*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d0d0d;
  --glass: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.10);
  --accent: #6ee7b7;
  --accent-dim: rgba(110,231,183,0.15);
  --accent-glow: rgba(110,231,183,0.3);
  --text: #e8e8e8;
  --muted: #888;
  --danger: #f87171;
}

/* ── GITHUB CORNER ── */
#gh-corner {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 500;
  transition: all 0.2s;
  backdrop-filter: blur(12px);
}
#gh-corner:hover { color: var(--accent); border-color: var(--accent-glow); background: var(--accent-dim); }
#gh-corner svg { width: 15px; height: 15px; fill: currentColor; }

/* ── LANG SELECTOR ── */
#lang-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.lang-btn {
  padding: 6px 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}
.lang-btn:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }
.lang-btn.active { background: var(--accent-dim); border-color: var(--accent-glow); color: var(--accent); }

/* ── HINT BOX ── */
#hint-box {
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 0.78rem;
  color: #c4b5fd;
  line-height: 1.5;
}
#hint-box strong { color: #a78bfa; }

/* ── LOGO improvement ── */
.logo-wrap { display: flex; align-items: center; justify-content: space-between; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  overflow: hidden;
}

/* Animated background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 20%, rgba(110,231,183,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 85% 80%, rgba(139,92,246,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  display: flex;
  height: 100vh;
  gap: 16px;
  padding: 16px;
}

/* ── GLASS CARD ── */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ── LEFT PANEL ── */
#left-panel {
  width: 40%;
  flex-shrink: 0;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}

#left-panel::-webkit-scrollbar { width: 4px; }
#left-panel::-webkit-scrollbar-track { background: transparent; }
#left-panel::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 4px; }

.logo {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo span { color: var(--accent); }
.logo .logo-sub { font-size: 0.62rem; font-weight: 400; color: var(--muted); margin-left: 4px; letter-spacing: 0; }

/* Target card */
#target-card {
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: 14px;
  padding: 18px;
}

#target-card .label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 8px;
}

#target-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
}

/* Stats row */
#stats {
  display: flex;
  gap: 12px;
}

.stat-box {
  flex: 1;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 14px 12px;
  text-align: center;
}

.stat-box .stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 4px;
}

.stat-box .stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

/* Path */
#path-section { flex: 1; min-height: 0; display: flex; flex-direction: column; }
#path-section .section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-bottom: 10px;
}

#path-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#path-list::-webkit-scrollbar { width: 3px; }
#path-list::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 3px; }

.path-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  font-size: 0.8rem;
  animation: slideIn 0.25s ease;
}

.path-item.current {
  border-color: var(--accent-glow);
  background: var(--accent-dim);
}

.path-item .path-arrow { color: var(--accent); font-size: 0.7rem; }
.path-item .path-num { color: var(--muted); font-size: 0.65rem; min-width: 16px; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* New game button */
#new-game-btn {
  padding: 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

#new-game-btn:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-1px);
}

#new-game-btn:active { transform: translateY(0); }

/* ── RIGHT PANEL ── */
#right-panel {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  padding: 28px 32px;
  position: relative;
}

#right-panel::-webkit-scrollbar { width: 5px; }
#right-panel::-webkit-scrollbar-track { background: transparent; }
#right-panel::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 5px; }

#article-container {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#article-container.fading {
  opacity: 0;
  transform: translateY(8px);
}

#article-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 6px;
  letter-spacing: -0.8px;
  background: linear-gradient(135deg, #fff 60%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#article-breadcrumb {
  font-size: 0.73rem;
  color: var(--muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
}
#article-breadcrumb .lang-tag {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent-glow);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

#article-divider {
  height: 1px;
  background: linear-gradient(90deg, var(--accent-glow), transparent);
  margin-bottom: 22px;
}

#article-extract {
  font-size: 0.97rem;
  line-height: 1.9;
  color: #d0d0d0;
}
#article-extract p { margin-bottom: 1em; }

#article-extract .wiki-link {
  color: var(--accent);
  text-decoration: none;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s, background 0.15s;
  border-radius: 3px;
  padding: 0 2px;
}

#article-extract .wiki-link:hover {
  border-bottom-color: var(--accent);
  background: var(--accent-dim);
}

/* ── SPINNER ── */
#spinner {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: rgba(13,13,13,0.5);
  border-radius: 16px;
  z-index: 10;
  backdrop-filter: blur(4px);
}

#spinner.visible { display: flex; }

.spin-ring {
  width: 44px;
  height: 44px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── ERROR TOAST ── */
#error-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: rgba(248,113,113,0.15);
  border: 1px solid rgba(248,113,113,0.4);
  color: var(--danger);
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  backdrop-filter: blur(12px);
  transition: transform 0.3s ease;
  z-index: 100;
  white-space: nowrap;
}

#error-toast.show { transform: translateX(-50%) translateY(0); }

/* ── WIN OVERLAY ── */
#win-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(16px);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

#win-overlay.visible { display: flex; }

#win-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(110,231,183,0.3);
  border-radius: 24px;
  padding: 48px 52px;
  max-width: 560px;
  width: 90%;
  text-align: center;
  animation: popIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.88); }
  to   { opacity: 1; transform: scale(1); }
}

#win-card .win-emoji { font-size: 3.5rem; margin-bottom: 12px; }
#win-card h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 6px; }
#win-card .win-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 28px; }

.win-stats {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 28px;
}

.win-stat {
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: 12px;
  padding: 14px 24px;
}

.win-stat .ws-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin-bottom: 4px; }
.win-stat .ws-value { font-size: 1.6rem; font-weight: 700; color: #fff; }

#win-path {
  text-align: left;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 24px;
  max-height: 160px;
  overflow-y: auto;
  font-size: 0.8rem;
  line-height: 1.9;
  color: var(--muted);
}

#win-path::-webkit-scrollbar { width: 3px; }
#win-path::-webkit-scrollbar-thumb { background: var(--glass-border); }

#win-path .wp-arrow { color: var(--accent); margin: 0 4px; }

#play-again-btn {
  padding: 14px 36px;
  background: var(--accent);
  border: none;
  border-radius: 12px;
  color: #0d0d0d;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 0 24px var(--accent-glow);
}

#play-again-btn:hover { transform: translateY(-2px); box-shadow: 0 0 36px var(--accent-glow); }
#play-again-btn:active { transform: translateY(0); }

@keyframes pulseBorder {
  0%   { border-color: var(--accent); box-shadow: 0 0 0 0 var(--accent-glow); }
  70%  { box-shadow: 0 0 0 6px transparent; }
  100% { border-color: var(--accent-glow); box-shadow: none; }
}
.path-item.current { animation: slideIn 0.25s ease, pulseBorder 0.8s ease forwards; }

/* DIFFICULTY */
#diff-bar { display:flex; gap:8px; }
.diff-btn { flex:1; padding:8px 4px; background:var(--glass); border:1px solid var(--glass-border); border-radius:10px; color:var(--muted); font-family:'Inter',sans-serif; font-size:0.72rem; font-weight:700; cursor:pointer; transition:all .18s; text-align:center; }
.diff-btn:hover { color:var(--text); border-color:rgba(255,255,255,.2); }
.diff-btn.active-easy  { background:rgba(110,231,183,.15); border-color:rgba(110,231,183,.4); color:#6ee7b7; }
.diff-btn.active-medium{ background:rgba(251,191,36,.12);  border-color:rgba(251,191,36,.35); color:#fbbf24; }
.diff-btn.active-hard  { background:rgba(248,113,113,.12); border-color:rgba(248,113,113,.35); color:#f87171; }
.diff-label { font-size:.6rem; font-weight:400; opacity:.7; display:block; margin-top:2px; }

/* HINT BUTTON */
#hint-btn { width:100%; padding:10px; background:rgba(139,92,246,.1); border:1px solid rgba(139,92,246,.25); border-radius:10px; color:#a78bfa; font-family:'Inter',sans-serif; font-size:.8rem; font-weight:600; cursor:pointer; transition:all .2s; }
#hint-btn:hover { background:rgba(139,92,246,.18); }
#hint-btn:disabled { opacity:.4; cursor:not-allowed; }
#hint-output { font-size:.78rem; color:#c4b5fd; line-height:1.6; padding:10px 12px; background:rgba(139,92,246,.07); border:1px solid rgba(139,92,246,.15); border-radius:10px; display:none; }
#hint-output.visible { display:block; }
#hints-left { font-size:.65rem; color:var(--muted); text-align:center; margin-top:4px; }

/* ARTICLE IMAGE */
#article-img-wrap { width:100%; max-height:220px; overflow:hidden; border-radius:12px; margin-bottom:20px; position:relative; display:none; }
#article-img-wrap.visible { display:block; }
#article-img { width:100%; height:220px; object-fit:cover; border-radius:12px; }
#article-img-cap { position:absolute; bottom:0; left:0; right:0; padding:8px 12px; background:linear-gradient(transparent,rgba(0,0,0,.7)); font-size:.7rem; color:#ddd; border-radius:0 0 12px 12px; }

/* TUTORIAL MODAL */
#tutorial-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,.88); backdrop-filter:blur(18px); z-index:500; align-items:center; justify-content:center; }
#tutorial-overlay.visible { display:flex; }
#tutorial-card { background:rgba(255,255,255,.06); border:1px solid rgba(110,231,183,.25); border-radius:24px; padding:40px 44px; max-width:520px; width:92%; animation:popIn .4s cubic-bezier(.34,1.56,.64,1); }
#tutorial-card h2 { font-size:1.8rem; font-weight:800; color:#fff; margin-bottom:6px; }
#tutorial-card .t-sub { color:var(--muted); font-size:.85rem; margin-bottom:28px; }
.t-steps { display:flex; flex-direction:column; gap:14px; margin-bottom:28px; }
.t-step { display:flex; align-items:flex-start; gap:14px; padding:14px; background:var(--glass); border:1px solid var(--glass-border); border-radius:12px; }
.t-step .t-icon { font-size:1.5rem; flex-shrink:0; }
.t-step .t-text { font-size:.82rem; line-height:1.6; color:#ccc; }
.t-step .t-text strong { color:#fff; }
#start-playing-btn { width:100%; padding:14px; background:var(--accent); border:none; border-radius:12px; color:#0d0d0d; font-family:'Inter',sans-serif; font-size:1rem; font-weight:800; cursor:pointer; transition:all .2s; box-shadow:0 0 24px var(--accent-glow); }
#start-playing-btn:hover { transform:translateY(-2px); box-shadow:0 0 36px var(--accent-glow); }

/* TUTORIAL LANG */
#tutorial-lang-bar { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:20px; }
.tlang-btn { padding:7px 14px; background:var(--glass); border:1px solid var(--glass-border); border-radius:999px; color:var(--muted); font-family:'Inter',sans-serif; font-size:.75rem; font-weight:600; cursor:pointer; transition:all .18s; }
.tlang-btn:hover { color:var(--text); }
.tlang-btn.active { background:var(--accent-dim); border-color:var(--accent-glow); color:var(--accent); }

/* ACTION BUTTONS ROW */
#action-row { display:flex; gap:8px; }
#back-btn { flex:1; padding:10px 8px; background:rgba(251,191,36,.08); border:1px solid rgba(251,191,36,.2); border-radius:10px; color:#fbbf24; font-family:'Inter',sans-serif; font-size:.8rem; font-weight:600; cursor:pointer; transition:all .2s; }
#back-btn:hover:not(:disabled) { background:rgba(251,191,36,.15); }
#back-btn:disabled { opacity:.3; cursor:not-allowed; }
#solve-btn { flex:1; padding:10px 8px; background:rgba(248,113,113,.08); border:1px solid rgba(248,113,113,.2); border-radius:10px; color:#f87171; font-family:'Inter',sans-serif; font-size:.8rem; font-weight:600; cursor:pointer; transition:all .2s; }
#solve-btn:hover { background:rgba(248,113,113,.15); }

#article-extract h2 { font-size:1.05rem; font-weight:700; color:#fff; margin:20px 0 8px; padding-bottom:6px; border-bottom:1px solid var(--glass-border); }
#article-extract h3 { font-size:.9rem; font-weight:600; color:#ddd; margin:14px 0 6px; }
#article-extract p  { margin-bottom:12px; }
#article-extract ul, #article-extract ol { margin:0 0 12px 20px; }
#article-extract li { margin-bottom:4px; }
#article-extract table { display:none; }
#article-extract .mw-empty-elt, #article-extract .reference, #article-extract sup { display:none; }
#article-extract .wiki-link { color:var(--accent); cursor:pointer; border-bottom:1px solid transparent; transition:border-color .15s,background .15s; border-radius:3px; padding:0 2px; }
#article-extract .wiki-link:hover { border-bottom-color:var(--accent); background:var(--accent-dim); }

/* RELATED LINKS PANEL */
#related-links-section { margin-top:28px; }
#related-links-section .rl-title { font-size:.7rem; text-transform:uppercase; letter-spacing:1.5px; color:var(--muted); font-weight:600; margin-bottom:10px; display:flex; align-items:center; gap:8px; }
#related-links-section .rl-title::after { content:''; flex:1; height:1px; background:var(--glass-border); }
#related-links-wrap { display:flex; flex-wrap:wrap; gap:7px; }
.rl-link { padding:6px 12px; background:var(--glass); border:1px solid var(--glass-border); border-radius:999px; font-size:.78rem; color:var(--accent); cursor:pointer; transition:all .15s; }
.rl-link:hover { background:var(--accent-dim); border-color:var(--accent-glow); }

/* SOLVE OVERLAY */
#solve-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,.85); backdrop-filter:blur(16px); z-index:400; align-items:center; justify-content:center; }
#solve-overlay.visible { display:flex; }
#solve-card { background:rgba(255,255,255,.06); border:1px solid rgba(248,113,113,.3); border-radius:20px; padding:36px 40px; max-width:500px; width:92%; animation:popIn .3s ease; }
#solve-card h3 { font-size:1.4rem; font-weight:800; color:#f87171; margin-bottom:6px; }
#solve-card .sc-sub { color:var(--muted); font-size:.82rem; margin-bottom:20px; }
#solve-steps { display:flex; flex-direction:column; gap:8px; margin-bottom:20px; max-height:260px; overflow-y:auto; }
.sc-step { display:flex; align-items:center; gap:10px; padding:10px 14px; background:var(--glass); border:1px solid var(--glass-border); border-radius:10px; font-size:.83rem; }
.sc-step .sc-num { width:22px; height:22px; border-radius:50%; background:var(--accent-dim); border:1px solid var(--accent-glow); color:var(--accent); font-size:.7rem; font-weight:700; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.sc-step .sc-word { color:var(--accent); font-weight:600; }
.sc-step .sc-arrow { color:var(--muted); }
#solve-close-btn { width:100%; padding:12px; background:var(--glass); border:1px solid var(--glass-border); border-radius:10px; color:var(--text); font-family:'Inter',sans-serif; font-size:.9rem; font-weight:600; cursor:pointer; transition:all .2s; }
#solve-close-btn:hover { background:rgba(255,255,255,.09); }

@media (max-width: 780px) {
  html, body {
    height: auto;
    overflow: auto;
  }

  #app {
    flex-direction: column !important;
    height: auto !important;
    min-height: 100vh;
    padding: 10px;
  }

  #left-panel,
  #right-panel {
    width: 100% !important;
  }

  #left-panel {
    max-height: none;
    padding: 16px;
    overflow: visible;
  }

  #right-panel {
    padding: 18px;
    overflow: visible;
  }

  #stats,
  #action-row,
  #diff-bar {
    flex-direction: column;
  }

  #gh-corner {
    position: absolute;
    top: 10px;
    right: 10px;
  }

  .logo-wrap {
    padding-right: 130px;
  }

  #article-title {
    font-size: 1.45rem;
  }

  #win-card,
  #tutorial-card,
  #solve-card {
    padding: 28px 22px;
  }

  .win-stats {
    flex-direction: column;
  }
}