@media (max-width: 480px) {
  .notify-form {
    flex-direction: column;
  }
  .notify-form button {
    width: 100%;
  }
  .countdown {
    gap: 8px;
  }
  .countdown-unit {
    width: 70px;
    padding: 12px 4px;
  }
}

/* ---------- Pillars ---------- */

.pillars {
  max-width: var(--max-width);
  margin: 4vh auto 0;
  padding: 0 24px 10vh;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pillar {
  position: relative;
  padding: 28px 22px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 16px;
  text-align: left;
  transition: border-color 0.2s ease;
}

.pillar:hover {
  border-color: var(--accent);
}

.pillar svg {
  width: 26px;
  height: 26px;
  color: var(--ink);
  margin-bottom: 14px;
}

.pillar h3 {
  font-family: var(--font-body);
  font-size: 1.08rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.pillar p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--muted);
}

@media (max-width: 780px) {
  .pillars {
    grid-template-columns: 1fr;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.social-links {
  display: flex;
  gap: 14px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  color: var(--ink);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.social-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.social-links svg {
  width: 17px;
  height: 17px;
}

.site-footer > p:last-child {
  margin: 0;
  font-size: 0.82rem;
  color: var(--faint);
}