/* VertexMatrix
   Palette: orange #ff7538, black #1b1a17, and a warm white (#f7f3ec) tuned to sit between them.
   Light theme is the default. Tapping the name top-left switches to dark. */

@font-face {
  font-family: "Geist Pixel";
  src: url("fonts/GeistPixel-Regular-VariableFont_ELSH.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Libertinus Math";
  src: url("fonts/LibertinusMath-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f7f3ec;
  --fg-rgb: 27 26 23;
  --fg: rgb(var(--fg-rgb));
  --fg-soft: rgb(var(--fg-rgb) / 0.9);
  --fg-muted: rgb(var(--fg-rgb) / 0.72);
  --accent: #ff7538;
  --on-accent: #1b1a17;

  --font-brand: "Geist Pixel", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --font-text: "Libertinus Math", "Libertinus Serif", Georgia, "Times New Roman", serif;

  --corner-inline: clamp(1.15rem, 2.8vw, 3rem);
  --corner-block: clamp(1rem, 1.8vw, 1.65rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --theme-fade: 0.35s ease;

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #1b1a17;
  --fg-rgb: 247 243 236;

  color-scheme: dark;
}

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

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

body {
  color: var(--fg);
  font-family: var(--font-text);
  font-synthesis: none;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--theme-fade), color var(--theme-fade);
}

h1,
h2,
p {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

button {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

:is(a, button):focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 5px;
}

/* Layout */

.site-shell,
.site-shell main {
  width: 100%;
  height: 100%;
}

.hero {
  position: relative;
  display: grid;
  width: 100%;
  height: 100dvh;
  overflow: hidden;
  isolation: isolate;
  background: var(--bg);
  transition: background-color var(--theme-fade);
}

/* Brand (also the theme toggle) */

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  padding-top: max(var(--corner-block), calc(env(safe-area-inset-top) + 0.55rem));
  padding-right: max(var(--corner-inline), calc(env(safe-area-inset-right) + 0.75rem));
  padding-bottom: var(--corner-block);
  padding-left: max(var(--corner-inline), calc(env(safe-area-inset-left) + 0.75rem));
  pointer-events: none;
  animation: fade-in 0.9s ease-out 0.1s both;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--fg);
  font-family: var(--font-brand);
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  white-space: nowrap;
  pointer-events: auto;
  transition: color var(--theme-fade);
}

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

/* Corner navigation */

.hero-actions-nav {
  position: absolute;
  right: max(var(--corner-inline), calc(env(safe-area-inset-right) + 0.75rem));
  bottom: max(var(--corner-block), calc(env(safe-area-inset-bottom) + 0.55rem));
  z-index: 4;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  color: var(--fg-muted);
  font-size: 0.86rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fade-in 0.9s ease-out 0.25s both;
}

.hero-actions-nav :is(button, a) {
  position: relative;
  display: inline-grid;
  place-items: center;
  min-height: 2.75rem;
  color: inherit;
  text-decoration: none;
  transition: color 0.18s;
}

.hero-actions-nav :is(button, a)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.5rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 100%;
  transition: transform 0.28s var(--ease);
}

.hero-actions-nav :is(button, a):is(:hover, :focus-visible) {
  color: var(--fg);
}

.hero-actions-nav :is(button, a):is(:hover, :focus-visible)::after {
  transform: scaleX(1);
  transform-origin: 0;
}

/* Tagline */

.hero-content {
  z-index: 2;
  align-self: center;
  width: min(100%, 74rem);
  margin: 0 auto;
  padding: 2rem clamp(1.25rem, 4vw, 4rem);
  text-align: center;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s var(--ease), transform 0.38s var(--ease);
}

.hero.about-active .hero-content {
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.18s ease-out, transform 0.26s ease-out;
}

.hero h1 {
  max-width: 72rem;
  margin: 0 auto;
  color: var(--fg);
  font-size: clamp(1.7rem, 2.7vw, 2.9rem);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.01em;
  text-wrap: balance;
  transition: color var(--theme-fade);
  animation: rise 1.1s var(--ease) 0.2s both;
}

.market-sentence {
  display: block;
}

/* About */

.about-dialog {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  color: var(--fg);
  background: transparent;
  border: 0;
}

.about-dialog:focus {
  outline: none;
}

.about-dialog::backdrop {
  background: transparent;
}

.about-content {
  display: grid;
  align-content: center;
  width: min(46rem, 100% - 3rem);
  min-height: 100%;
  margin: auto;
  padding: max(5.5rem, calc(env(safe-area-inset-top) + 4rem)) 0 max(5.5rem, calc(env(safe-area-inset-bottom) + 4rem));
  opacity: 0;
  transform: translateY(-4px);
  -webkit-mask-image: linear-gradient(#000 0% 34%, transparent 49% 100%);
  mask-image: linear-gradient(#000 0% 34%, transparent 49% 100%);
  -webkit-mask-size: 100% 300%;
  mask-size: 100% 300%;
  -webkit-mask-position: 0 100%;
  mask-position: 0 100%;
}

.about-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1rem;
}

.about-kicker {
  color: var(--fg-muted);
  font-size: 0.76rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.about-close {
  min-height: 2.25rem;
  margin-right: -0.5rem;
  padding: 0.5rem;
  color: var(--fg-muted);
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transition: color 0.18s;
}

.about-close:is(:hover, :focus-visible) {
  color: var(--fg);
}

#about-copy {
  color: var(--fg-soft);
  font-size: clamp(1.12rem, 1.55vw, 1.4rem);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0;
  text-wrap: pretty;
  transition: color var(--theme-fade);
}

#about-copy p + p {
  margin-top: 1.4em;
}

.about-dialog[data-state="open"] .about-content {
  animation: about-content-in 0.92s cubic-bezier(0.16, 1, 0.3, 1) 0.22s forwards;
}

.about-dialog[data-state="open"] .about-close {
  animation: fade-in 0.42s ease-out 0.12s forwards;
}

.about-dialog[data-state="closing"] .about-content {
  -webkit-mask-image: linear-gradient(transparent 0% 34%, #000 49% 100%);
  mask-image: linear-gradient(transparent 0% 34%, #000 49% 100%);
  -webkit-mask-position: 0 100%;
  mask-position: 0 100%;
  animation: about-content-out 0.48s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.about-dialog[data-state="closing"] .about-close {
  animation: fade-out 0.24s ease-in forwards;
}

/* Motion */

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fade-out {
  to { opacity: 0; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes about-content-in {
  0% {
    opacity: 0;
    transform: translateY(-4px);
    -webkit-mask-position: 0 100%;
    mask-position: 0 100%;
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    -webkit-mask-position: 0 0;
    mask-position: 0 0;
  }
}

@keyframes about-content-out {
  0% {
    opacity: 1;
    transform: translateY(0);
    -webkit-mask-position: 0 100%;
    mask-position: 0 100%;
  }
  100% {
    opacity: 0;
    transform: translateY(4px);
    -webkit-mask-position: 0 0;
    mask-position: 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .about-dialog[data-state="open"] .about-content,
  .about-dialog[data-state="open"] .about-close {
    opacity: 1;
    transform: none;
    -webkit-mask-image: none;
    mask-image: none;
  }
}

@media (max-width: 40rem) {
  .hero-actions-nav {
    font-size: 0.8rem;
  }
}