/* ==========================================================================
   Kyra Labs — kyralabs.dev
   Design language: full-bleed alternating tiles, single accent, quiet type.
   Adapted from an Apple-style tile system, re-tokened to the Kyra brand red.
   ========================================================================== */

:root {
  /* Brand accent (sampled from the Kyra Labs mark) */
  --color-primary: #d84848;
  --color-primary-active: #b73d3d;
  --color-primary-focus: #e2605a;
  --color-primary-on-dark: #ff8a7a;

  /* Surfaces */
  --color-canvas: #ffffff;
  --color-parchment: #f6f5f3;
  --color-pearl: #fbfaf9;
  --color-tile-1: #1e1d1f;
  --color-tile-2: #232224;
  --color-tile-3: #1a191b;
  --color-black: #000000;
  --color-chip-translucent: rgba(214, 212, 210, 0.64);

  /* Text */
  --color-ink: #1d1d1f;
  --color-body: #1d1d1f;
  --color-body-on-dark: #ffffff;
  --color-body-muted: #cfcfcf;
  --color-ink-muted-80: #333333;
  --color-ink-muted-48: #7a7a7a;

  /* Hairlines */
  --color-divider-soft: rgba(0, 0, 0, 0.06);
  --color-hairline: #e3e1df;

  /* Spacing */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 17px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-section: 80px;
  --space-section-tight: 48px;

  /* Radius */
  --radius-none: 0px;
  --radius-xs: 5px;
  --radius-sm: 8px;
  --radius-md: 11px;
  --radius-lg: 18px;
  --radius-pill: 9999px;

  /* Shadow (reserved for product/app imagery only) */
  --shadow-product: 3px 5px 30px rgba(0, 0, 0, 0.22);

  /* Type */
  --font-display: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --max-content: 1440px;
  --max-text: 980px;
}

/* ---------------------------------- reset ------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-feature-settings: "ss03";
  color: var(--color-body);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

:focus-visible {
  outline: 2px solid var(--color-primary-focus);
  outline-offset: 2px;
}

.container {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 24px;
}
.container--text {
  max-width: var(--max-text);
  margin: 0 auto;
  padding: 0 24px;
}

/* ------------------------------ typography -------------------------------*/
.eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.224px;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
  display: inline-block;
}
.eyebrow--on-dark { color: var(--color-primary-on-dark); }

.hero-display {
  font-size: 56px;
  font-weight: 600;
  line-height: 1.07;
  letter-spacing: -0.28px;
  margin: 0 0 var(--space-lg);
}
.display-lg {
  font-size: 40px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-md);
}
.display-md {
  font-size: 34px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-md);
}
.lead {
  font-size: 28px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-ink-muted-80);
  max-width: 640px;
  margin: 0 auto var(--space-xl);
}
.lead--on-dark { color: var(--color-body-muted); }
.tagline {
  font-size: 21px;
  font-weight: 600;
  line-height: 1.19;
}
p.body, .body-copy {
  font-size: 17px;
  line-height: 1.44;
  color: var(--color-ink-muted-80);
}
.body-copy--on-dark { color: var(--color-body-muted); }
.caption { font-size: 14px; line-height: 1.43; }
.fine-print { font-size: 12px; line-height: 1.4; color: var(--color-ink-muted-48); }

/* --------------------------------- nav -----------------------------------*/
.global-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  background: var(--color-black);
  display: flex;
  align-items: center;
}
.global-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.brand-mark {
  display: flex;
  align-items: center;
  height: 24px;
}
.brand-mark img { height: 100%; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 13px;
  color: var(--color-body-on-dark);
  opacity: 0.82;
  transition: opacity 0.15s ease;
}
.nav-links a:hover { opacity: 1; }
.nav-cta { margin-left: 8px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-body-on-dark);
  padding: 8px;
}
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 833px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .global-nav.is-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-black);
    padding: var(--space-lg) 24px calc(var(--space-lg) + 8px);
    gap: var(--space-lg);
  }
  .global-nav.is-open .nav-cta { margin-left: 0; }
}

/* -------------------------------- buttons --------------------------------*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  padding: 11px 22px;
  font-size: 17px;
  font-weight: 400;
  border: none;
  transition: transform 0.12s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.95); }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-active); }
.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn--ghost--on-dark {
  background: transparent;
  color: var(--color-primary-on-dark);
  border: 1px solid var(--color-primary-on-dark);
}
.btn--dark-utility {
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 8px 15px;
  font-size: 14px;
}
.btn--lg { padding: 14px 28px; font-size: 18px; font-weight: 300; }
.btn-row { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }

/* --------------------------------- tiles ---------------------------------*/
.tile {
  padding: var(--space-section) 0;
}
.tile--tight { padding: var(--space-section-tight) 0; }
.tile--light { background: var(--color-canvas); color: var(--color-ink); }
.tile--parchment { background: var(--color-parchment); color: var(--color-ink); }
.tile--dark { background: var(--color-tile-1); color: var(--color-body-on-dark); }
.tile--dark-2 { background: var(--color-tile-2); color: var(--color-body-on-dark); }

.tile-stack {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .tile { padding: var(--space-section-tight) 0; }
  .hero-display { font-size: 34px; letter-spacing: -0.02em; }
  .display-lg { font-size: 28px; }
  .lead { font-size: 20px; }
}
@media (max-width: 419px) {
  .hero-display { font-size: 28px; }
}

/* ------------------------------- hero motif ------------------------------*/
.hero-motif {
  position: relative;
  width: 100%;
  max-width: 420px;
  height: 220px;
  margin: 0 auto var(--space-xl);
}
.hero-motif svg { width: 100%; height: 100%; }
.motif-dot { fill: var(--color-primary); }

/* ------------------------------ value cards ------------------------------*/
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: var(--space-xxl);
}
@media (max-width: 833px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .card-grid { grid-template-columns: 1fr; } }

.value-card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: left;
}
.value-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-parchment);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}
.value-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.value-card p { font-size: 15px; line-height: 1.5; color: var(--color-ink-muted-80); margin: 0; }

/* --------------------------------- about ---------------------------------*/
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xxl);
  align-items: center;
  text-align: left;
}
@media (max-width: 833px) {
  .about-grid { grid-template-columns: 1fr; text-align: center; }
}
.fact-list { margin-top: var(--space-lg); display: flex; flex-direction: column; gap: 14px; }
.fact-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; color: var(--color-body-muted); }
.fact-list .dot {
  flex: none;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-primary-on-dark);
  margin-top: 8px;
}

/* ----------------------------- app showcase ------------------------------*/
.app-showcase {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-xxl);
  align-items: center;
  text-align: left;
  margin-top: var(--space-xxl);
}
@media (max-width: 833px) {
  .app-showcase { grid-template-columns: 1fr; text-align: center; }
}

.phone-frame {
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  aspect-ratio: 9 / 18.5;
  background: #101012;
  border-radius: 34px;
  border: 6px solid #101012;
  box-shadow: var(--shadow-product);
  overflow: hidden;
  position: relative;
}
.phone-frame__notch {
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 40%; height: 20px;
  background: #101012;
  border-radius: 0 0 14px 14px;
  z-index: 2;
}
.phone-frame__screen {
  background: var(--color-parchment);
  height: 100%;
  width: 100%;
  padding: 30px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--color-ink);
}
.mock-balance { font-family: var(--font-mono); font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.mock-balance-label { font-size: 11px; color: var(--color-ink-muted-48); text-transform: uppercase; letter-spacing: 0.06em; }
.mock-row {
  display: flex; align-items: center; justify-content: space-between;
  background: #fff; border-radius: var(--radius-sm); padding: 8px 10px;
  border: 1px solid var(--color-hairline);
}
.mock-row__label { font-size: 12px; font-weight: 600; }
.mock-row__sub { font-size: 10px; color: var(--color-ink-muted-48); }
.mock-row__amt { font-family: var(--font-mono); font-size: 12px; font-weight: 600; }
.mock-chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 10px; padding: 3px 8px; border-radius: var(--radius-pill);
  background: rgba(216,72,72,0.12); color: var(--color-primary-active); font-weight: 600;
}

.app-details h3 { font-size: 26px; font-weight: 600; margin-bottom: var(--space-sm); letter-spacing: -0.01em; }
.app-details .body-copy { margin-bottom: var(--space-lg); }
.feature-checks { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--space-xl); }
.feature-checks li { display: flex; gap: 10px; align-items: center; font-size: 15px; }
.feature-checks .check {
  flex: none; width: 20px; height: 20px; border-radius: 50%;
  background: rgba(216,72,72,0.14); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 12px;
}

/* ----------------------------- developer card -----------------------------*/
.developer-card {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 640px;
  margin: var(--space-xxl) auto 0;
  text-align: left;
}
@media (max-width: 640px) {
  .developer-card { flex-direction: column; text-align: center; }
}
.avatar {
  flex: none;
  width: 84px; height: 84px; border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 600;
}
.developer-card h3 { font-size: 22px; font-weight: 600; margin-bottom: 6px; }
.developer-card p { font-size: 15px; color: var(--color-ink-muted-80); margin-bottom: var(--space-md); }
.developer-links { display: flex; gap: var(--space-md); flex-wrap: wrap; }
@media (max-width: 640px) { .developer-links { justify-content: center; } }

/* -------------------------------- contact --------------------------------*/
.waitlist-form {
  display: flex;
  gap: 10px;
  max-width: 460px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}
.waitlist-input {
  flex: 1 1 240px;
  height: 44px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  color: #fff;
  padding: 0 20px;
  font-size: 15px;
}
.waitlist-input::placeholder { color: rgba(255,255,255,0.45); }
.tile--light .waitlist-input, .tile--parchment .waitlist-input {
  border: 1px solid rgba(0,0,0,0.08);
  background: #fff;
  color: var(--color-ink);
}
.tile--light .waitlist-input::placeholder, .tile--parchment .waitlist-input::placeholder { color: #9a9a9a; }
.waitlist-note { margin-top: var(--space-sm); font-size: 13px; color: var(--color-ink-muted-48); }
.tile--dark .waitlist-note, .tile--dark-2 .waitlist-note { color: rgba(255,255,255,0.5); }
.form-status { margin-top: var(--space-sm); font-size: 14px; min-height: 20px; }

/* --------------------------------- footer ---------------------------------*/
.site-footer { background: var(--color-parchment); color: var(--color-ink-muted-80); }
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-xxl);
  padding: 64px 0 var(--space-xxl);
  text-align: left;
}
@media (max-width: 640px) { .footer-top { grid-template-columns: 1fr; gap: var(--space-xl); } }
.footer-brand img { height: 22px; margin-bottom: var(--space-md); }
.footer-brand p { font-size: 14px; color: var(--color-ink-muted-48); max-width: 320px; }
.footer-col h4 {
  font-size: 14px; font-weight: 600; margin-bottom: var(--space-md);
  color: var(--color-ink-muted-48); text-transform: uppercase; letter-spacing: 0.06em;
}
.footer-col a {
  display: block;
  font-size: 17px;
  line-height: 2.41;
  color: var(--color-ink-muted-80);
}
.footer-col a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid var(--color-hairline);
  padding: var(--space-lg) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--color-ink-muted-48);
}
.footer-bottom a { color: var(--color-ink-muted-48); }
.footer-bottom a:hover { color: var(--color-primary); }

/* --------------------------------- misc ----------------------------------*/
.section-divider-label {
  text-align: center;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 100;
}
.skip-link:focus { left: 16px; top: 16px; }

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

.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;
}
.text-link { text-decoration: underline; text-underline-offset: 2px; }