:root {
  --ink: #18231f;
  --muted: #69736e;
  --line: #dfe5df;
  --paper: #f7f8f3;
  --white: #fff;
  --lime: #d8f45c;
  --teal: #0e6b62;
  --coral: #f1745f;
  --yellow: #f7c84b;
  --shadow: 0 18px 50px rgba(24, 35, 31, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "Manrope", sans-serif;
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  height: 88px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.brand-mark {
  display: grid;
  width: 29px;
  height: 29px;
  place-items: center;
  color: var(--ink);
  background: var(--lime);
  border-radius: 50%;
  font-size: 23px;
  line-height: 1;
}

.brand-dot {
  color: var(--coral);
}

.top-nav {
  display: flex;
  gap: 32px;
  margin-left: 100px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.top-nav a {
  padding: 34px 0 31px;
  border-bottom: 2px solid transparent;
}

.top-nav a:hover,
.top-nav a.active {
  color: var(--ink);
  border-color: var(--coral);
}

.github-button {
  padding: 10px 15px;
  color: var(--white);
  background: var(--ink);
  border-radius: 5px;
  font-size: 12px;
  font-weight: 700;
  transition: transform 0.2s, background 0.2s;
}

.github-button:hover {
  background: var(--teal);
  transform: translateY(-2px);
}

.hero {
  display: flex;
  min-height: 470px;
  align-items: center;
  justify-content: space-between;
  padding: 73px 8.5% 78px;
  overflow: hidden;
}

.eyebrow,
.section-kicker {
  margin: 0 0 17px;
  color: var(--teal);
  font-family: "Manrope", sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.pulse {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  vertical-align: 1px;
  background: var(--coral);
  border-radius: 50%;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 21px;
  font-size: clamp(52px, 7vw, 86px);
  font-weight: 900;
  line-height: 0.99;
  letter-spacing: -0.085em;
}

h1 em {
  color: var(--coral);
  font-style: normal;
}

.hero-description {
  max-width: 330px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.hero-link,
.text-link {
  display: inline-flex;
  gap: 13px;
  align-items: center;
  padding-bottom: 6px;
  color: var(--ink);
  border-bottom: 2px solid var(--lime);
  font-size: 13px;
  font-weight: 800;
}

.hero-link span,
.text-link span {
  color: var(--coral);
  font-size: 18px;
}

.hero-art {
  position: relative;
  width: 310px;
  height: 285px;
  margin-right: 5%;
}

.art-ring {
  position: absolute;
  border: 1px solid var(--teal);
  border-radius: 50%;
}

.ring-one {
  top: 5px;
  left: 20px;
  width: 265px;
  height: 265px;
  border-width: 2px;
}

.ring-two {
  top: 46px;
  left: 61px;
  width: 184px;
  height: 184px;
  border-color: var(--coral);
  border-style: dashed;
}

.art-square {
  position: absolute;
  display: grid;
  place-items: center;
  font-family: "Manrope", sans-serif;
  font-size: 31px;
  font-weight: 800;
}

.square-one {
  top: 20px;
  right: 5px;
  width: 69px;
  height: 69px;
  background: var(--yellow);
  transform: rotate(13deg);
}

.square-two {
  bottom: 19px;
  left: 17px;
  width: 78px;
  height: 78px;
  color: var(--white);
  background: var(--teal);
  transform: rotate(-14deg);
}

.art-label {
  position: absolute;
  top: 102px;
  left: 104px;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  font-size: 15px;
  line-height: 0.95;
  letter-spacing: 0.1em;
  transform: rotate(-8deg);
}

.art-label strong {
  color: var(--coral);
  font-size: 27px;
  letter-spacing: 0.02em;
}

.library {
  padding: 65px 0 95px;
  border-top: 1px solid var(--line);
}

.section-heading,
.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
}

.section-kicker {
  margin-bottom: 9px;
  color: var(--muted);
}

h2 {
  margin-bottom: 0;
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: -0.06em;
}

h2 span {
  margin-left: 7px;
  color: var(--coral);
  font-family: "Manrope", sans-serif;
  font-size: 13px;
  letter-spacing: 0;
  vertical-align: 12px;
}

.search-wrap {
  position: relative;
  width: min(310px, 38%);
}

.search-wrap input {
  width: 100%;
  padding: 13px 57px 13px 39px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 4px;
  outline: none;
  font-size: 12px;
  transition: border 0.2s, box-shadow 0.2s;
}

.search-wrap input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(14, 107, 98, 0.12);
}

.search-icon {
  position: absolute;
  top: 9px;
  left: 14px;
  color: var(--teal);
  font-size: 22px;
}

.search-wrap kbd {
  position: absolute;
  top: 11px;
  right: 12px;
  padding: 2px 6px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 3px;
  font-family: "Manrope", sans-serif;
  font-size: 10px;
}

.clear-search {
  position: absolute;
  top: 8px;
  right: 9px;
  width: 25px;
  height: 25px;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 20px;
  line-height: 1;
}

.clear-search + kbd {
  display: none;
}

.toolbar {
  align-items: center;
  margin: 39px 0 23px;
}

.filters {
  display: flex;
  gap: 9px;
}

.filter-button {
  padding: 8px 15px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 20px;
  font-size: 12px;
}

.filter-button:hover,
.filter-button.active {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--ink);
}

.result-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.game-card {
  position: relative;
  display: flex;
  min-height: 297px;
  flex-direction: column;
  padding: 22px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid transparent;
  border-radius: 5px;
  box-shadow: var(--shadow);
  animation: rise 0.45s both;
  transition: transform 0.25s, box-shadow 0.25s, border 0.25s;
}

.game-card:hover {
  border-color: var(--teal);
  box-shadow: 0 23px 50px rgba(24, 35, 31, 0.12);
  transform: translateY(-5px);
}

.game-visual {
  position: relative;
  display: grid;
  height: 137px;
  margin: -22px -22px 21px;
  place-items: center;
  overflow: hidden;
  background: var(--teal);
}

.game-card:nth-child(2n) .game-visual {
  background: var(--coral);
}

.game-card:nth-child(3n) .game-visual {
  background: var(--yellow);
}

.visual-icon {
  color: var(--white);
  font-family: "Manrope", sans-serif;
  font-size: 62px;
  font-weight: 800;
  line-height: 1;
}

.game-card:nth-child(3n) .visual-icon {
  color: var(--ink);
}

.visual-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: linear-gradient(45deg, transparent 45%, #fff 46%, #fff 54%, transparent 55%);
  background-size: 21px 21px;
}

.game-label {
  position: absolute;
  top: 14px;
  left: 17px;
  color: rgba(255, 255, 255, 0.85);
  font-family: "Manrope", sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.game-card:nth-child(3n) .game-label {
  color: rgba(24, 35, 31, 0.7);
}

.game-content {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.game-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.game-title {
  margin-bottom: 7px;
  font-size: 21px;
  letter-spacing: -0.06em;
}

.game-description {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.game-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.tags {
  display: flex;
  gap: 6px;
}

.tag {
  padding: 4px 7px;
  color: var(--teal);
  background: #e7f1ed;
  border-radius: 3px;
  font-size: 10px;
}

.play-link {
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
}

.play-link.disabled {
  color: var(--muted);
  cursor: default;
}

.empty-state {
  padding: 65px 20px;
  text-align: center;
}

.empty-icon {
  color: var(--coral);
  font-size: 40px;
}

.empty-state h3 {
  margin: 12px 0 5px;
  font-size: 19px;
}

.empty-state p {
  color: var(--muted);
  font-size: 13px;
}

.empty-state button {
  padding: 9px 16px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: 3px;
  font-size: 12px;
}

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16%;
  padding: 70px 8.5%;
  color: var(--white);
  background: var(--ink);
}

.about .section-kicker {
  color: var(--lime);
}

.about h2 {
  font-size: 42px;
}

.about-copy {
  align-self: end;
  max-width: 355px;
}

.about-copy p {
  margin-bottom: 25px;
  color: #b4c0b9;
  font-size: 13px;
  line-height: 1.9;
}

.about .text-link {
  color: var(--white);
  border-color: var(--coral);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 22px 0;
  color: var(--muted);
  font-size: 11px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 32px, 560px);
  }

  .site-header {
    height: 70px;
  }

  .top-nav {
    display: none;
  }

  .github-button {
    padding: 9px 11px;
  }

  .hero {
    display: block;
    min-height: 0;
    padding: 66px 5% 58px;
  }

  h1 {
    font-size: 57px;
  }

  .hero-art {
    width: 260px;
    height: 230px;
    margin: 52px auto 0;
    transform: scale(0.86);
  }

  .section-heading {
    display: block;
  }

  .search-wrap {
    width: 100%;
    margin-top: 25px;
  }

  .toolbar {
    display: block;
    margin-top: 28px;
  }

  .filters {
    overflow-x: auto;
    padding-bottom: 5px;
  }

  .filter-button {
    flex: 0 0 auto;
  }

  .result-note {
    margin-top: 15px;
  }

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

  .about {
    grid-template-columns: 1fr;
    gap: 35px;
    padding: 55px 8%;
  }

  .about h2 {
    font-size: 35px;
  }

  .site-footer {
    flex-wrap: wrap;
    gap: 12px;
  }
}