:root {
  --storm-dark: #0b0e2d;
  --storm-purple: #1a1145;
  --storm-mid: #2d1b69;
  --electric-blue: #00d4ff;
  --electric-cyan: #00f0ff;
  --lightning-gold: #ffd700;
  --lightning-amber: #ffaa00;
  --storm-glow: #7b5ea7;
  --cloud-gray: #3a3566;
  --success-green: #00e676;
  --calm-sky: #eef5ff;
  --calm-blue: #caeaff;
  --calm-purple: #e5dcff;
  --calm-lilac: #f6f0ff;
  --surface-radius: 24px;
  --card-radius: 22px;
  --button-radius: 16px;
  --shadow-soft: 0 24px 70px rgba(14, 16, 50, 0.18);
  --shadow-storm: 0 24px 80px rgba(0, 212, 255, 0.16);
  --transition-bounce: 280ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-smooth: 220ms ease;
  --font-display: "Baloo 2", "Trebuchet MS", sans-serif;
  --font-body: "Fredoka", "Segoe UI", sans-serif;
  --content-width: min(1200px, calc(100vw - 2rem));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.55;
  overflow-x: clip;
  transition:
    background 400ms ease,
    color 300ms ease;
}

body[data-theme="storm"] {
  --page-bg: radial-gradient(circle at top, rgba(0, 212, 255, 0.12), transparent 35%), linear-gradient(180deg, #0b0e2d 0%, #17123f 35%, #100e37 100%);
  --section-bg: rgba(255, 255, 255, 0.045);
  --card-bg: linear-gradient(180deg, rgba(32, 24, 77, 0.92), rgba(18, 18, 56, 0.94));
  --card-border: rgba(0, 212, 255, 0.18);
  --text-main: #f4f6ff;
  --text-soft: #c8d3ff;
  --text-muted: #9ca7d8;
  --surface-glow: rgba(0, 212, 255, 0.18);
  --button-main: linear-gradient(135deg, #00d4ff, #008db7);
  --button-alt: rgba(255, 255, 255, 0.08);
  --edge-line: rgba(255, 255, 255, 0.11);
  --hero-overlay: linear-gradient(180deg, rgba(11, 14, 45, 0.2), rgba(11, 14, 45, 0.78));
  --badge-bg: rgba(0, 212, 255, 0.12);
  --badge-border: rgba(0, 212, 255, 0.24);
}

body[data-theme="calm"] {
  --page-bg: radial-gradient(circle at top, rgba(123, 94, 167, 0.18), transparent 40%), linear-gradient(180deg, #f5f9ff 0%, #eef3ff 35%, #fbf7ff 100%);
  --section-bg: rgba(255, 255, 255, 0.8);
  --card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(246, 241, 255, 0.96));
  --card-border: rgba(88, 93, 170, 0.12);
  --text-main: #191d45;
  --text-soft: #3b4c82;
  --text-muted: #6e75a1;
  --surface-glow: rgba(123, 94, 167, 0.14);
  --button-main: linear-gradient(135deg, #5b78ff, #6e51d4);
  --button-alt: rgba(64, 90, 175, 0.08);
  --edge-line: rgba(59, 76, 130, 0.12);
  --hero-overlay: linear-gradient(180deg, rgba(238, 245, 255, 0.2), rgba(245, 249, 255, 0.86));
  --badge-bg: rgba(110, 81, 212, 0.08);
  --badge-border: rgba(110, 81, 212, 0.16);
}

body {
  background: var(--page-bg);
  color: var(--text-main);
}

img,
video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

button,
input,
select {
  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;
}

.container {
  width: var(--content-width);
  margin: 0 auto;
}

.section {
  position: relative;
  padding: clamp(3.5rem, 6vw, 6rem) 0;
}

.section__header {
  display: grid;
  gap: 0.8rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 0.55rem;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--electric-blue);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

body[data-theme="calm"] .eyebrow {
  color: #5b60b2;
}

.section h1,
.section h2,
.section h3,
.site-footer h2,
.site-footer h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.section h1 {
  font-size: clamp(3rem, 9vw, 6.6rem);
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
}

.section p {
  margin: 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 2vw, 1.1rem);
}

.muted {
  color: var(--text-muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.button-row--spaced {
  margin-top: 1.2rem;
}

.button,
.theme-toggle,
.pill-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 3.35rem;
  padding: 0.85rem 1.3rem;
  border-radius: var(--button-radius);
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  transition:
    transform var(--transition-bounce),
    box-shadow var(--transition-smooth),
    border-color var(--transition-smooth),
    background var(--transition-smooth);
}

.button:hover,
.button:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible,
.pill-link:hover,
.pill-link:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  background: var(--button-main);
  color: #fff;
  box-shadow: 0 16px 40px rgba(0, 212, 255, 0.22);
}

.button--ghost {
  background: var(--button-alt);
  border-color: var(--edge-line);
  color: var(--text-main);
}

.pill-link {
  background: transparent;
  border-color: var(--edge-line);
  color: var(--text-soft);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  background: color-mix(in srgb, var(--page-bg) 72%, transparent);
  border-bottom: 1px solid var(--edge-line);
}

.site-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.7), transparent);
  opacity: 0.7;
}

body[data-theme="calm"] .site-header::after {
  opacity: 0.25;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 5rem;
  padding: 0.85rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand__crest {
  width: 3rem;
  height: 3rem;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--electric-blue), var(--storm-mid), var(--lightning-gold));
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), 0 12px 24px rgba(0, 212, 255, 0.24);
}

.brand__text strong,
.brand__text span {
  display: block;
}

.brand__text strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 0.9;
}

.brand__text span {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.site-nav__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-nav__links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.7rem 1rem;
  border-radius: 14px;
  text-decoration: none;
  color: var(--text-soft);
  border: 1px solid transparent;
  transition: var(--transition-smooth);
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible,
.site-nav__links a[aria-current="page"] {
  color: var(--text-main);
  border-color: var(--edge-line);
  background: rgba(255, 255, 255, 0.05);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  position: relative;
  min-width: 11rem;
  border-color: var(--edge-line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
}

.theme-toggle__track {
  position: relative;
  width: 2.6rem;
  height: 1.45rem;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.12), rgba(0, 212, 255, 0.28));
}

.theme-toggle__thumb {
  position: absolute;
  inset: 0.15rem auto 0.15rem 0.15rem;
  width: 1.15rem;
  border-radius: 50%;
  background: #fff;
  transition: transform var(--transition-bounce);
}

body[data-theme="storm"] .theme-toggle__thumb {
  transform: translateX(1.15rem);
}

.theme-toggle__label {
  display: grid;
  text-align: left;
  line-height: 1.05;
}

.theme-toggle__label strong {
  font-size: 0.93rem;
}

.theme-toggle__label span {
  color: var(--text-muted);
  font-size: 0.75rem;
}

#storm-effects,
#cursor-trail {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

#storm-effects {
  overflow: hidden;
}

.rain-layer,
.bolt-layer,
.pulse-layer {
  position: absolute;
  inset: 0;
}

.rain-drop {
  position: absolute;
  top: -18vh;
  width: 1.5px;
  height: 7rem;
  opacity: 0.32;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(171, 235, 255, 0.95));
  animation: rainFall linear infinite;
}

.lightning-bolt {
  position: absolute;
  width: 8px;
  transform-origin: top center;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(0, 240, 255, 0.85));
  clip-path: polygon(42% 0, 75% 0, 48% 40%, 72% 40%, 20% 100%, 34% 56%, 8% 56%);
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.95)) drop-shadow(0 0 36px rgba(0, 212, 255, 0.7));
  animation: boltStrike 650ms ease-out forwards;
}

.pulse-layer.is-flashing {
  animation: screenPulse 420ms ease-out;
}

.cursor-spark {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 1) 0%, rgba(0, 212, 255, 0.8) 40%, rgba(0, 212, 255, 0) 75%);
  filter: blur(1px);
  animation: sparkFade 520ms ease-out forwards;
}

body[data-theme="calm"] .rain-layer,
body[data-theme="calm"] .bolt-layer,
body[data-theme="calm"] .pulse-layer,
body[data-theme="calm"] #cursor-trail {
  opacity: 0;
}

.hero {
  padding-top: clamp(2rem, 4vw, 3.5rem);
}

.hero__grid,
.split {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
  align-items: center;
}

.hero__grid {
  grid-template-columns: 1.05fr 0.95fr;
  min-height: calc(100vh - 7rem);
}

.hero__copy {
  display: grid;
  gap: 1.25rem;
  position: relative;
  z-index: 2;
}

.hero__copy p {
  max-width: 38rem;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero__stats li,
.stat-chip {
  padding: 0.8rem 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--edge-line);
  color: var(--text-soft);
}

.hero__media {
  position: relative;
  min-height: clamp(26rem, 65vw, 42rem);
  border-radius: 34px;
  overflow: clip;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-storm);
  isolation: isolate;
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
  z-index: 2;
}

.hero__video,
.hero__fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__video {
  z-index: 1;
  opacity: 0;
  transition: opacity 320ms ease;
}

.hero__media.video-ready .hero__video {
  opacity: 1;
}

.hero__fallback {
  z-index: 0;
  background:
    radial-gradient(circle at 18% 30%, rgba(0, 212, 255, 0.42), transparent 18%),
    radial-gradient(circle at 75% 20%, rgba(123, 94, 167, 0.35), transparent 20%),
    linear-gradient(160deg, rgba(11, 14, 45, 0.95), rgba(45, 27, 105, 0.96));
}

.hero__fallback::before,
.hero__fallback::after {
  content: "";
  position: absolute;
  inset: -15%;
}

.hero__fallback::before {
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1), transparent 18%),
    radial-gradient(circle at 75% 55%, rgba(0, 212, 255, 0.22), transparent 22%),
    radial-gradient(circle at 50% 80%, rgba(255, 215, 0, 0.12), transparent 18%);
  animation: cloudDrift 16s ease-in-out infinite alternate;
}

.hero__fallback::after {
  background:
    linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.7) 44%, transparent 46%),
    linear-gradient(145deg, transparent 32%, rgba(0, 240, 255, 0.35) 34%, transparent 36%),
    linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.24));
  mix-blend-mode: screen;
  animation: lightningSweep 5.5s infinite;
}

.hero__caption {
  position: absolute;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 3;
  padding: 0.9rem 1rem;
  max-width: 18rem;
  border-radius: 18px;
  background: rgba(11, 14, 45, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
}

.hero__caption strong {
  display: block;
  margin-bottom: 0.15rem;
}

.surface-card,
.media-card,
.level-card,
.piece-card,
.blog-card,
.story-card,
.safety-card,
.gallery-card,
.board-panel,
.promo-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-soft);
}

body[data-theme="storm"] .surface-card,
body[data-theme="storm"] .media-card,
body[data-theme="storm"] .level-card,
body[data-theme="storm"] .piece-card,
body[data-theme="storm"] .blog-card,
body[data-theme="storm"] .story-card,
body[data-theme="storm"] .safety-card,
body[data-theme="storm"] .gallery-card,
body[data-theme="storm"] .board-panel,
body[data-theme="storm"] .promo-card {
  box-shadow: var(--shadow-soft), 0 0 0 1px rgba(0, 212, 255, 0.07), 0 0 30px rgba(0, 212, 255, 0.06);
}

.surface-card,
.story-card,
.safety-card,
.board-panel,
.promo-card {
  padding: clamp(1.1rem, 2vw, 1.5rem);
}

.piece-card,
.level-card,
.blog-card,
.gallery-card,
.promo-card,
.trust-badge,
.safety-card,
.story-card {
  transition:
    transform var(--transition-bounce),
    border-color var(--transition-smooth),
    box-shadow var(--transition-smooth);
}

.piece-card:hover,
.level-card:hover,
.blog-card:hover,
.gallery-card:hover,
.promo-card:hover,
.trust-badge:hover,
.safety-card:hover,
.story-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.28);
}

.hero-carousel {
  overflow: clip;
}

.hero-carousel__viewport {
  overflow: hidden;
  border-radius: 30px;
  border: 1px solid var(--card-border);
}

.hero-carousel__track {
  display: flex;
  gap: 1rem;
  width: max-content;
  padding: 0.8rem;
  animation: gallerySlide 46s linear infinite;
}

.hero-carousel__viewport:hover .hero-carousel__track {
  animation-play-state: paused;
}

.hero-carousel__item {
  width: clamp(15rem, 24vw, 22rem);
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.05);
}

.hero-carousel__item img {
  width: 100%;
  height: clamp(14rem, 24vw, 20rem);
  object-fit: cover;
}

.hero-carousel__item figcaption {
  padding: 0.95rem;
  color: var(--text-soft);
  font-weight: 600;
}

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.piece-card {
  position: relative;
  overflow: hidden;
}

.piece-card__toggle,
.level-card__toggle {
  width: 100%;
  padding: 1.35rem;
  border: 0;
  background: transparent;
  color: inherit;
  display: grid;
  gap: 0.8rem;
  text-align: left;
}

.piece-card__header,
.level-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.piece-card__icon {
  width: 4.5rem;
  height: 4.5rem;
  display: grid;
  place-items: center;
  border-radius: 22px;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.92), rgba(123, 94, 167, 0.8));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.piece-card[data-piece="knight"] .piece-card__icon {
  animation: knightBounce 2.3s infinite;
}

.piece-card[data-piece="king"] .piece-card__icon {
  animation: royalSway 3.4s ease-in-out infinite;
}

.piece-card[data-piece="pawn"] .piece-card__icon,
.piece-card[data-piece="rook"] .piece-card__icon,
.piece-card[data-piece="bishop"] .piece-card__icon,
.piece-card[data-piece="queen"] .piece-card__icon {
  animation: floatPiece 2.9s ease-in-out infinite;
}

.piece-card__summary strong,
.level-card__summary strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
}

.piece-card__summary span,
.level-card__summary span {
  color: var(--text-muted);
}

.piece-card__detail,
.level-card__detail {
  display: grid;
  gap: 1rem;
  padding: 0 1.35rem 1.35rem;
  border-top: 1px solid transparent;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 350ms ease,
    opacity 260ms ease,
    border-color 260ms ease;
}

.piece-card.is-open .piece-card__detail,
.level-card.is-open .level-card__detail {
  max-height: 80rem;
  opacity: 1;
  border-color: var(--edge-line);
}

.piece-card.is-open {
  transform: translateY(-4px);
}

.piece-card__detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1rem;
}

.piece-card__facts {
  display: grid;
  gap: 0.75rem;
}

.fact-chip {
  padding: 0.95rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--edge-line);
  background: rgba(255, 255, 255, 0.04);
}

.fact-chip strong {
  display: block;
  margin-bottom: 0.25rem;
}

.mini-board,
.move-board,
.puzzle-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  aspect-ratio: 1;
}

.move-board,
.puzzle-board {
  width: min(100%, 36rem);
}

.board-square {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 2rem;
}

.board-square--static {
  pointer-events: none;
}

.mini-board .board-square {
  min-height: 1.9rem;
}

.move-board .board-square,
.puzzle-board .board-square {
  min-height: clamp(2.7rem, 9vw, 4.5rem);
}

.board-square--light {
  background: #efe6cf;
}

.board-square--dark {
  background: #8b6b50;
}

.piece-token {
  width: 72%;
  height: 72%;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, 0.22);
  font-size: clamp(0.95rem, 4vw, 1.8rem);
  font-weight: 700;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.96), rgba(215, 226, 255, 0.8));
  color: #1d245f;
  box-shadow: inset 0 -6px 12px rgba(0, 0, 0, 0.1), 0 8px 14px rgba(15, 14, 31, 0.15);
}

.piece-token--black {
  background: radial-gradient(circle at top, rgba(99, 80, 160, 0.95), rgba(35, 25, 74, 0.98));
  color: #f5fbff;
}

.board-square.is-selected::after,
.board-square.is-solution-from::after,
.board-square.is-solution-to::after,
.board-square.is-hint::after,
.board-square.is-move::after {
  content: "";
  position: absolute;
  inset: 9%;
  border-radius: 16px;
}

.board-square.is-selected::after {
  border: 3px solid rgba(0, 212, 255, 0.98);
}

.board-square.is-move::after {
  inset: 36%;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.7);
}

.board-square.is-hint::after {
  border: 3px dashed rgba(255, 215, 0, 0.95);
}

.board-square.is-solution-from::after {
  border: 3px solid rgba(123, 94, 167, 0.95);
}

.board-square.is-solution-to::after {
  border: 3px solid rgba(0, 230, 118, 0.96);
  box-shadow: 0 0 28px rgba(0, 230, 118, 0.36);
}

.board-caption,
.board-status {
  color: var(--text-soft);
}

.piece-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.piece-selector button {
  min-width: 7rem;
  border: 1px solid var(--edge-line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border-radius: 14px;
  padding: 0.8rem 1rem;
  font-weight: 700;
}

.piece-selector button.is-active {
  background: var(--button-main);
  color: #fff;
  box-shadow: 0 12px 30px rgba(0, 212, 255, 0.22);
}

.puzzle-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1rem, 3vw, 1.8rem);
  align-items: start;
}

.board-panel {
  display: grid;
  gap: 1rem;
}

.board-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.board-panel__actions button {
  border: 1px solid var(--edge-line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border-radius: 14px;
  padding: 0.75rem 1rem;
  font-weight: 700;
}

.trust-grid,
.safety-grid,
.value-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.trust-badge {
  padding: 1.15rem;
  border-radius: 20px;
  text-align: center;
  border: 1px solid var(--edge-line);
  background: rgba(255, 255, 255, 0.05);
}

.trust-badge strong {
  display: block;
  margin-bottom: 0.3rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
}

.levels-timeline {
  position: relative;
  display: grid;
  gap: 1.15rem;
}

.levels-timeline::before {
  content: "";
  position: absolute;
  left: 2rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.7), rgba(255, 215, 0, 0.72));
}

.level-card {
  position: relative;
  margin-left: clamp(1.4rem, 3vw, 2.2rem);
  overflow: hidden;
}

.level-card::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 2rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.8);
  background: var(--electric-blue);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.38);
}

.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--edge-line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-soft);
  font-size: 0.85rem;
  font-weight: 700;
}

.level-card__detail {
  grid-template-columns: 1fr 1fr;
}

.level-card__detail ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-soft);
}

.level-card--spark::after,
.level-card--gust::after,
.level-card--thunderbolt::after,
.level-card--tempest::after,
.level-card--hurricane::after,
.level-card--storm-master::after,
.level-card--grandmaster::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
}

.level-card--spark::after {
  background: radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.22), transparent 18%);
  animation: sparkTwinkle 2.3s infinite;
}

.level-card--gust::after {
  background:
    linear-gradient(120deg, transparent 35%, rgba(255, 255, 255, 0.16) 40%, transparent 46%),
    linear-gradient(120deg, transparent 55%, rgba(0, 212, 255, 0.14) 60%, transparent 66%);
  animation: gustSweep 5s linear infinite;
}

.level-card--thunderbolt::after {
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.16), transparent);
  animation: pulseGlow 2.2s infinite;
}

.level-card--tempest::after {
  background:
    repeating-linear-gradient(105deg, transparent 0 1.3rem, rgba(255, 255, 255, 0.08) 1.3rem 1.45rem);
  animation: rainSweep 1.5s linear infinite;
}

.level-card--hurricane::after {
  background: conic-gradient(from 180deg, transparent, rgba(0, 212, 255, 0.25), transparent, rgba(255, 215, 0, 0.18), transparent);
  animation: spinAura 8s linear infinite;
}

.level-card--storm-master::after {
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.18), transparent 60%);
  animation: crownAura 3.4s ease-in-out infinite;
}

.level-card--grandmaster::after {
  background:
    conic-gradient(from 180deg, transparent, rgba(0, 212, 255, 0.18), transparent, rgba(255, 215, 0, 0.18), transparent),
    radial-gradient(circle at 20% 25%, rgba(255, 255, 255, 0.12), transparent 26%);
  animation: grandmasterStorm 4s ease-in-out infinite;
}

.media-card {
  overflow: hidden;
}

.media-card img,
.blog-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-grid,
.blog-grid,
.gallery-grid,
.feature-grid,
.preview-grid {
  display: grid;
  gap: 1rem;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.preview-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.blog-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.blog-card {
  overflow: hidden;
}

.blog-card__image {
  position: relative;
  height: 14rem;
}

.blog-card__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(11, 14, 45, 0.32));
}

.blog-card__content {
  padding: 1.2rem;
  display: grid;
  gap: 0.8rem;
}

.blog-meta {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.gallery-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: 12rem;
}

.gallery-card {
  position: relative;
  overflow: hidden;
}

.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}

.gallery-card:hover img,
.gallery-card:focus-within img {
  transform: scale(1.04);
}

.gallery-card figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 0.9rem 1rem;
  color: #fff;
  font-weight: 600;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.68));
}

.gallery-card:nth-child(1),
.gallery-card:nth-child(6) {
  grid-row: span 2;
}

.gallery-card:nth-child(3),
.gallery-card:nth-child(8) {
  grid-column: span 2;
}

.video-frame {
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-soft);
}

.video-frame video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #050711;
}

.split--video {
  grid-template-columns: 1.05fr 0.95fr;
}

.quote {
  padding: 1.2rem;
  border-radius: 20px;
  border: 1px solid var(--edge-line);
  background: rgba(255, 255, 255, 0.04);
  font-weight: 600;
}

.story-card {
  display: grid;
  gap: 0.8rem;
}

.story-card h3,
.safety-card h3,
.promo-card h3 {
  font-size: 1.5rem;
}

.safety-grid,
.value-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--edge-line);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
}

.site-footer__grid > p {
  grid-column: 1 / -1;
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 500ms ease,
    transform 500ms ease;
}

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

body.shake {
  animation: quickShake 220ms ease-in-out;
}

@keyframes cloudDrift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(-4%, 3%, 0) scale(1.04);
  }
}

@keyframes lightningSweep {
  0%,
  80%,
  100% {
    opacity: 0;
  }
  82%,
  84% {
    opacity: 0.85;
  }
  83%,
  85% {
    opacity: 0;
  }
}

@keyframes rainFall {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-6vw, 130vh, 0);
  }
}

@keyframes boltStrike {
  0% {
    opacity: 0;
    transform: scaleY(0.2);
  }
  25% {
    opacity: 1;
    transform: scaleY(1);
  }
  100% {
    opacity: 0;
    transform: scaleY(1);
  }
}

@keyframes screenPulse {
  0% {
    background: rgba(255, 255, 255, 0);
  }
  20% {
    background: rgba(255, 255, 255, 0.22);
  }
  100% {
    background: rgba(255, 255, 255, 0);
  }
}

@keyframes sparkFade {
  from {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    opacity: 0;
    transform: translate3d(0, -20px, 0) scale(0.2);
  }
}

@keyframes gallerySlide {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes floatPiece {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes knightBounce {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  35% {
    transform: translateY(-10px) rotate(-4deg);
  }
  70% {
    transform: translateY(-2px) rotate(4deg);
  }
}

@keyframes royalSway {
  0%,
  100% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(4deg);
  }
}

@keyframes pulseGlow {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.85;
  }
}

@keyframes sparkTwinkle {
  0%,
  100% {
    opacity: 0.25;
  }
  50% {
    opacity: 0.75;
  }
}

@keyframes gustSweep {
  from {
    transform: translateX(-10%);
  }
  to {
    transform: translateX(10%);
  }
}

@keyframes rainSweep {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(1.8rem);
  }
}

@keyframes spinAura {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes crownAura {
  0%,
  100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.85;
    transform: scale(1.06);
  }
}

@keyframes grandmasterStorm {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 0.92;
  }
}

@keyframes quickShake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-3px);
  }
  50% {
    transform: translateX(4px);
  }
  75% {
    transform: translateX(-2px);
  }
}

@media (max-width: 1080px) {
  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero__grid,
  .split,
  .split--video,
  .puzzle-layout,
  .piece-card__detail-grid {
    grid-template-columns: 1fr;
  }

  .grid--three,
  .feature-grid,
  .preview-grid,
  .blog-grid,
  .trust-grid,
  .safety-grid,
  .value-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .section {
    padding: 3.4rem 0;
  }

  .site-nav__links {
    justify-content: center;
  }

  .site-nav__actions,
  .site-footer__grid {
    width: 100%;
    justify-content: center;
    grid-template-columns: 1fr;
    text-align: center;
  }

  .theme-toggle {
    min-width: 100%;
  }

  .hero__media {
    min-height: 24rem;
  }

  .grid--three,
  .grid--two,
  .grid--four,
  .feature-grid,
  .preview-grid,
  .blog-grid,
  .trust-grid,
  .safety-grid,
  .value-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-card:nth-child(3),
  .gallery-card:nth-child(8) {
    grid-column: auto;
  }

  .gallery-card:nth-child(1),
  .gallery-card:nth-child(6) {
    grid-row: auto;
  }

  .hero-carousel__item {
    width: 14rem;
  }

  .levels-timeline::before {
    left: 1.3rem;
  }

  .level-card {
    margin-left: 1rem;
  }

  .level-card::before {
    left: -1.15rem;
  }

  .hero__stats li,
  .stat-chip {
    width: 100%;
  }
}

.blog-article {
  max-width: 780px;
  margin: 0 auto;
}

.blog-article__header {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.blog-article__hero {
  border-radius: var(--card-radius);
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border: 1px solid var(--card-border);
}

.blog-article__body {
  display: grid;
  gap: 0.6rem;
}

.blog-article__body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  color: var(--text-main);
  margin-top: 1.6rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--edge-line);
}

.blog-article__body h4 {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--electric-blue);
  margin-top: 0.8rem;
}

body[data-theme="calm"] .blog-article__body h4 {
  color: #5b60b2;
}

.blog-article__body p {
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  line-height: 1.7;
  color: var(--text-soft);
}

.blog-article__body ul {
  padding-left: 1.4rem;
  display: grid;
  gap: 0.4rem;
  color: var(--text-soft);
  font-size: clamp(1rem, 1.8vw, 1.1rem);
  line-height: 1.6;
}

.blog-graphs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
  margin-top: 1rem;
}

.blog-graphs figure {
  margin: 0;
  text-align: center;
}

.blog-graphs img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  background: #fff;
}

.blog-graphs figcaption {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

.blog-article__body .quote {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: var(--card-radius);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  font-family: var(--font-display);
  text-align: center;
  color: var(--lightning-gold);
  line-height: 1.4;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}