/* ============================================================
   ByPad - token launchpad on Mantle, markets priced in
   tokenized stocks.
   Vanilla CSS. Mobile-first, Tailwind-style breakpoints:
   sm 640px / md 768px / lg 1024px, all min-width.

   Palette: black and white only, plus ONE accent (#33D17C) used
   on at most three elements so it always reads as the accent.
   ============================================================ */

:root { --accent: #33D17C; }

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

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  /* #c2ccd3 is only a pre-load fallback behind the video, never a tint. */
  background: #c2ccd3;
  color: #000;
  overflow-x: hidden;
}

html, body {
  font-family: 'Geist', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, p, figure { margin: 0; }

/* ---------- Background video ------------------------------ */
/* 100% opacity, no scrim / tint / gradient layer over it anywhere. */
.bg-video {
  position: fixed;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 1;
  pointer-events: none;
}

/* ---------- Off-screen filter defs ------------------------ */
.glass-defs {
  position: absolute;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* ---------- Hero shell ------------------------------------ */
/* The hero itself is click-through; every interactive descendant
   re-enables pointer-events individually. */
.hero {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  color: #000;
  pointer-events: none;
}

.icon { flex: none; }

/* ---------- Vertical rules (>=768px only) ----------------- */
.rule {
  position: absolute;
  top: 0;
  bottom: 0;
  display: none;
  flex-direction: column;
  align-items: center;
}
.rule--left  { left: 1.25rem; }
.rule--right { right: 1.25rem; }
.rule__seg { width: 1px; background: rgba(0, 0, 0, 0.2); }
.rule__seg--end { height: 15%; }
.rule__seg--mid { flex: 1 1 0%; }
.rule__plus {
  font-size: 0.75rem;
  line-height: 1;
  color: rgba(0, 0, 0, 0.4);
  padding: 0.25rem 0;
}
@media (min-width: 768px) {
  .rule { display: flex; }
}

/* ---------- Navbar ---------------------------------------- */
.nav {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
}
.nav__item {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: #000;
  background: none;
  border: 0;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
  pointer-events: auto;
  transition: opacity 300ms;
}
.nav__item:hover { opacity: 0.6; }
.nav__label {
  font-size: 0.875rem;
  line-height: 1.25rem;
  letter-spacing: 0.025em;
}
.nav__label--menu { display: none; }
/* Wordmark, centre of the bar. Black on purpose: the accent is
   spent on the dot beside it, not on the name. */
.nav__brand {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #000;
}

/* Accent 1 of 3. */
.nav__dot {
  width: 8px;
  height: 8px;
  border-radius: 9999px;
  background: var(--accent);
}
@media (min-width: 640px) {
  .nav { padding: 1.25rem 1.5rem; }
  .nav__label--menu { display: inline; }
}
@media (min-width: 768px) {
  .nav { padding: 1.5rem 3rem; }
}

/* ---------- Bottom row ------------------------------------ */
/* No scrim, no ::before overlay here. Text is dark at every width. */
.hero-bottom {
  position: relative;
  z-index: 2;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 0 1.25rem 1.5rem;
}
@media (min-width: 640px) {
  .hero-bottom { padding: 0 1.5rem 2rem; }
}
@media (min-width: 768px) {
  .hero-bottom {
    flex: 1;
    margin-top: 0;
    flex-direction: row;
    align-items: stretch;
    justify-content: space-between;
    gap: 3rem;
    padding: 2rem 3rem 3rem;
  }
  .lede { align-self: flex-start; }
  .card { align-self: flex-end; }
}

/* ---------- Left column copy ------------------------------ */
.lede { max-width: 24rem; }
.lede__title {
  font-size: 1.25rem;
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: #000;
}
.lede__body {
  margin-top: 0.75rem;
  max-width: 280px;
  font-size: 0.75rem;
  line-height: 1.625;
  color: rgba(0, 0, 0, 0.6);
}
@media (min-width: 640px) {
  .lede__title { font-size: 1.5rem; }
  .lede__body { font-size: 0.875rem; }
}
@media (min-width: 768px) {
  .lede__title { font-size: 1.875rem; }
  .lede__body { margin-top: 1rem; }
}
@media (min-width: 1024px) {
  .lede__title { font-size: 2.25rem; }
}

/* ---------- Chamfered CTA --------------------------------- */
/* Rectangle with the top-left and bottom-right corners cut at 14px.
   Note the deliberate inversion: the frosted fill exists ONLY below
   640px, where the button sits over busier video; from sm up it is a
   bare outline. */
.chamfer {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 220px;
  height: 44px;
  margin-top: 1.5rem;
  padding: 0 1.25rem;
  color: #000;
  text-decoration: none;
  pointer-events: auto;
  transition: opacity 300ms;
}
.chamfer:hover { opacity: 0.7; }
.chamfer__glass {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.2);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
}
.chamfer__outline {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.chamfer__label {
  position: relative;
  font-size: 0.75rem;
  letter-spacing: 0.025em;
}
.chamfer .icon { position: relative; }
@media (min-width: 640px) {
  .chamfer { width: 260px; height: 48px; padding: 0 1.5rem; }
  .chamfer__label { font-size: 0.875rem; }
  .chamfer__glass {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-color: transparent;
  }
}
@media (min-width: 768px) {
  .chamfer { margin-top: 2rem; }
}

/* ---------- Non-affiliation fine print -------------------- */
/* Fine print, but never hidden: it stays in the flow of the hero
   at every width, on the same untinted video as the rest. */
.legal {
  margin-top: 0.75rem;
  font-size: 0.625rem;
  line-height: 1.5;
  color: rgba(0, 0, 0, 0.45);
}
@media (min-width: 768px) {
  .legal { margin-top: 1.5rem; max-width: 24rem; }
}

/* ---------- Liquid-glass card ----------------------------- */
/* Three stacking layers: refracted duplicate (0), frost sheen (1),
   text + wave (2). The card's overflow:hidden + border-radius do all
   the clipping of the oversized duplicate. */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 340px;
  max-width: 100%;
  height: 460px;
  padding: 2rem;
  border-radius: 48px;
  overflow: hidden;
  background: transparent;
  border: 1px solid rgba(47, 47, 47, 0.15);
  pointer-events: auto;
  animation: fade-slide-up-card 900ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes fade-slide-up-card {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

#dup-video-container {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
#dup-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: url(#liquid-glass-refraction);
}

.card__frost {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: 48px;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 1.5px 2px rgba(255, 255, 255, 0.3),
              inset 0 -1px 2px rgba(0, 0, 0, 0.15);
  transition: background 400ms;
}
.card.group:hover .card__frost { background: rgba(255, 255, 255, 0.1); }

.card__head, .card__body, .card__wave { position: relative; z-index: 2; }

.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
.card__title {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.025em;
}
/* Accent 2 of 3 - the chain the launchpad runs on. */
.card__index {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--accent);
  white-space: nowrap;
}
.card__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}
.finding__title {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}
.finding__text {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  line-height: 1.625;
  color: rgba(0, 0, 0, 0.5);
}
/* flex: none - the card is a column flexbox, and without it the SVG
   is a shrinkable flex item that collapses to 0 height as soon as the
   copy is at all tight. */
.card__wave {
  display: block;
  flex: none;
  width: 100%;
  height: auto;
  margin-top: 1.25rem;
}
@media (min-width: 640px) {
  .card__title { font-size: 1.125rem; }
}
@media (min-width: 768px) {
  .card__head { padding-bottom: 1rem; }
  .card__title { font-size: 1.25rem; }
  .card__body { gap: 1rem; margin-top: 1.25rem; }
  .finding__title { font-size: 1rem; }
  .finding__text { font-size: 0.875rem; margin-top: 0.375rem; }
  .card__wave { margin-top: 1.5rem; }
}

/* ---------- Slide-in menu --------------------------------- */
/* The visibility transition is delayed 500ms on close so the panel
   finishes sliding out before the whole layer goes inert. */
.menu {
  position: fixed;
  inset: 0;
  z-index: 50;
  visibility: hidden;
  pointer-events: none;
  transition: visibility 0s linear 500ms;
}
.menu.is-open {
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}
.menu__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 500ms;
}
.menu.is-open .menu__backdrop { opacity: 1; }
.menu__panel {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  padding: 1.5rem 2rem;
  background: #f5f4f0;
  transform: translateX(-100%);
  transition: transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}
.menu.is-open .menu__panel { transform: translateX(0); }
@media (min-width: 640px) {
  .menu__panel { width: 380px; padding: 1.5rem 2.5rem; }
}
.menu__close {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  align-self: flex-start;
  margin-bottom: 3rem;
  background: none;
  border: 0;
  font: inherit;
  font-size: 0.875rem;
  color: #000;
  cursor: pointer;
  transition: opacity 300ms;
}
.menu__close:hover { opacity: 0.6; }
.menu__nav { display: flex; flex-direction: column; }
.menu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  color: #000;
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms, transform 500ms;
}
.menu__linkText {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: -0.025em;
  transition: transform 300ms;
}
.menu__link:hover .menu__linkText { transform: translateX(8px); }
.menu__arrow {
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 300ms, transform 300ms;
}
.menu__link:hover .menu__arrow { opacity: 1; transform: translateX(0); }
@media (min-width: 640px) {
  .menu__linkText { font-size: 1.875rem; }
}
.menu.is-open .menu__link { opacity: 1; transform: translateY(0); }
.menu.is-open .menu__link:nth-child(1) { transition-delay: 150ms; }
.menu.is-open .menu__link:nth-child(2) { transition-delay: 225ms; }
.menu.is-open .menu__link:nth-child(3) { transition-delay: 300ms; }
.menu.is-open .menu__link:nth-child(4) { transition-delay: 375ms; }
.menu.is-open .menu__link:nth-child(5) { transition-delay: 450ms; }
.menu__foot {
  margin-top: auto;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms, transform 500ms;
}
.menu.is-open .menu__foot { opacity: 1; transform: translateY(0); transition-delay: 600ms; }
.menu__footLabel {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  color: rgba(0, 0, 0, 0.4);
}
.menu__mail {
  font-size: 0.875rem;
  color: rgba(0, 0, 0, 0.7);
  text-decoration: none;
  transition: color 300ms;
}
.menu__mail:hover { color: #000; }

/* ---------- Reduced motion -------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; }
}