:root {
  --ink: #0a0a0d;
  --ink-soft: #121217;
  --panel: #17171d;
  --panel-light: #202028;
  --paper: #f4f1e8;
  --white: #f7f6f1;
  --muted: #a6a6ad;
  --line: rgba(255, 255, 255, 0.12);
  --green: #c9ff45;
  --green-soft: #e0ff92;
  --purple: #9273ff;
  --purple-soft: #c3b4ff;
  --blue: #6ccaff;
  --danger: #ff7468;
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 38px;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--white);
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
}

::selection {
  background: var(--green);
  color: var(--ink);
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--green);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.announcement {
  position: relative;
  z-index: 40;
  display: flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 8px 20px;
  background: var(--green);
  color: var(--ink);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.01em;
  text-align: center;
}

.announcement a {
  margin-left: 4px;
  border-bottom: 1px solid currentColor;
}

.announcement__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(10, 10, 13, 0.12);
  animation: blink 1.8s ease-in-out infinite;
}

.site-header {
  position: absolute;
  z-index: 35;
  top: 38px;
  left: 50%;
  display: grid;
  width: min(1200px, calc(100% - 48px));
  height: 78px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
}

.brand__mark {
  display: inline-flex;
  height: 38px;
  align-items: center;
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 27px;
  font-weight: 950;
  letter-spacing: -0.12em;
  line-height: 1;
}

.brand__mirror {
  display: inline-block;
  margin: 0 1px 0 3px;
  transform: scaleX(-1);
}

.brand__name {
  max-width: 70px;
  color: #d6d6db;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.06;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #b7b7bd;
  font-size: 13px;
  font-weight: 650;
}

.desktop-nav a {
  position: relative;
  transition: color 160ms ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--green);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.desktop-nav a:hover {
  color: var(--white);
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.header-cta {
  justify-self: end;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 820;
  letter-spacing: -0.01em;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button:focus-visible,
.text-button:focus-visible,
.add-stack:focus-visible,
.subject-tab:focus-visible,
.menu-button:focus-visible {
  outline: 3px solid rgba(201, 255, 69, 0.45);
  outline-offset: 3px;
}

.button--small {
  min-height: 41px;
  padding: 0 19px;
  font-size: 12px;
}

.button--ghost {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(10px);
}

.button--ghost:hover {
  border-color: rgba(201, 255, 69, 0.48);
  background: rgba(201, 255, 69, 0.08);
}

.button--primary {
  padding: 0 26px;
  background: var(--green);
  box-shadow: 0 12px 40px rgba(201, 255, 69, 0.15);
  color: var(--ink);
}

.button--primary:hover {
  box-shadow: 0 18px 55px rgba(201, 255, 69, 0.25);
}

.button--primary span {
  font-size: 18px;
}

.menu-button,
.mobile-nav {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  min-height: 870px;
  grid-template-columns: minmax(0, 1.04fr) minmax(390px, 0.96fr);
  align-items: center;
  gap: 72px;
  overflow: hidden;
  padding: 160px max(24px, calc((100vw - 1200px) / 2)) 86px;
  isolation: isolate;
}

.hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  mask-image: linear-gradient(to bottom, black 0%, black 62%, transparent 100%);
}

.hero::after {
  position: absolute;
  z-index: -1;
  right: -15%;
  bottom: -35%;
  left: -15%;
  height: 58%;
  border-radius: 50%;
  background: radial-gradient(
    ellipse at center,
    rgba(146, 115, 255, 0.12),
    transparent 68%
  );
  content: "";
}

.hero__glow {
  position: absolute;
  z-index: -1;
  width: 540px;
  height: 540px;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.12;
  pointer-events: none;
}

.hero__glow--green {
  top: -270px;
  left: 8%;
  background: var(--green);
}

.hero__glow--purple {
  right: -240px;
  bottom: -150px;
  background: var(--purple);
}

.hero__copy {
  position: relative;
  z-index: 2;
  padding-bottom: 22px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 23px;
  color: #aaaab1;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(201, 255, 69, 0.2);
  border-radius: 999px;
  padding: 7px 10px;
  background: rgba(201, 255, 69, 0.06);
  color: var(--green);
}

.eyebrow span::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.hero h1 {
  max-width: 700px;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(72px, 7.25vw, 118px);
  font-weight: 950;
  letter-spacing: -0.085em;
  line-height: 0.82;
}

.hero h1 span {
  color: var(--green);
}

.hero__lead {
  max-width: 590px;
  margin: 34px 0 0;
  color: #bebec4;
  font-size: clamp(17px, 1.35vw, 20px);
  letter-spacing: -0.018em;
  line-height: 1.58;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 34px;
}

.text-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 0;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font-size: 13px;
  font-weight: 740;
}

.play-icon {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  padding-left: 2px;
  color: var(--green);
  font-size: 9px;
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}

.text-button:hover .play-icon {
  border-color: var(--green);
  transform: scale(1.06);
}

.hero__proof {
  display: flex;
  align-items: center;
  margin-top: 38px;
}

.proof-avatar {
  display: inline-flex;
  width: 31px;
  height: 31px;
  align-items: center;
  justify-content: center;
  margin-left: -7px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  color: var(--ink);
  font-family: Georgia, serif;
  font-size: 11px;
  font-weight: 800;
}

.proof-avatar:first-child {
  margin-left: 0;
}

.proof-avatar--one {
  background: var(--green);
}

.proof-avatar--two {
  background: var(--purple);
}

.proof-avatar--three {
  background: var(--blue);
}

.hero__proof p {
  margin: 0 0 0 12px;
  color: #8f8f96;
  font-size: 11px;
}

.hero__proof strong {
  color: #d9d9dc;
}

.hero__product {
  position: relative;
  display: flex;
  min-height: 640px;
  align-items: center;
  justify-content: center;
  perspective: 1300px;
}

.phone {
  position: relative;
  z-index: 2;
  width: min(390px, 100%);
  min-height: 675px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 48px;
  padding: 14px 19px 22px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 28%),
    #15151a;
  box-shadow:
    0 65px 150px rgba(0, 0, 0, 0.65),
    0 0 0 8px #08080b,
    0 0 0 9px rgba(255, 255, 255, 0.12);
  transform: rotateY(-7deg) rotateX(2deg) rotateZ(1.2deg);
  transition: transform 350ms ease;
}

.hero__product:hover .phone {
  transform: rotateY(-2deg) rotateX(0) rotateZ(0);
}

.phone::after {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  content: "";
  pointer-events: none;
}

.phone__top {
  position: relative;
  display: flex;
  height: 34px;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  color: #d2d2d6;
  font-size: 9px;
  font-weight: 750;
}

.phone__camera {
  position: absolute;
  top: 1px;
  left: 50%;
  width: 104px;
  height: 25px;
  border-radius: 999px;
  background: #050506;
  transform: translateX(-50%);
}

.phone__status {
  font-size: 7px;
  letter-spacing: 2px;
}

.app-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}

.app-head > div:first-child {
  display: flex;
  flex-direction: column;
}

.app-kicker {
  color: #85858d;
  font-size: 8px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.app-head strong {
  margin-top: 2px;
  font-size: 20px;
  letter-spacing: -0.045em;
}

.streak-pill {
  display: flex;
  height: 34px;
  align-items: center;
  gap: 5px;
  border: 1px solid rgba(201, 255, 69, 0.2);
  border-radius: 999px;
  padding: 0 12px;
  background: rgba(201, 255, 69, 0.07);
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
}

.progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 17px;
}

.progress__bar {
  height: 5px;
  flex: 1;
  overflow: hidden;
  border-radius: 999px;
  background: #2a2a31;
}

.progress__bar span {
  display: block;
  width: 70%;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
  box-shadow: 0 0 14px rgba(201, 255, 69, 0.35);
  transition: width 450ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.progress > span {
  min-width: 32px;
  color: #aaaab1;
  font-size: 9px;
  font-weight: 750;
}

.problem-card {
  position: relative;
  min-height: 480px;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 25px;
  padding: 18px;
  background: #202027;
}

.problem-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #9d9da5;
  font-size: 8px;
  font-weight: 700;
}

.problem-card__meta span:last-child {
  border-radius: 999px;
  padding: 4px 8px;
  background: rgba(146, 115, 255, 0.14);
  color: var(--purple-soft);
}

.problem-card__prompt {
  margin: 24px 0 0;
  color: #c4c4c8;
  font-size: 10px;
}

.equation {
  margin-top: 3px;
  color: var(--white);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 30px;
  letter-spacing: -0.025em;
}

.paper-demo {
  position: relative;
  height: 220px;
  margin-top: 18px;
  overflow: hidden;
  border-radius: 15px;
  background:
    linear-gradient(rgba(19, 57, 115, 0.11) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 24px;
  box-shadow: inset 0 0 35px rgba(57, 45, 27, 0.08);
}

.paper-demo::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 1px;
  background: rgba(225, 91, 84, 0.22);
  content: "";
}

.paper-demo__label {
  position: absolute;
  top: 9px;
  right: 11px;
  color: rgba(25, 25, 30, 0.42);
  font-size: 7px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.handwriting {
  position: absolute;
  left: 51px;
  color: #1c2341;
  font-family: "Comic Sans MS", "Bradley Hand", cursive;
  font-size: 19px;
  font-weight: 650;
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 260ms ease,
    transform 260ms ease;
}

.handwriting--one {
  top: 64px;
  transform: rotate(-1.5deg) translateY(6px);
}

.handwriting--two {
  top: 110px;
  font-size: 21px;
  transform: rotate(1deg) translateY(6px);
}

.answer-circle {
  position: absolute;
  top: 95px;
  left: 42px;
  width: 200px;
  height: 56px;
  border: 2px solid rgba(39, 46, 91, 0.78);
  border-radius: 50%;
  opacity: 0;
  transform: rotate(-3deg) scale(0.92);
  transition:
    opacity 250ms ease 150ms,
    transform 250ms ease 150ms;
}

.scan-line {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 15px var(--green);
  opacity: 0;
}

.scan-corners {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(201, 255, 69, 0.8);
  border-radius: 9px;
  opacity: 0;
}

.paper-demo.stage-write .handwriting,
.paper-demo.stage-scan .handwriting,
.paper-demo.stage-correct .handwriting,
.paper-demo.stage-write .answer-circle,
.paper-demo.stage-scan .answer-circle,
.paper-demo.stage-correct .answer-circle {
  opacity: 1;
  transform: translateY(0);
}

.paper-demo.stage-write .handwriting--one,
.paper-demo.stage-scan .handwriting--one,
.paper-demo.stage-correct .handwriting--one {
  transform: rotate(-1.5deg) translateY(0);
}

.paper-demo.stage-write .handwriting--two,
.paper-demo.stage-scan .handwriting--two,
.paper-demo.stage-correct .handwriting--two {
  transform: rotate(1deg) translateY(0);
}

.paper-demo.stage-write .answer-circle,
.paper-demo.stage-scan .answer-circle,
.paper-demo.stage-correct .answer-circle {
  transform: rotate(-3deg) scale(1);
}

.paper-demo.stage-scan .scan-line {
  opacity: 1;
  animation: scan 1.2s ease-in-out infinite alternate;
}

.paper-demo.stage-scan .scan-corners {
  opacity: 1;
}

.check-result {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  z-index: 5;
  display: flex;
  min-height: 76px;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(201, 255, 69, 0.28);
  border-radius: 16px;
  padding: 11px 14px;
  background: rgba(14, 20, 11, 0.95);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateY(15px);
  transition:
    opacity 260ms ease,
    transform 260ms ease;
}

.check-result.show {
  opacity: 1;
  transform: translateY(0);
}

.check-result__icon {
  display: flex;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

.check-result strong {
  color: var(--green);
  font-size: 12px;
}

.check-result p {
  margin: 1px 0 0;
  color: #aaaeb0;
  font-size: 8px;
}

.camera-button {
  display: flex;
  height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  border-radius: 12px;
  background: var(--green);
  color: var(--ink);
  font-size: 9px;
  font-weight: 850;
}

.camera-icon {
  position: relative;
  width: 14px;
  height: 11px;
  border: 2px solid currentColor;
  border-radius: 3px;
}

.camera-icon::before {
  position: absolute;
  top: 1px;
  left: 3px;
  width: 4px;
  height: 4px;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "";
}

.camera-icon::after {
  position: absolute;
  top: -5px;
  left: 2px;
  width: 6px;
  height: 3px;
  border-radius: 2px 2px 0 0;
  background: currentColor;
  content: "";
}

.phone__footer {
  margin: 12px 0 0;
  color: #7f7f86;
  font-size: 8px;
  text-align: center;
  transition: color 180ms ease;
}

.orbit {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.13);
  background: rgba(22, 22, 28, 0.8);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
  color: var(--white);
  font-family: Georgia, serif;
  font-weight: 800;
  backdrop-filter: blur(12px);
}

.orbit--one {
  top: 40px;
  right: 8px;
  width: 66px;
  height: 66px;
  border-radius: 21px;
  color: var(--green);
  font-size: 22px;
  animation: float 5s ease-in-out infinite;
}

.orbit--two {
  bottom: 84px;
  left: -6px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  color: var(--purple);
  font-size: 22px;
  animation: float 6.2s ease-in-out infinite reverse;
}

.orbit--three {
  right: -24px;
  bottom: 178px;
  width: 76px;
  height: 35px;
  border-radius: 999px;
  color: var(--green);
  font-family: inherit;
  font-size: 11px;
  animation: float 7s ease-in-out infinite 1s;
}

.scroll-note {
  position: absolute;
  bottom: 30px;
  left: max(24px, calc((100vw - 1200px) / 2));
  display: flex;
  align-items: center;
  gap: 11px;
  color: #66666d;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-note span {
  position: relative;
  display: block;
  width: 22px;
  height: 34px;
  border: 1px solid #45454c;
  border-radius: 999px;
}

.scroll-note span::after {
  position: absolute;
  top: 7px;
  left: 9px;
  width: 2px;
  height: 7px;
  border-radius: 2px;
  background: var(--green);
  content: "";
  animation: scroll 1.8s ease-in-out infinite;
}

.memory-strip {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #0e0e12;
}

.memory-strip__track {
  display: grid;
  width: min(1200px, calc(100% - 48px));
  min-height: 114px;
  grid-template-columns: 1fr 1fr;
  margin: 0 auto;
}

.memory-loop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  padding: 25px;
  color: #86868d;
}

.memory-loop + .memory-loop {
  border-left: 1px solid var(--line);
}

.memory-loop > span {
  margin-right: 10px;
  color: #63636a;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.memory-loop strong {
  color: #b6b6bc;
  font-size: 15px;
}

.memory-loop i {
  color: #4a4a52;
  font-style: normal;
}

.memory-loop .faded {
  color: #55555b;
  text-decoration: line-through;
}

.memory-loop--new {
  background: linear-gradient(
    90deg,
    rgba(201, 255, 69, 0.02),
    rgba(201, 255, 69, 0.065)
  );
}

.memory-loop--new .kept {
  color: var(--green);
}

.section-shell {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--green);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.section-label::before {
  width: 22px;
  height: 1px;
  background: currentColor;
  content: "";
}

.section-label--purple {
  color: var(--purple-soft);
}

.problem-section {
  padding-top: 126px;
  padding-bottom: 124px;
}

.problem-section__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: 80px;
  margin-top: 27px;
}

.problem-section h2,
.section-heading h2,
.stack-section h2,
.paper-section h2,
.groups h2,
.waitlist h2 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(44px, 5.2vw, 74px);
  font-weight: 920;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.problem-section__copy {
  padding-top: 7px;
  color: #aaaab1;
  font-size: 15px;
  line-height: 1.7;
}

.problem-section__copy p {
  margin: 0 0 18px;
}

.decay-card {
  margin-top: 76px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #111116;
  box-shadow: var(--shadow);
}

.decay-card__head {
  display: flex;
  min-height: 70px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: 0 25px;
  color: #d7d7da;
  font-size: 12px;
  font-weight: 720;
}

.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 7px 10px;
  color: #8b8b92;
  font-size: 8px;
  font-weight: 700;
}

.live-pill i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 9px var(--green);
}

.decay-chart {
  position: relative;
  height: 360px;
  padding: 34px 42px 40px 74px;
}

.chart-grid {
  position: absolute;
  top: 34px;
  right: 42px;
  bottom: 52px;
  left: 74px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 100% 25%, 20% 100%;
}

.chart-lines {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 270px;
  overflow: visible;
}

.chart-line {
  fill: none;
  stroke-linecap: round;
  stroke-width: 3;
}

.chart-line--faded {
  stroke: #42424a;
  stroke-dasharray: 5 8;
}

.chart-line--active {
  stroke: var(--green);
  filter: drop-shadow(0 0 6px rgba(201, 255, 69, 0.38));
}

.chart-lines circle {
  fill: var(--ink);
  stroke: var(--green);
  stroke-width: 3;
}

.chart-label {
  position: absolute;
  left: 27px;
  color: #5d5d65;
  font-size: 8px;
  font-weight: 750;
}

.chart-label--top {
  top: 29px;
}

.chart-label--bottom {
  bottom: 53px;
}

.chart-axis {
  position: absolute;
  right: 42px;
  bottom: 26px;
  left: 74px;
  display: flex;
  justify-content: space-between;
  color: #5d5d65;
  font-size: 8px;
}

.review-tag {
  position: absolute;
  z-index: 3;
  border: 1px solid rgba(201, 255, 69, 0.22);
  border-radius: 999px;
  padding: 5px 8px;
  background: #151a11;
  color: var(--green);
  font-size: 7px;
  font-weight: 750;
}

.review-tag--one {
  top: 51px;
  left: 24%;
}

.review-tag--two {
  top: 59px;
  left: 44%;
}

.review-tag--three {
  top: 70px;
  left: 67%;
}

.how {
  padding-top: 20px;
  padding-bottom: 130px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.section-heading h2 {
  margin-top: 24px;
}

.section-heading > p {
  max-width: 350px;
  margin: 0 0 4px;
  color: #9d9da5;
  font-size: 14px;
  line-height: 1.7;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 62px;
}

.step-card {
  position: relative;
  min-height: 460px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 29px;
  background:
    radial-gradient(
      circle at 50% 36%,
      rgba(255, 255, 255, 0.055),
      transparent 38%
    ),
    #111116;
  transition:
    transform 220ms ease,
    border-color 220ms ease;
}

.step-card:hover {
  border-color: rgba(255, 255, 255, 0.24);
  transform: translateY(-5px);
}

.step-card--green {
  background:
    radial-gradient(
      circle at 50% 35%,
      rgba(201, 255, 69, 0.12),
      transparent 39%
    ),
    #121510;
}

.step-card--purple {
  background:
    radial-gradient(
      circle at 50% 35%,
      rgba(146, 115, 255, 0.15),
      transparent 39%
    ),
    #131119;
}

.step-card__number {
  color: #696970;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  font-weight: 750;
}

.step-card h3 {
  position: absolute;
  right: 29px;
  bottom: 63px;
  left: 29px;
  margin: 0;
  font-size: 23px;
  letter-spacing: -0.045em;
}

.step-card > p {
  position: absolute;
  right: 29px;
  bottom: 24px;
  left: 29px;
  margin: 0;
  color: #888890;
  font-size: 12px;
}

.stack-mini {
  position: relative;
  height: 230px;
  margin-top: 22px;
}

.stack-mini__card {
  position: absolute;
  left: 50%;
  display: flex;
  width: 215px;
  height: 114px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  background: #202027;
  box-shadow: 0 19px 40px rgba(0, 0, 0, 0.22);
  color: #b1b1b7;
  font-size: 12px;
  font-weight: 700;
}

.stack-mini__card--back {
  top: 17px;
  opacity: 0.42;
  transform: translateX(-50%) rotate(-8deg);
}

.stack-mini__card--middle {
  top: 39px;
  opacity: 0.7;
  transform: translateX(-50%) rotate(6deg);
}

.stack-mini__card--front {
  top: 68px;
  justify-content: space-between;
  padding: 0 23px;
  border-color: rgba(201, 255, 69, 0.24);
  background: #23271e;
  color: var(--white);
  transform: translateX(-50%) rotate(-1deg);
}

.stack-mini__card--front i {
  display: flex;
  width: 27px;
  height: 27px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink);
  font-style: normal;
  font-weight: 900;
}

.ten-mini {
  position: relative;
  display: flex;
  height: 246px;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.ten-mini__big {
  color: var(--green);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 118px;
  font-weight: 950;
  letter-spacing: -0.09em;
  line-height: 1;
  text-shadow: 0 0 45px rgba(201, 255, 69, 0.15);
}

.ten-mini__label {
  color: #9898a0;
  font-size: 10px;
  font-weight: 720;
  line-height: 1.25;
}

.ten-mini__progress {
  position: absolute;
  right: 31px;
  bottom: 32px;
  left: 31px;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}

.ten-mini__progress i {
  display: block;
  width: 70%;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
}

.scan-mini {
  position: relative;
  display: flex;
  height: 246px;
  align-items: center;
  justify-content: center;
}

.scan-mini__paper {
  position: relative;
  display: flex;
  width: 220px;
  height: 145px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 16px;
  background:
    linear-gradient(rgba(30, 55, 100, 0.1) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 23px;
  box-shadow: 0 30px 55px rgba(0, 0, 0, 0.3);
  color: #232742;
  font-family: "Comic Sans MS", cursive;
  font-size: 15px;
  transform: rotate(-4deg);
}

.scan-mini__paper::after {
  position: absolute;
  inset: 10px;
  border: 2px solid var(--purple);
  border-radius: 9px;
  content: "";
  opacity: 0.7;
}

.scan-mini__paper i {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--purple);
  box-shadow: 0 0 12px var(--purple);
  animation: scan 1.4s ease-in-out infinite alternate;
}

.scan-mini__check {
  position: absolute;
  right: 29px;
  bottom: 38px;
  display: flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 5px solid #151219;
  border-radius: 50%;
  background: var(--purple);
  color: var(--white);
  font-size: 20px;
  font-weight: 900;
}

.stack-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  align-items: center;
  gap: 76px;
  padding-top: 68px;
  padding-bottom: 150px;
}

.stack-section h2 {
  margin-top: 23px;
  font-size: clamp(42px, 4.4vw, 66px);
}

.stack-section__copy > p {
  max-width: 430px;
  margin: 26px 0 0;
  color: #9999a1;
  font-size: 14px;
  line-height: 1.75;
}

.clean-list {
  display: grid;
  gap: 13px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  color: #c8c8cd;
  font-size: 12px;
  font-weight: 650;
}

.clean-list li {
  display: flex;
  align-items: center;
  gap: 11px;
}

.clean-list span {
  display: inline-flex;
  width: 20px;
  height: 20px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(201, 255, 69, 0.11);
  color: var(--green);
  font-size: 10px;
}

.library-window {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 28px;
  background: #141419;
  box-shadow: 0 50px 110px rgba(0, 0, 0, 0.45);
}

.window-head {
  display: flex;
  min-height: 73px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: 0 22px;
}

.window-title {
  font-size: 13px;
  font-weight: 800;
}

.window-search {
  width: 183px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 9px 12px;
  color: #6f6f77;
  font-size: 9px;
}

.subject-tabs {
  display: flex;
  gap: 7px;
  padding: 16px 21px 8px;
}

.subject-tab {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 7px 12px;
  background: transparent;
  color: #797981;
  cursor: pointer;
  font-size: 9px;
  font-weight: 750;
}

.subject-tab.active {
  border-color: rgba(201, 255, 69, 0.22);
  background: rgba(201, 255, 69, 0.08);
  color: var(--green);
}

.concept-list {
  padding: 8px 13px 15px;
}

.concept-row {
  display: grid;
  min-height: 81px;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding: 8px 8px;
  transition:
    background 160ms ease,
    opacity 160ms ease;
}

.concept-row:hover {
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.025);
}

.concept-row:last-child {
  border-bottom: 0;
}

.concept-row--muted {
  opacity: 0.7;
}

.concept-icon {
  display: flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(201, 255, 69, 0.1);
  color: var(--green);
  font-family: Georgia, serif;
  font-size: 13px;
  font-weight: 750;
}

.concept-icon--purple {
  background: rgba(146, 115, 255, 0.12);
  color: var(--purple-soft);
}

.concept-icon--blue {
  background: rgba(108, 202, 255, 0.1);
  color: var(--blue);
}

.concept-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.concept-info strong {
  font-size: 11px;
}

.concept-info span {
  color: #73737b;
  font-family: Georgia, serif;
  font-size: 9px;
}

.add-stack {
  display: inline-flex;
  min-width: 73px;
  height: 33px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: #babac0;
  cursor: pointer;
  font-size: 9px;
  font-weight: 780;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.add-stack:hover {
  border-color: rgba(201, 255, 69, 0.3);
  color: var(--green);
}

.add-stack span {
  font-size: 12px;
}

.add-stack--added {
  border-color: rgba(201, 255, 69, 0.2);
  background: rgba(201, 255, 69, 0.08);
  color: var(--green);
}

.window-footer {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding: 0 21px;
  color: #74747b;
  font-size: 8px;
}

.window-footer strong {
  color: var(--green);
}

.paper-section {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(
      circle at 20% 50%,
      rgba(146, 115, 255, 0.12),
      transparent 32%
    ),
    #111116;
}

.paper-section__grid {
  display: grid;
  min-height: 720px;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 90px;
}

.paper-visual {
  position: relative;
  height: 530px;
}

.paper-photo {
  position: absolute;
  top: 38px;
  left: 50%;
  width: min(460px, 86%);
  height: 430px;
  overflow: hidden;
  border-radius: 27px;
  padding: 72px 48px 30px 67px;
  background:
    linear-gradient(90deg, transparent 48px, rgba(220, 76, 76, 0.18) 49px, transparent 50px),
    linear-gradient(rgba(35, 75, 140, 0.13) 1px, transparent 1px),
    #f3f0e7;
  background-size: 100% 100%, 100% 34px, 100% 100%;
  box-shadow: 0 50px 90px rgba(0, 0, 0, 0.45);
  color: #222a4d;
  font-family: "Comic Sans MS", cursive;
  transform: translateX(-50%) rotate(-3deg);
}

.paper-photo__top {
  position: absolute;
  top: 25px;
  right: 29px;
  left: 62px;
  display: flex;
  justify-content: space-between;
  color: rgba(32, 39, 75, 0.35);
  font-family: Arial, sans-serif;
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.paper-photo p {
  margin: 8px 0 27px;
  font-size: clamp(19px, 2vw, 26px);
  letter-spacing: 0.02em;
}

.paper-photo p:nth-of-type(2) {
  transform: rotate(1deg);
}

.paper-photo p:nth-of-type(3) {
  width: max-content;
  transform: rotate(-1deg);
}

.paper-photo__circle {
  position: absolute;
  top: 248px;
  left: 52px;
  width: 210px;
  height: 59px;
  border: 3px solid rgba(40, 48, 91, 0.7);
  border-radius: 50%;
  transform: rotate(-4deg);
}

.paper-photo__scan {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: var(--purple);
  box-shadow: 0 0 22px var(--purple);
  animation: paperScan 3s ease-in-out infinite;
}

.ai-bubble,
.review-chip {
  position: absolute;
  z-index: 4;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(22, 22, 28, 0.93);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(15px);
}

.ai-bubble {
  right: 1%;
  bottom: 40px;
  display: flex;
  min-width: 200px;
  align-items: center;
  gap: 12px;
  border-radius: 18px;
  padding: 14px;
}

.ai-bubble > span {
  display: flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink);
  font-weight: 900;
}

.ai-bubble div {
  display: flex;
  flex-direction: column;
}

.ai-bubble strong {
  font-size: 11px;
}

.ai-bubble small {
  margin-top: 2px;
  color: #7f7f87;
  font-size: 8px;
}

.review-chip {
  top: 110px;
  left: -2%;
  display: flex;
  flex-direction: column;
  border-radius: 15px;
  padding: 12px 15px;
  color: #85858c;
  font-size: 8px;
}

.review-chip strong {
  margin-top: 2px;
  color: var(--purple-soft);
  font-size: 12px;
}

.paper-section h2 {
  max-width: 520px;
  margin-top: 23px;
}

.paper-section__copy > p {
  max-width: 440px;
  margin: 28px 0 0;
  color: #9e9ea6;
  font-size: 14px;
  line-height: 1.78;
}

.feature-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  max-width: 440px;
  margin-top: 34px;
}

.feature-pair div {
  display: flex;
  flex-direction: column;
  gap: 11px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 15px;
}

.feature-pair strong {
  color: var(--purple-soft);
  font-family: Consolas, monospace;
  font-size: 9px;
}

.feature-pair span {
  color: #c8c8cd;
  font-size: 10px;
  font-weight: 700;
}

.groups {
  padding-top: 135px;
  padding-bottom: 140px;
}

.groups__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 50px;
}

.groups__head h2 {
  margin-top: 23px;
}

.groups__head > p {
  max-width: 390px;
  margin: 0 0 3px;
  color: #9999a1;
  font-size: 14px;
  line-height: 1.72;
}

.groups__board {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 16px;
  margin-top: 67px;
}

.group-card,
.leaderboard-card,
.discord-card,
.pressure-card {
  border: 1px solid var(--line);
  background: #121217;
}

.group-card--main {
  min-height: 520px;
  border-radius: 27px;
  padding: 27px;
  background:
    radial-gradient(
      circle at 80% 0,
      rgba(146, 115, 255, 0.12),
      transparent 33%
    ),
    #121217;
}

.group-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.group-identity {
  display: flex;
  align-items: center;
  gap: 13px;
}

.group-logo {
  display: flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: var(--purple);
  box-shadow: 0 12px 30px rgba(146, 115, 255, 0.2);
  color: white;
  font-family: Georgia, serif;
  font-size: 22px;
  font-weight: 800;
}

.group-identity > div:last-child {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.group-identity strong {
  font-size: 14px;
}

.group-identity span {
  color: #75757d;
  font-size: 8px;
}

.rank-badge {
  border: 1px solid rgba(146, 115, 255, 0.25);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(146, 115, 255, 0.08);
  color: var(--purple-soft);
  font-family: Consolas, monospace;
  font-size: 10px;
  font-weight: 800;
}

.group-score {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  margin-top: 28px;
  border-radius: 17px;
  padding: 19px 20px;
  background: rgba(255, 255, 255, 0.03);
}

.group-score > span {
  grid-column: 1;
  color: #6e6e76;
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
}

.group-score strong {
  grid-row: 2;
  grid-column: 1;
  margin-top: 2px;
  font-size: 27px;
  letter-spacing: -0.04em;
}

.group-score small {
  grid-row: 2;
  grid-column: 2;
  margin-bottom: 5px;
  color: var(--green);
  font-size: 8px;
}

.member-list {
  margin-top: 17px;
}

.member-row {
  display: grid;
  min-height: 60px;
  grid-template-columns: 23px 34px 1fr 94px 62px;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.065);
  padding: 0 7px;
  color: #bdbdc3;
  font-size: 9px;
}

.member-row:last-child {
  border-bottom: 0;
}

.member-rank {
  color: #67676e;
  font-family: Consolas, monospace;
}

.member-avatar {
  display: flex;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink);
  font-size: 7px;
  font-weight: 900;
}

.member-avatar--purple {
  background: var(--purple);
  color: white;
}

.member-avatar--blue {
  background: var(--blue);
}

.member-avatar--gray {
  background: #484850;
  color: white;
}

.member-name {
  font-weight: 750;
}

.member-level {
  color: #74747c;
}

.member-row > strong {
  justify-self: end;
  font-family: Consolas, monospace;
  font-size: 8px;
}

.member-row--danger {
  margin-top: 5px;
  border: 1px solid rgba(255, 116, 104, 0.18);
  border-radius: 10px;
  background: rgba(255, 116, 104, 0.045);
}

.member-row--danger .member-rank,
.member-row--danger > strong {
  color: var(--danger);
}

.side-board {
  display: grid;
  grid-template-rows: 1fr auto auto;
  gap: 14px;
}

.leaderboard-card {
  border-radius: 25px;
  padding: 22px;
}

.leaderboard-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 15px;
}

.leaderboard-card__head strong {
  font-size: 12px;
}

.leaderboard-card__head span {
  color: #67676f;
  font-size: 8px;
}

.leader-row {
  display: grid;
  min-height: 51px;
  grid-template-columns: 23px 31px 1fr auto;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: #9999a1;
  font-size: 9px;
}

.leader-row:last-child {
  border-bottom: 0;
}

.leader-row > span {
  color: #5f5f67;
  font-family: Consolas, monospace;
}

.leader-row i {
  display: flex;
  width: 27px;
  height: 27px;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: #23232a;
  color: var(--purple-soft);
  font-family: Georgia, serif;
  font-style: normal;
}

.leader-row strong {
  font-size: 9px;
}

.leader-row b {
  font-family: Consolas, monospace;
  font-size: 8px;
}

.leader-row--gold {
  color: #e3ce85;
}

.leader-row--active {
  margin: 3px -8px 0;
  border: 1px solid rgba(146, 115, 255, 0.18);
  border-radius: 10px;
  padding: 0 8px;
  background: rgba(146, 115, 255, 0.055);
  color: var(--purple-soft);
}

.discord-card,
.pressure-card {
  border-radius: 18px;
}

.discord-card {
  display: grid;
  min-height: 81px;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 0 17px;
}

.discord-icon {
  display: flex;
  width: 39px;
  height: 39px;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: #5865f2;
  color: white;
  font-size: 21px;
}

.discord-card > div:nth-child(2) {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.discord-card span {
  color: #77777f;
  font-size: 8px;
}

.discord-card strong {
  font-size: 10px;
}

.pressure-card {
  min-height: 86px;
  padding: 14px 17px;
}

.pressure-card > span {
  color: var(--danger);
  font-size: 7px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pressure-card strong {
  display: block;
  margin-top: 3px;
  font-size: 10px;
}

.pressure-bar {
  height: 3px;
  margin-top: 13px;
  overflow: hidden;
  border-radius: 999px;
  background: #2a2a30;
}

.pressure-bar i {
  display: block;
  width: 22%;
  height: 100%;
  background: var(--danger);
}

.founder {
  position: relative;
  display: flex;
  min-height: 460px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--line);
  text-align: center;
}

.founder__mark {
  color: var(--green);
  font-family: Georgia, serif;
  font-size: 75px;
  line-height: 0.6;
}

.founder blockquote {
  max-width: 900px;
  margin: 33px auto 0;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.25;
}

.founder__byline {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-top: 29px;
  text-align: left;
}

.founder__avatar {
  display: flex;
  width: 37px;
  height: 37px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--ink);
  font-size: 9px;
  font-weight: 900;
}

.founder__byline > div {
  display: flex;
  flex-direction: column;
}

.founder__byline strong {
  font-size: 10px;
}

.founder__byline div span {
  color: #76767d;
  font-size: 8px;
}

.waitlist {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(201, 255, 69, 0.14);
  background:
    radial-gradient(
      circle at 20% 65%,
      rgba(201, 255, 69, 0.1),
      transparent 34%
    ),
    radial-gradient(
      circle at 90% 20%,
      rgba(146, 115, 255, 0.12),
      transparent 33%
    ),
    #0e0e12;
}

.waitlist__noise {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(90deg, black, transparent 70%);
  pointer-events: none;
}

.waitlist__grid {
  position: relative;
  display: grid;
  min-height: 820px;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 95px;
  padding-top: 100px;
  padding-bottom: 100px;
}

.waitlist h2 {
  max-width: 600px;
  margin-top: 25px;
  font-size: clamp(46px, 5vw, 72px);
}

.waitlist__copy > p {
  max-width: 480px;
  margin: 27px 0 0;
  color: #a2a2a9;
  font-size: 14px;
  line-height: 1.75;
}

.waitlist__promise {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.waitlist__promise div {
  display: flex;
  align-items: center;
  gap: 13px;
}

.waitlist__promise span {
  color: var(--green);
  font-family: Consolas, monospace;
  font-size: 8px;
}

.waitlist__promise p {
  margin: 0;
  color: #c2c2c7;
  font-size: 11px;
  font-weight: 650;
}

.form-card {
  min-height: 603px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 29px;
  padding: 32px;
  background: rgba(23, 23, 29, 0.88);
  box-shadow: 0 50px 120px rgba(0, 0, 0, 0.48);
  backdrop-filter: blur(16px);
}

.form-heading {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 27px;
}

.form-heading__icon {
  display: flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: var(--green);
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

.form-heading > div {
  display: flex;
  flex-direction: column;
}

.form-heading strong {
  font-size: 15px;
}

.form-heading p {
  margin: 3px 0 0;
  color: #77777f;
  font-size: 9px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 13px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 15px;
}

.field > span {
  color: #acacb2;
  font-size: 9px;
  font-weight: 750;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 12px;
  outline: none;
  background: rgba(8, 8, 11, 0.48);
  color: var(--white);
  font-size: 12px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.field input {
  height: 48px;
  padding: 0 14px;
}

.field textarea {
  min-height: 112px;
  resize: vertical;
  padding: 13px 14px;
  line-height: 1.5;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #595961;
}

.field input:focus,
.field textarea:focus {
  border-color: rgba(201, 255, 69, 0.5);
  box-shadow: 0 0 0 3px rgba(201, 255, 69, 0.07);
}

.field.invalid input {
  border-color: rgba(255, 116, 104, 0.65);
}

.field-error {
  display: none;
  color: var(--danger);
  font-size: 8px;
}

.field.invalid .field-error {
  display: block;
}

.tester-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 3px 0 18px;
  border: 1px solid rgba(146, 115, 255, 0.18);
  border-radius: 14px;
  padding: 14px;
  background: rgba(146, 115, 255, 0.045);
  cursor: pointer;
}

.tester-check input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.custom-check {
  display: flex;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid #4a4a52;
  border-radius: 6px;
  color: transparent;
  font-size: 10px;
  font-weight: 900;
  transition:
    background 160ms ease,
    color 160ms ease,
    border-color 160ms ease;
}

.tester-check input:checked + .custom-check {
  border-color: var(--purple);
  background: var(--purple);
  color: white;
}

.tester-check input:focus-visible + .custom-check {
  outline: 3px solid rgba(146, 115, 255, 0.35);
  outline-offset: 3px;
}

.tester-check > span:last-child {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.tester-check strong {
  font-size: 10px;
}

.tester-check small {
  color: #77777f;
  font-size: 8px;
}

.honeypot {
  position: absolute;
  left: -9999px;
}

.button--submit {
  width: 100%;
  min-height: 52px;
  justify-content: space-between;
  margin-top: 3px;
  padding: 0 19px;
  background: var(--green);
  color: var(--ink);
}

.button--submit i {
  font-size: 18px;
  font-style: normal;
}

.button--submit:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
}

.form-note,
.form-status {
  margin: 11px 0 0;
  color: #67676e;
  font-size: 7px;
  line-height: 1.5;
  text-align: center;
}

.form-status {
  min-height: 12px;
  color: var(--danger);
  font-size: 8px;
}

.success-state {
  display: none;
  min-height: 535px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.success-state.show {
  display: flex;
}

.success-icon {
  display: flex;
  width: 74px;
  height: 74px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 14px rgba(201, 255, 69, 0.06);
  color: var(--ink);
  font-size: 30px;
  font-weight: 950;
}

.success-state > span {
  margin-top: 31px;
  color: var(--green);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.success-state h3 {
  max-width: 400px;
  margin: 13px 0 0;
  font-size: 32px;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.success-state p {
  max-width: 350px;
  margin: 17px 0 0;
  color: #8d8d95;
  font-size: 11px;
  line-height: 1.65;
}

.success-state .text-button {
  margin-top: 24px;
  color: #bdbdc3;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.site-footer {
  display: grid;
  width: min(1200px, calc(100% - 48px));
  min-height: 110px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  margin: 0 auto;
  color: #68686f;
  font-size: 9px;
}

.site-footer p {
  margin: 0;
}

.site-footer > span {
  justify-self: end;
}

.brand--footer .brand__mark {
  color: #bdbdc3;
}

.confetti {
  position: fixed;
  z-index: 100;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.confetti i {
  position: absolute;
  top: -20px;
  width: 8px;
  height: 15px;
  border-radius: 2px;
  animation: confettiFall 1.8s ease-in forwards;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 700ms ease,
    transform 700ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

@keyframes scan {
  from {
    top: 10px;
  }
  to {
    top: calc(100% - 12px);
  }
}

@keyframes paperScan {
  0%,
  15% {
    top: 0;
    opacity: 0;
  }
  22% {
    opacity: 1;
  }
  70% {
    opacity: 1;
  }
  80%,
  100% {
    top: calc(100% - 3px);
    opacity: 0;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0);
  }
  50% {
    transform: translateY(-12px) rotate(2deg);
  }
}

@keyframes scroll {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  35% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(10px);
  }
}

@keyframes confettiFall {
  0% {
    opacity: 1;
    transform: translateY(-10px) rotate(0);
  }
  100% {
    opacity: 0;
    transform: translateY(100vh) rotate(620deg);
  }
}

@media (max-width: 1060px) {
  .hero {
    gap: 34px;
  }

  .hero h1 {
    font-size: clamp(67px, 8.7vw, 92px);
  }

  .phone {
    width: 345px;
    min-height: 635px;
  }

  .paper-demo {
    height: 184px;
  }

  .problem-card {
    min-height: 447px;
  }

  .stack-section {
    gap: 42px;
  }

  .paper-section__grid,
  .waitlist__grid {
    gap: 55px;
  }
}

@media (max-width: 860px) {
  .site-header {
    grid-template-columns: 1fr auto;
    width: calc(100% - 36px);
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-button {
    display: flex;
    width: 42px;
    height: 42px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.035);
    cursor: pointer;
  }

  .menu-button span {
    width: 16px;
    height: 1px;
    background: white;
    transition: transform 180ms ease;
  }

  .menu-button.active span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .menu-button.active span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .mobile-nav {
    position: absolute;
    top: 71px;
    right: 0;
    left: 0;
    display: none;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 19px;
    background: rgba(16, 16, 21, 0.98);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(18px);
  }

  .mobile-nav.open {
    display: grid;
  }

  .mobile-nav a {
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    padding: 16px 20px;
    color: #c9c9ce;
    font-size: 13px;
    font-weight: 700;
  }

  .mobile-nav a:last-child {
    border-bottom: 0;
    background: var(--green);
    color: var(--ink);
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 50px;
    padding-top: 170px;
    padding-bottom: 110px;
    text-align: center;
  }

  .hero__copy {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero h1 {
    font-size: clamp(70px, 14vw, 104px);
  }

  .hero__lead {
    max-width: 610px;
  }

  .hero__product {
    min-height: 660px;
  }

  .phone {
    width: 375px;
  }

  .scroll-note {
    display: none;
  }

  .memory-strip__track {
    grid-template-columns: 1fr;
  }

  .memory-loop + .memory-loop {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .problem-section__grid,
  .stack-section,
  .paper-section__grid,
  .waitlist__grid {
    grid-template-columns: 1fr;
  }

  .problem-section__grid {
    gap: 30px;
  }

  .problem-section__copy {
    max-width: 580px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step-card {
    min-height: 420px;
  }

  .stack-section {
    gap: 50px;
  }

  .stack-section__copy {
    max-width: 650px;
  }

  .paper-section__grid {
    gap: 30px;
    padding-top: 90px;
    padding-bottom: 100px;
  }

  .paper-visual {
    order: 2;
  }

  .paper-section__copy {
    order: 1;
  }

  .groups__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .groups__board {
    grid-template-columns: 1fr;
  }

  .waitlist__grid {
    gap: 60px;
  }

  .waitlist__copy {
    max-width: 650px;
  }
}

@media (max-width: 580px) {
  .announcement {
    min-height: 42px;
    padding: 8px 12px;
    font-size: 10px;
  }

  .announcement a {
    display: none;
  }

  .site-header {
    top: 42px;
  }

  .brand__name {
    display: none;
  }

  .hero {
    padding: 145px 18px 85px;
  }

  .eyebrow {
    flex-direction: column;
    gap: 8px;
    font-size: 8px;
  }

  .hero h1 {
    font-size: clamp(58px, 18vw, 78px);
  }

  .hero__lead {
    margin-top: 27px;
    font-size: 16px;
  }

  .hero__actions {
    width: 100%;
    flex-direction: column;
    gap: 18px;
  }

  .button--primary {
    width: 100%;
  }

  .hero__proof {
    margin-top: 29px;
  }

  .hero__product {
    min-height: 600px;
  }

  .phone {
    width: min(334px, calc(100vw - 40px));
    min-height: 610px;
    border-radius: 42px;
    padding: 13px 16px 18px;
    transform: none;
  }

  .hero__product:hover .phone {
    transform: none;
  }

  .problem-card {
    min-height: 425px;
    padding: 15px;
  }

  .equation {
    font-size: 25px;
  }

  .paper-demo {
    height: 174px;
  }

  .handwriting {
    left: 45px;
    font-size: 16px;
  }

  .handwriting--two {
    font-size: 18px;
  }

  .answer-circle {
    left: 38px;
    width: 175px;
  }

  .orbit--one {
    top: 6px;
    right: -2px;
  }

  .orbit--two {
    bottom: 45px;
    left: -7px;
  }

  .orbit--three {
    display: none;
  }

  .memory-strip__track,
  .section-shell,
  .site-footer {
    width: calc(100% - 36px);
  }

  .memory-loop {
    flex-wrap: wrap;
    gap: 10px;
    padding: 20px 12px;
  }

  .memory-loop > span {
    width: 100%;
    margin: 0 0 2px;
    text-align: center;
  }

  .problem-section,
  .groups {
    padding-top: 90px;
    padding-bottom: 90px;
  }

  .problem-section h2,
  .section-heading h2,
  .stack-section h2,
  .paper-section h2,
  .groups h2,
  .waitlist h2 {
    font-size: 42px;
  }

  .decay-card {
    margin-top: 48px;
  }

  .decay-card__head {
    min-height: 61px;
    padding: 0 14px;
  }

  .decay-chart {
    height: 275px;
    padding: 28px 16px 38px 42px;
  }

  .chart-grid {
    top: 28px;
    right: 16px;
    bottom: 49px;
    left: 42px;
  }

  .chart-lines {
    height: 190px;
  }

  .chart-label {
    left: 12px;
  }

  .chart-axis {
    right: 16px;
    left: 42px;
  }

  .review-tag {
    display: none;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .steps {
    margin-top: 44px;
  }

  .step-card {
    min-height: 390px;
    padding: 23px;
  }

  .step-card h3 {
    right: 23px;
    bottom: 59px;
    left: 23px;
  }

  .step-card > p {
    right: 23px;
    bottom: 22px;
    left: 23px;
  }

  .stack-section {
    padding-top: 30px;
    padding-bottom: 100px;
  }

  .window-head {
    min-height: 63px;
  }

  .window-search {
    display: none;
  }

  .subject-tabs {
    overflow-x: auto;
  }

  .concept-row {
    grid-template-columns: 41px 1fr auto;
    gap: 9px;
    padding-right: 0;
    padding-left: 0;
  }

  .concept-icon {
    width: 38px;
    height: 38px;
  }

  .concept-info strong {
    font-size: 10px;
  }

  .concept-info span {
    font-size: 8px;
  }

  .add-stack {
    min-width: 59px;
    padding: 0 8px;
  }

  .window-footer span:last-child {
    display: none;
  }

  .paper-section__grid {
    min-height: auto;
  }

  .paper-visual {
    height: 420px;
  }

  .paper-photo {
    top: 28px;
    width: 89%;
    height: 340px;
    padding: 64px 31px 20px 52px;
  }

  .paper-photo p {
    margin-bottom: 21px;
    font-size: 17px;
  }

  .paper-photo__circle {
    top: 212px;
    left: 40px;
    width: 170px;
    height: 48px;
  }

  .ai-bubble {
    right: -2%;
    bottom: 5px;
    min-width: 180px;
  }

  .review-chip {
    top: 90px;
    left: -3%;
  }

  .feature-pair {
    grid-template-columns: 1fr;
  }

  .groups__head {
    gap: 24px;
  }

  .groups__board {
    margin-top: 45px;
  }

  .group-card--main {
    min-height: auto;
    padding: 19px;
  }

  .group-score {
    padding: 15px;
  }

  .member-row {
    grid-template-columns: 17px 29px 1fr 55px;
    gap: 7px;
  }

  .member-row .member-level {
    display: none;
  }

  .member-avatar {
    width: 27px;
    height: 27px;
  }

  .founder {
    min-height: 430px;
  }

  .founder blockquote {
    font-size: 25px;
  }

  .waitlist__grid {
    width: calc(100% - 32px);
    padding-top: 85px;
    padding-bottom: 85px;
  }

  .form-card {
    min-height: auto;
    border-radius: 24px;
    padding: 23px 18px;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .success-state {
    min-height: 480px;
  }

  .site-footer {
    min-height: 140px;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 9px;
    padding: 25px 0;
  }

  .site-footer > span {
    justify-self: center;
  }

  .brand--footer .brand__name {
    display: inline;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}