:root {
  --page-bg: #07101f;
  --surface: rgba(8, 22, 42, 0.84);
  --surface-soft: rgba(255, 255, 255, 0.11);
  --surface-hover: rgba(255, 255, 255, 0.17);
  --text: #ffffff;
  --muted: #d7e8fb;
  --line: rgba(255, 255, 255, 0.18);
  --yellow: #ffd53d;
  --orange: #ff8a34;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.34);
  --max-width: 1320px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--page-bg);
  font-family: "Nunito", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  color: #111827;
  background: #ffffff;
  border-radius: 10px;
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-160%);
}

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

.background,
.background-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.background {
  background: url("assets/background.png") center / cover no-repeat;
  transform: scale(1.02);
}

.background-overlay {
  background:
    linear-gradient(180deg, rgba(4, 11, 24, 0.42) 0%, rgba(4, 12, 25, 0.72) 48%, rgba(4, 11, 23, 0.92) 100%),
    radial-gradient(circle at 50% 0%, rgba(83, 198, 255, 0.22), transparent 46%);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 22px;
}

.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.brand-mark {
  width: 76px;
  height: 76px;
  display: block;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.26);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.brand-kicker,
.section-kicker {
  margin: 0 0 2px;
  color: #ffe99a;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-copy h1,
.section-heading h2 {
  margin: 0;
  font-family: "Baloo 2", "Trebuchet MS", sans-serif;
  line-height: 1;
}

.brand-copy h1 {
  font-size: clamp(1.8rem, 4vw, 2.55rem);
}

.brand-copy > p:last-child {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.game-count {
  min-width: 76px;
  padding: 9px 14px;
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.game-count strong {
  display: block;
  color: var(--yellow);
  font-family: "Baloo 2", sans-serif;
  font-size: 1.65rem;
  line-height: 1;
}

.game-count span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.games-section {
  margin-top: 18px;
  padding: 22px;
  background: rgba(6, 18, 36, 0.73);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(13px);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 16px;
}

.section-heading h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
}

.section-note {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 0.92rem;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.game-card {
  --accent: #74d4ff;
  position: relative;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 18px;
  overflow: hidden;
  color: var(--text);
  background:
    linear-gradient(155deg, color-mix(in srgb, var(--accent) 20%, transparent), transparent 48%),
    var(--surface-soft);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 21px;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.game-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  right: -52px;
  bottom: -62px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 34%, transparent);
  filter: blur(2px);
}

.game-card:hover {
  transform: translateY(-5px);
  background-color: var(--surface-hover);
  border-color: color-mix(in srgb, var(--accent) 68%, white 32%);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.28);
}

.game-card:focus-visible {
  outline: 4px solid #ffffff;
  outline-offset: 3px;
}

.game-number {
  position: absolute;
  top: 14px;
  right: 15px;
  color: rgba(255, 255, 255, 0.62);
  font-family: "Baloo 2", sans-serif;
  font-size: 0.88rem;
  font-weight: 800;
}

.game-icon {
  width: 74px;
  height: 74px;
  display: block;
  margin-bottom: 15px;
  border-radius: 20px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.24);
}

.game-info {
  display: block;
  position: relative;
  z-index: 1;
}

.game-info strong {
  display: block;
  font-family: "Baloo 2", "Trebuchet MS", sans-serif;
  font-size: 1.35rem;
  line-height: 1.08;
}

.game-info small {
  display: block;
  min-height: 42px;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.42;
}

.play-button {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding: 8px 12px;
  color: #07111f;
  background: var(--accent);
  border-radius: 11px;
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.play-button b {
  font-size: 1.25rem;
  line-height: 0.8;
}

.card-hero { --accent: #ffbd45; }
.card-word { --accent: #65dcff; }
.card-tug { --accent: #ff7676; }
.card-fraction { --accent: #9be76d; }
.card-board { --accent: #c49cff; }
.card-clash { --accent: #ff87cc; }
.card-science { --accent: #64ebcf; }
.card-race { --accent: #ff9e55; }

.site-footer {
  padding: 16px 6px 3px;
  text-align: center;
}

.site-footer p {
  margin: 0;
  color: #e9f3ff;
  font-size: 0.88rem;
  font-weight: 800;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
}

.site-footer span {
  margin: 0 8px;
  color: var(--yellow);
}

@media (max-width: 1080px) {
  .game-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .game-card {
    min-height: 205px;
  }
}

@media (max-width: 680px) {
  .page-shell {
    padding: 12px;
  }

  .site-header {
    grid-template-columns: auto 1fr;
    gap: 13px;
    padding: 15px;
    border-radius: 20px;
  }

  .brand-mark {
    width: 60px;
    height: 60px;
    border-radius: 18px;
  }

  .brand-copy > p:last-child,
  .game-count,
  .section-note {
    display: none;
  }

  .games-section {
    margin-top: 12px;
    padding: 15px;
    border-radius: 22px;
  }

  .section-heading {
    margin-bottom: 13px;
  }

  .game-grid {
    grid-template-columns: 1fr;
    gap: 11px;
  }

  .game-card {
    min-height: 0;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 14px;
  }

  .game-icon {
    width: 54px;
    height: 54px;
    margin: 0;
    border-radius: 16px;
  }

  .game-number {
    display: none;
  }

  .game-info strong {
    font-size: 1.16rem;
  }

  .game-info small {
    min-height: 0;
    margin-top: 2px;
    font-size: 0.8rem;
  }

  .play-button {
    width: 40px;
    height: 40px;
    justify-content: center;
    margin: 0;
    padding: 0;
    border-radius: 50%;
    font-size: 0;
  }

  .play-button b {
    font-size: 1.7rem;
  }
}

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

  .game-card {
    transition: none;
  }
}

@supports not (background: color-mix(in srgb, red 10%, transparent)) {
  .game-card {
    background: var(--surface-soft);
  }

  .game-icon {
    background: rgba(255, 255, 255, 0.13);
  }
}

/* Featured games */
.featured-section {
  margin-top: 18px;
  padding: 22px;
  background: linear-gradient(145deg, rgba(18, 42, 70, 0.86), rgba(6, 18, 36, 0.78));
  border: 1px solid rgba(255, 213, 61, 0.28);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(13px);
}

.featured-heading {
  margin-bottom: 16px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.featured-card {
  min-height: 250px;
  padding: 22px;
  border-color: color-mix(in srgb, var(--accent) 48%, rgba(255, 255, 255, 0.2));
}

.featured-card .game-icon {
  width: 82px;
  height: 82px;
}

.featured-card .game-info strong {
  font-size: 1.65rem;
}

.featured-card .game-info small {
  max-width: 48ch;
  min-height: 0;
  font-size: 0.94rem;
}

.featured-badge {
  position: absolute;
  top: 16px;
  right: 48px;
  z-index: 2;
  padding: 5px 9px;
  color: #07111f;
  background: var(--accent);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-expedition { --accent: #55e6ba; }
.card-snakes { --accent: #f3d65c; }
.card-fire { --accent: #ff765f; }
.card-smartcity { --accent: #70b7ff; }
.card-archer { --accent: #ffb24e; }
.card-rupiah { --accent: #75e19a; }

/* Collaboration callout */
.collaboration-section {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  margin-top: 18px;
  padding: 22px;
  background:
    linear-gradient(135deg, rgba(255, 213, 61, 0.12), rgba(85, 230, 186, 0.1)),
    rgba(6, 18, 36, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(13px);
}

.collaboration-icon {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  font-size: 1.9rem;
  background: linear-gradient(135deg, var(--yellow), #76e6c1);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.22);
}

.collaboration-copy h2 {
  margin: 0;
  font-family: "Baloo 2", "Trebuchet MS", sans-serif;
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  line-height: 1.05;
}

.collaboration-copy p:last-child {
  margin: 7px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.collaboration-copy a {
  color: #ffe99a;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-width: 150px;
  padding: 11px 15px;
  color: #07111f;
  background: linear-gradient(135deg, var(--yellow), #ffb54d);
  border-radius: 13px;
  font-size: 0.86rem;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(255, 181, 77, 0.2);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.contact-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(255, 181, 77, 0.28);
}

.contact-button:focus-visible {
  outline: 4px solid #ffffff;
  outline-offset: 3px;
}

@media (max-width: 780px) {
  .featured-grid {
    grid-template-columns: 1fr;
  }

  .collaboration-section {
    grid-template-columns: auto 1fr;
  }

  .contact-button {
    grid-column: 1 / -1;
    width: 100%;
  }
}

@media (max-width: 680px) {
  .featured-section {
    margin-top: 12px;
    padding: 15px;
    border-radius: 22px;
  }

  .featured-card {
    min-height: 0;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 14px;
  }

  .featured-card .game-icon {
    width: 54px;
    height: 54px;
    margin: 0;
  }

  .featured-card .game-info strong {
    font-size: 1.2rem;
  }

  .featured-card .game-info small {
    margin-top: 2px;
    font-size: 0.8rem;
  }

  .featured-card .play-button {
    width: 40px;
    height: 40px;
    justify-content: center;
    margin: 0;
    padding: 0;
    border-radius: 50%;
    font-size: 0;
  }

  .featured-badge,
  .featured-card .game-number {
    display: none;
  }

  .collaboration-section {
    grid-template-columns: 1fr;
    gap: 13px;
    padding: 17px;
    text-align: center;
  }

  .collaboration-icon {
    margin: 0 auto;
  }
}