/*
  Binary World Game — Signal Glass (light)
  Portal + shared game chrome. Phaser IDs preserved.
*/

html, body {
  height: 100%;
  margin: 0;
  overflow-x: hidden;
}

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

body,
.bw-game-body {
  --bw-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --bw-font-display: "Syne", "Avenir Next", "Segoe UI", sans-serif;
  --bw-font-body: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
  --bw-bg: #f7f6f2;
  --bw-surface: rgba(255, 255, 255, 0.82);
  --bw-surface-strong: #ffffff;
  --bw-border: rgba(18, 18, 16, 0.08);
  --bw-text: #151513;
  --bw-muted: #6b6962;
  --bw-accent: #0f766e;
  --bw-accent-soft: rgba(15, 118, 110, 0.12);
  --bw-shadow: 0 18px 48px rgba(18, 18, 16, 0.08);
  --bw-signal: linear-gradient(90deg, #0f766e 0%, #14b8a6 45%, #f59e0b 100%);

  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  padding-top: 64px;
  color: var(--bw-text);
  font-family: var(--bw-font-body);
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(15, 118, 110, 0.1), transparent 55%),
    radial-gradient(860px 420px at 90% 4%, rgba(245, 158, 11, 0.08), transparent 52%),
    var(--bw-bg);
  line-height: 1.65;
}

.main-content {
  flex: 1;
  width: 100%;
}

/* ===== Portal hero ===== */
.bw-game-portal {
  display: block;
}

.bw-game-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.bw-game-hero-plane {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(247, 246, 242, 0.2) 0%, rgba(247, 246, 242, 0.95) 90%),
    radial-gradient(ellipse 70% 55% at 50% 0%, rgba(20, 184, 166, 0.14), transparent 65%);
}

.bw-game-hero-plane::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: var(--bw-signal);
  opacity: 0.9;
}

.bw-game-hero-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3.4rem 0 2.6rem;
  text-align: center;
  animation: bw-game-rise 0.65s var(--bw-ease) both;
}

.bw-game-brand {
  margin: 0 0 0.55rem;
  color: var(--bw-accent);
  font-family: var(--bw-font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.bw-game-headline {
  margin: 0;
  font-family: var(--bw-font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

.bw-game-lead {
  margin: 0.9rem auto 0;
  max-width: 36rem;
  color: var(--bw-muted);
  font-size: 1.02rem;
  font-weight: 500;
}

.bw-game-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.bw-game-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: transform 0.25s var(--bw-ease), background-color 0.25s var(--bw-ease), border-color 0.25s var(--bw-ease);
}

.bw-game-btn-primary {
  background: var(--bw-accent);
  color: #fff;
  box-shadow: 0 12px 30px rgba(15, 118, 110, 0.28);
}

.bw-game-btn-primary:hover {
  transform: translateY(-2px);
  background: #0d9488;
}

.bw-game-btn-ghost {
  border: 1px solid var(--bw-border);
  background: var(--bw-surface);
  color: var(--bw-text);
}

.bw-game-btn-ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.35);
  background: var(--bw-accent-soft);
}

.bw-game-section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.4rem 0 1rem;
}

.bw-game-section-head {
  margin-bottom: 1.25rem;
  text-align: center;
}

.bw-game-section-head h2 {
  margin: 0;
  font-family: var(--bw-font-display);
  font-size: clamp(1.4rem, 2.8vw, 1.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.bw-game-section-head p {
  margin: 0.4rem 0 0;
  color: var(--bw-muted);
  font-size: 0.96rem;
  font-weight: 500;
}

.bw-game-grid,
.game-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  max-width: 1120px;
  margin: 0 auto 1.5rem;
}

.bw-game-card,
.game-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--bw-border);
  border-radius: 1.15rem;
  background: var(--bw-surface);
  box-shadow: var(--bw-shadow);
  color: inherit;
  text-decoration: none;
  transition: transform 0.28s var(--bw-ease), border-color 0.28s var(--bw-ease), box-shadow 0.28s var(--bw-ease);
}

.bw-game-card:hover,
.game-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 118, 110, 0.28);
  box-shadow: 0 24px 48px rgba(18, 18, 16, 0.1);
}

.bw-game-card-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}

.bw-game-card img,
.game-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  background: #eef2f1;
}

.bw-game-card-featured img {
  height: 100%;
  min-height: 220px;
}

.bw-game-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.1rem 1.15rem 1.2rem;
}

.bw-game-card-kicker {
  color: var(--bw-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bw-game-card h2,
.game-card h2 {
  margin: 0;
  padding: 0;
  font-family: var(--bw-font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--bw-text);
}

.bw-game-card-body p {
  margin: 0;
  color: var(--bw-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* legacy portal title (if any) */
.page-title {
  text-align: center;
  padding: 2rem 1rem 1.5rem;
}

.page-title h1 {
  margin: 0;
  font-family: var(--bw-font-display);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  letter-spacing: -0.04em;
}

.page-title p {
  margin: 0.5rem 0 0;
  color: var(--bw-muted);
}

/* ===== Game page chrome ===== */
.container {
  max-width: 1000px;
  padding: 2rem 1.1rem 1.5rem;
  margin: 0 auto;
  text-align: center;
}

.nav-back {
  margin-bottom: 1.1rem;
  text-align: center;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--bw-border);
  border-radius: 999px;
  background: var(--bw-surface);
  color: var(--bw-text);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: transform 0.25s var(--bw-ease), border-color 0.25s var(--bw-ease), background-color 0.25s var(--bw-ease);
}

.back-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.35);
  background: var(--bw-accent-soft);
}

.game-title {
  margin: 0 0 1rem;
  color: var(--bw-text);
  font-family: var(--bw-font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.game-bgm {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  margin: 1rem 0 1.25rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--bw-border);
  border-radius: 999px;
  background: var(--bw-surface);
  color: var(--bw-muted);
  font-size: 0.88rem;
  font-weight: 600;
  backdrop-filter: blur(12px);
}

.game-bgm button,
.nickname-bar button,
.board-pager .prev,
.board-pager .next {
  appearance: none;
  border: 1px solid var(--bw-border);
  border-radius: 999px;
  background: var(--bw-accent-soft);
  color: var(--bw-accent);
  font-family: var(--bw-font-body);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  transition: transform 0.2s var(--bw-ease), background-color 0.2s var(--bw-ease);
}

.game-bgm button:hover,
.nickname-bar button:hover,
.board-pager .prev:hover,
.board-pager .next:hover {
  transform: translateY(-1px);
  background: rgba(15, 118, 110, 0.18);
}

.game-bgm input[type="range"] {
  accent-color: var(--bw-accent);
  width: min(140px, 30vw);
}

#game-container {
  width: 800px;
  max-width: 100%;
  height: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--bw-border);
  border-radius: 1.1rem;
  background: #eef2f1;
  box-shadow: var(--bw-shadow);
}

#horserace-fullscreen-wrap.hr-fullscreen-active {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #060614;
}

#horserace-fullscreen-wrap.hr-fullscreen-active #game-container {
  width: 100% !important;
  height: 100% !important;
  max-width: none !important;
  aspect-ratio: unset !important;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

.description,
.hr-description,
.mg-description {
  max-width: 800px;
  margin: 2rem auto 0;
  padding: 1.35rem 1.25rem;
  border: 1px solid var(--bw-border);
  border-radius: 1.15rem;
  background: var(--bw-surface);
  box-shadow: var(--bw-shadow);
  color: var(--bw-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  text-align: left;
  backdrop-filter: blur(14px);
}

.description h2,
.hr-description h2,
.mg-description h2,
.description > h2 {
  position: relative;
  margin: 0 0 0.85rem;
  padding-left: 0.75rem;
  color: var(--bw-text);
  font-family: var(--bw-font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.description > h2::before,
.hr-description h2::before,
.mg-description h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 1.1rem;
  border-radius: 999px;
  background: var(--bw-signal);
}

.description h2 + h2,
.description > h2 + h2 {
  margin-top: 1.5rem;
}

.description ol {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1.1rem;
  display: grid;
  gap: 0.55rem;
}

.description ol li {
  position: relative;
  padding: 0.85rem 0.9rem 0.85rem 3.1rem;
  border: 1px solid var(--bw-border);
  border-radius: 0.85rem;
  background: var(--bw-surface-strong);
  color: var(--bw-text);
}

.description ol li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--bw-accent);
  color: #fff;
  font-weight: 800;
  font-size: 0.82rem;
}

.description ul {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.description ul li {
  position: relative;
  padding: 0.75rem 0.85rem 0.75rem 2.4rem;
  border: 1px solid var(--bw-border);
  border-radius: 0.85rem;
  background: var(--bw-surface-strong);
  color: var(--bw-text);
  text-align: left;
}

.description ul li::before {
  content: "";
  position: absolute;
  left: 0.9rem;
  top: 1.05rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--bw-accent);
}

.description h3 {
  margin: 1.1rem 0 0.45rem;
  padding-left: 0;
  color: var(--bw-accent);
  font-family: var(--bw-font-display);
  font-size: 1.02rem;
  font-weight: 700;
  text-align: left;
}

.description h3::before {
  content: none;
}

.description h3 + p {
  margin: 0 0 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--bw-border);
  border-radius: 0.85rem;
  background: var(--bw-surface-strong);
  color: var(--bw-text);
}

.description h3 + p::before {
  content: none;
}

.description .note {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--bw-muted);
}

/* ===== Leaderboards (dodge) ===== */
.leaderboards {
  max-width: 800px;
  margin: 0.5rem auto 1.4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.board-card {
  padding: 1rem;
  border: 1px solid var(--bw-border);
  border-radius: 1.05rem;
  background: var(--bw-surface);
  box-shadow: var(--bw-shadow);
  text-align: left;
  backdrop-filter: blur(12px);
}

.board-card h3 {
  margin: 0 0 0.7rem;
  color: var(--bw-accent);
  font-family: var(--bw-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.board-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.board-table th,
.board-table td {
  padding: 0.55rem 0.6rem;
  border-bottom: 1px solid var(--bw-border);
}

.board-table th {
  background: var(--bw-accent-soft);
  color: var(--bw-accent);
  text-align: left;
  font-weight: 700;
}

.board-table td {
  color: var(--bw-text);
}

.board-table .rank {
  width: 2.6rem;
  color: var(--bw-accent);
  font-weight: 700;
}

.board-table .score {
  font-weight: 700;
}

.board-empty {
  text-align: center;
  color: var(--bw-muted);
  padding: 1rem 0.5rem;
}

.nickname-bar {
  margin: 0.75rem 0 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  color: var(--bw-muted);
  font-weight: 600;
}

.nickname-bar input {
  max-width: 220px;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--bw-border);
  border-radius: 0.7rem;
  background: var(--bw-surface-strong);
  color: var(--bw-text);
  font-family: var(--bw-font-body);
}

.nickname-bar input::placeholder {
  color: var(--bw-muted);
}

.nickname-bar button {
  background: var(--bw-accent);
  color: #fff;
  border: none;
}

.nickname-bar button:hover {
  background: #0d9488;
}

.nickname-bar .hint,
#nickStatus {
  opacity: 0.9;
  font-size: 0.9rem;
  color: var(--bw-muted);
}

.board-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 0.7rem;
}

.board-pager .prev:disabled,
.board-pager .next:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.board-pager .info {
  color: var(--bw-muted);
  font-size: 0.88rem;
  font-weight: 600;
}

/* ===== Share icons ===== */
.icon-container {
  margin-top: 1.25rem;
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.link-icon {
  width: 42px;
  height: 42px;
  display: inline-block;
  background-size: cover;
  border-radius: 50%;
  border: 1px solid var(--bw-border);
  opacity: 0.92;
  transition: transform 0.25s var(--bw-ease), opacity 0.25s var(--bw-ease);
}

.link-icon:hover {
  transform: scale(1.08);
  opacity: 1;
}

.link-icon.twitter { background-image: url(../img/icon-twitter.png); }
.link-icon.facebook { background-image: url(../img/icon-facebook.png); }
.link-icon.kakao { background-image: url(../img/icon-kakao.png); }

/* ===== Ads ===== */
.side-ad {
  display: none;
}

@media (min-width: 1280px) {
  .side-ad {
    display: block;
    position: fixed;
    top: 120px;
    z-index: 20;
  }
  .side-ad.left-ad { left: 12px; }
  .side-ad.right-ad { right: 12px; }
}

/* ===== Motion ===== */
@keyframes bw-game-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .bw-game-hero-inner,
  .bw-game-card,
  .game-card,
  .back-btn,
  .bw-game-btn {
    animation: none !important;
    transition: none !important;
  }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .bw-game-card-featured {
    grid-template-columns: 1fr;
  }

  .bw-game-card-featured img {
    min-height: 180px;
    height: 200px;
  }
}

@media (max-width: 768px) {
  .bw-game-hero-inner,
  .bw-game-section {
    width: min(100% - 1.25rem, 1120px);
  }

  .bw-game-grid,
  .game-grid {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

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

  .container {
    padding: 1.25rem 0.75rem;
  }

  .game-title {
    font-size: 1.35rem;
  }

  .game-bgm {
    border-radius: 1rem;
  }

  #game-container {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .description,
  .hr-description,
  .mg-description {
    padding: 1.05rem 0.95rem;
    font-size: 0.94rem;
  }

  .description ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 500px) {
  .bw-game-card img,
  .game-card img {
    height: 160px;
  }

  .bw-game-btn {
    flex: 1 1 auto;
  }
}