/* Nuggs countdown. Tokens and primitives follow the brand book and the
   Welcome (signed out) screen in the design handoff. */

:root {
  /* Color */
  --ink: #0b1220;
  --slate-900: #1b2640;
  --slate-700: #34425f;
  --slate-500: #5c6b89;
  --slate-300: #a7b1c4;
  --slate-100: #e4e8f0;
  --paper: #f5f4ee;
  --bone: #faf9f4;
  --gold: #c7a664;
  --gold-deep: #9a7e3f;

  /* Type */
  --serif: 'Source Serif 4', 'Iowan Old Style', Georgia, serif;
  --sans: 'Inter Tight', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  --text-eyebrow: 0.625rem;
  /* Sized from the column width so "Then close the app." always fits on one line. */
  --text-hero-fallback: clamp(2.125rem, 11vw, 6.5rem);
  --text-hero: clamp(2.125rem, 12.6cqi, 6.5rem);
  --text-unit: clamp(2.25rem, 1.5rem + 3vw, 3.5rem);

  /* Shape and motion */
  --radius: 4px;
  --transition: 120ms ease;

  /* Layout */
  --gutter: clamp(1.5rem, 4.5vw, 4rem);
  --measure: 32.5rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 90rem;
  margin-inline: auto;
  padding: clamp(1.5rem, 3vw, 2rem) var(--gutter) clamp(1.25rem, 2.5vw, 1.75rem);
}

/* === Atoms === */

.eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: var(--text-eyebrow);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.eyebrow--gold {
  color: var(--gold);
}

.eyebrow--on-ink {
  color: var(--slate-300);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition);
}

.btn--lg {
  height: 52px;
  padding: 0 28px;
  font-size: 0.9375rem;
}

.btn--gold {
  background: var(--gold);
  color: var(--ink);
}

.btn--gold:hover {
  background: var(--gold-deep);
  color: var(--paper);
}

.btn:focus-visible,
.field-input:focus-visible,
.lockup:focus-visible {
  outline: 2px solid var(--paper);
  outline-offset: 3px;
}

/* === Masthead === */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.lockup {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius);
  color: var(--paper);
  text-decoration: none;
}

.stack-mark {
  display: block;
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.625rem;
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 0.9;
  font-feature-settings: 'liga', 'dlig';
}

.wordmark-dot {
  font-style: italic;
}

/* === Layout === */

/* One column on mobile and tablet: intro, countdown, signup, rules.
   The two column wrappers only take effect on desktop. */
.layout {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: clamp(3rem, 7vw, 4rem);
}

.column {
  display: contents;
}

.intro {
  order: 1;
  container-type: inline-size;
}

.countdown-block {
  order: 2;
}

.signup {
  order: 3;
}

.rules-panel {
  order: 4;
}

/* === Hero === */

.hero-title {
  margin: 1.25rem 0 0;
  font-family: var(--serif);
  font-size: var(--text-hero-fallback);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

@supports (font-size: 1cqi) {
  .hero-title {
    font-size: var(--text-hero);
  }
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.lede {
  max-width: var(--measure);
  margin: 1.5rem 0 0;
  font-size: clamp(0.9375rem, 0.85rem + 0.3vw, 1.0625rem);
  line-height: 1.55;
  color: var(--slate-300);
}

/* === Countdown === */

.countdown-block {
  max-width: var(--measure);
  margin-top: clamp(2rem, 4vw, 2.75rem);
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 0.75rem;
  border-block: 1px solid var(--slate-700);
}

.unit {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 0 14px clamp(10px, 3vw, 16px);
  border-left: 1px solid var(--slate-700);
}

.unit:first-child {
  padding-left: 0;
  border-left: 0;
}

.unit-value {
  font-family: var(--serif);
  font-size: var(--text-unit);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums lining-nums;
}

.unit-label {
  font-family: var(--mono);
  font-size: var(--text-eyebrow);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-300);
}

.launch-date {
  margin: 0.75rem 0 0;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate-300);
}

.when-open,
[data-state='open'] .when-counting {
  display: none;
}

[data-state='open'] .when-open {
  display: inline;
  color: var(--gold);
}

/* === Signup === */

.signup {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: var(--measure);
  margin-top: clamp(1.75rem, 3.5vw, 2.25rem);
}

.field-label {
  font-family: var(--mono);
  font-size: var(--text-eyebrow);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-300);
}

.signup-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.field-input {
  flex: 1 1 15rem;
  min-width: 0;
  height: 52px;
  padding: 14px 16px;
  border: 1px solid var(--slate-100);
  border-radius: var(--radius);
  background: var(--bone);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  transition: border-color var(--transition);
}

.field-input::placeholder {
  color: var(--slate-300);
}

.field-input:focus {
  border-color: var(--ink);
}

.signup-row .btn {
  flex: 1 0 auto;
}

.signup-note {
  margin: 6px 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--slate-300);
}

.honeypot {
  position: absolute;
  left: -5000px;
}

/* === Three rules === */

.rules-panel {
  margin-top: clamp(3rem, 7vw, 4.5rem);
  padding: clamp(1.75rem, 4vw, 2.5rem) clamp(1.5rem, 3.5vw, 2.25rem);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.rules {
  display: grid;
  gap: 1.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.rule-number {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.rule-title {
  margin: 6px 0 0;
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 400;
  letter-spacing: -0.015em;
}

.rule-body {
  margin: 4px 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--slate-700);
}

/* === Colophon === */

.colophon {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  font-family: var(--mono);
  font-size: var(--text-eyebrow);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-300);
}

/* === Breakpoints: under 768 mobile, 768 to 1199 tablet, 1200 and up desktop === */

@media (min-width: 768px) {
  .rules {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }

  .signup-row .btn {
    flex: 0 0 auto;
  }
}

@media (min-width: 1200px) {
  .layout {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(18.75rem, 25rem);
    align-items: center;
    gap: clamp(3rem, 5vw, 4.5rem);
    padding-block: clamp(2rem, 5vh, 3.5rem);
  }

  .column {
    display: flex;
    flex-direction: column;
  }

  .column--side {
    gap: 2rem;
  }

  .countdown-block,
  .rules-panel {
    max-width: none;
    margin-top: 0;
  }

  .rules {
    grid-template-columns: none;
    gap: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .field-input {
    transition: none;
  }
}