/* ══════════════════════════════════════════
   ROOT + THEME TOKENS
══════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --radius:       14px;
  --font-display: 'Outfit', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --font-body:    'Outfit', sans-serif;
  --rainbow:      linear-gradient(135deg, #FF3CAC, #784BA0, #2B86C5, #00C9A7, #FFD700, #FF3CAC);
  --rainbow-size: 400% 400%;
  --transition:   0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-theme="dark"] {
  --bg:          #09090F;
  --surface:     #13131F;
  --surface2:    #1A1A2A;
  --border:      #252538;
  --border2:     #333355;
  --accent:      #7C6FFF;
  --accent-glow: rgba(124,111,255,0.22);
  --success:     #00E5A0;
  --warn:        #FF5757;
  --text:        #EEEEF8;
  --text2:       #9898C0;
  --muted:       #5A5A80;
  --muted2:      #252538;
  --card-bg:     #13131F;
  --nav-bg:      rgba(9,9,15,0.84);
  --shadow:      0 8px 36px rgba(0,0,0,0.5);
}

[data-theme="light"] {
  --bg:          #F3F3FD;
  --surface:     #FFFFFF;
  --surface2:    #F0F0FA;
  --border:      #DCDCF0;
  --border2:     #C4C4E8;
  --accent:      #5E52E8;
  --accent-glow: rgba(94,82,232,0.14);
  --success:     #00B882;
  --warn:        #E53535;
  --text:        #12122A;
  --text2:       #5050A0;
  --muted:       #8888B8;
  --muted2:      #E4E4F4;
  --card-bg:     #FFFFFF;
  --nav-bg:      rgba(243,243,253,0.88);
  --shadow:      0 6px 28px rgba(0,0,0,0.09);
}

/* ══════════════════════════════════════════
   BASE
══════════════════════════════════════════ */
html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s ease, color 0.35s ease;
}
h1, h2, h3 { font-family: var(--font-display); }

/* ══════════════════════════════════════════
   KEYFRAMES
══════════════════════════════════════════ */
@keyframes rainbowShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes pulseDot {
  0%,100% { opacity:1; transform:scale(1); }
  50%     { opacity:.4; transform:scale(.65); }
}
@keyframes blink {
  0%,100% { opacity:1; }
  50%     { opacity:0; }
}
@keyframes readyPop {
  0%   { opacity:0; transform:scale(1.4); }
  25%  { opacity:1; transform:scale(1); }
  75%  { opacity:1; }
  100% { opacity:0; transform:scale(.75); }
}
@keyframes fadeSlideIn {
  from { opacity:0; transform:translateY(10px); }
  to   { opacity:1; transform:translateY(0); }
}

/* ══════════════════════════════════════════
   SCREENS
══════════════════════════════════════════ */
.screen {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 24px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.28s ease;
}
.screen.active { opacity:1; pointer-events:all; }

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn {
  font-family: var(--font-display);
  font-weight: 700; font-size: 14px; letter-spacing: 0.03em;
  padding: 13px 28px; border-radius: 10px; border: none;
  cursor: pointer; transition: all 0.18s ease;
  position: relative; overflow: hidden; white-space: nowrap;
}
.btn::after { content:''; position:absolute; inset:0; background:#fff; opacity:0; transition:opacity .15s; }
.btn:hover::after { opacity:.07; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent); color: #FFF;
  box-shadow: 0 4px 18px var(--accent-glow);
}
.btn-primary:hover { transform:translateY(-1px); box-shadow:0 7px 26px var(--accent-glow); }
.btn-secondary { background:var(--surface2); color:var(--text); border:1px solid var(--border2); }
.btn-ghost     { background:transparent; color:var(--muted); border:1px solid var(--border); }
.btn-ghost:hover { border-color:var(--border2); color:var(--text); }
.btn-lg { font-size:16px; padding:16px 42px; border-radius:12px; }
.btn-sm { font-size:12px; padding:8px 18px; border-radius:8px; }
.btn-icon {
  padding:9px 14px; background:var(--surface2); border:1px solid var(--border);
  color:var(--muted); display:inline-flex; align-items:center; gap:6px; font-size:13px;
}
.btn-icon:hover { color:var(--text); border-color:var(--border2); }

/* Rainbow variant */
.btn-vivid { background:var(--accent); color:#FFF; position:relative; z-index:0; }
.btn-vivid::before {
  content:''; position:absolute; inset:-2px; border-radius:12px;
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 3s linear infinite;
  z-index:-1; opacity:0; transition:opacity .22s;
}
.btn-vivid:hover::before { opacity:1; }

/* ══════════════════════════════════════════
   NAV
══════════════════════════════════════════ */
.nav {
  position:fixed; top:0; left:0; right:0; height:56px;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 22px; border-bottom:1px solid var(--border);
  background:var(--nav-bg); backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
  z-index:200; transition:background .35s, border-color .35s;
}
.nav-logo {
  font-family:var(--font-display); font-weight:900; font-size:19px;
  letter-spacing:-.04em; cursor:pointer; user-select:none;
}
.logo-dot { color:var(--accent); }
.nav-actions { display:flex; gap:7px; align-items:center; }

/* Profile + popover */
.profile-wrap { position:relative; }
.profile-btn {
  width:34px; height:34px; border-radius:50%;
  background:var(--surface2); border:1px solid var(--border2);
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  position:relative; z-index:0; padding:0; transition:transform .2s;
}
.profile-btn:hover { transform:scale(1.08); }
.profile-btn::before {
  content:''; position:absolute; inset:-2px; border-radius:50%;
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 3.5s linear infinite;
  z-index:-1; opacity:0; transition:opacity .25s;
}
.profile-btn:hover::before { opacity:1; }
.profile-btn svg { pointer-events:none; color:var(--muted); transition:color .2s; }
.profile-btn:hover svg { color:var(--text); }

.theme-popover {
  position:absolute; top:calc(100% + 10px); right:0;
  background:var(--surface); border:1px solid var(--border2);
  border-radius:13px; padding:8px; min-width:165px;
  box-shadow:var(--shadow);
  opacity:0; pointer-events:none;
  transform:translateY(-8px) scale(.96); transition:opacity .2s, transform .2s;
  z-index:999;
}
.theme-popover.open { opacity:1; pointer-events:all; transform:translateY(0) scale(1); }
.theme-pop-label {
  font-size:10px; font-weight:800; letter-spacing:.12em;
  text-transform:uppercase; color:var(--muted); padding:4px 10px 8px;
}
.theme-divider { height:1px; background:var(--border); margin:4px 0; }
.theme-opt {
  display:flex; align-items:center; gap:9px; padding:9px 12px; border-radius:8px;
  cursor:pointer; font-size:13px; font-weight:600; color:var(--text2);
  transition:background .15s, color .15s;
}
.theme-opt:hover { background:var(--surface2); color:var(--text); }
.theme-opt.active { background:var(--surface2); color:var(--accent); }

/* ══════════════════════════════════════════
   RAINBOW CARD WRAPPER
══════════════════════════════════════════ */
.rc-wrap {
  position:relative; border-radius:calc(var(--radius) + 2px); z-index:0;
}
.rc-wrap::before {
  content:''; position:absolute; inset:-2px;
  border-radius:calc(var(--radius) + 3px);
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 4s linear infinite;
  opacity:0; transition:opacity .28s; z-index:-1;
}
.rc-wrap:hover::before { opacity:1; }

/* ══════════════════════════════════════════
   HOME SCREEN
══════════════════════════════════════════ */
#screen-home {
  padding-top:26px; overflow-y:auto;
  justify-content:flex-start; align-items:stretch;
  max-width:920px; margin:0 auto; width:100%;
}
.home-hero { text-align:center; padding:50px 0px 4px; }
.hero-pill {
  display:inline-flex; align-items:center; gap:8px;
  font-size:11px; font-weight:800; letter-spacing:.14em; text-transform:uppercase;
  color:var(--accent); background:var(--accent-glow); border:1px solid var(--accent);
  border-radius:999px; padding:5px 15px; margin-bottom:20px;
}
.hero-pill-dot {
  width:6px; height:6px; background:var(--accent); border-radius:50%;
  animation:pulseDot 1.4s ease infinite;
}
.home-hero h1 {
  font-size:clamp(40px, 7.5vw, 76px); font-weight:900;
  letter-spacing:-.04em; line-height:.95; margin-bottom:26px;
}
.grad-text {
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 5s linear infinite;
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.home-hero p { font-size:16px; color:var(--text2); max-width:4400px; margin:0 auto 28px; line-height:0; }
.ans-badge {
  display:inline-flex; align-items:center; gap:14px;
  background:var(--surface); border:1px solid var(--border2);
  border-radius:999px; padding:10px 22px; margin-bottom:24px; box-shadow:var(--shadow);
}
.ans-badge .label { font-size:11px; text-transform:uppercase; letter-spacing:.12em; color:var(--muted); font-weight:800; }
.ans-badge .value { font-family:var(--font-mono); font-size:20px; color:var(--accent); font-weight:600; }

.mode-grid {
  display:grid; grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));
  gap:13px; padding:0 24px 4px; width:100%;
}
.mode-card {
  background:var(--card-bg); border:1px solid var(--border); border-radius:var(--radius);
  padding:24px; cursor:pointer; text-align:left;
  transition:transform var(--transition), box-shadow .22s, border-color .22s;
}
.rc-wrap:hover { transform:translateY(-3px); }
.rc-wrap:hover .mode-card { box-shadow:0 14px 44px rgba(0,0,0,.28); border-color:transparent; }
.rc-wrap:hover .mode-card.locked { transform:none; box-shadow:none; }
.mode-card.locked { opacity:.42; cursor:not-allowed; }
.mode-icon { font-size:26px; margin-bottom:13px; display:block; }
.mode-tag { font-size:10px; font-weight:800; letter-spacing:.15em; text-transform:uppercase; color:var(--accent); margin-bottom:6px; display:block; }
.mode-card h3 { font-size:18px; font-weight:800; letter-spacing:-.02em; margin-bottom:6px; }
.mode-card p { font-size:13px; color:var(--text2); line-height:1.55; }
.mode-badge {
  position:absolute; top:16px; right:16px;
  background:var(--accent); color:#FFF; font-size:9px; font-weight:800;
  letter-spacing:.1em; text-transform:uppercase; padding:3px 9px; border-radius:5px;
}
.mode-badge.soon { background:var(--muted2); color:var(--muted); }
.streak-pill {
  display:inline-flex; align-items:center; gap:5px;
  background:rgba(255,215,0,.1); border:1px solid rgba(255,215,0,.3);
  border-radius:999px; padding:3px 10px; font-size:11px; font-weight:700; color:#FFCC00; margin-top:9px;
}

/* ══════════════════════════════════════════
   DIFFICULTY SELECT
══════════════════════════════════════════ */
#screen-diff {
  padding-top:56px; gap:22px; max-width:570px; width:100%; margin:0 auto;
}
.diff-header { text-align:center; }
.diff-header h2 { font-size:30px; font-weight:900; letter-spacing:-.03em; margin-bottom:6px; }
.diff-header p  { color:var(--text2); font-size:14px; }
.diff-grid { display:flex; flex-direction:column; gap:8px; width:100%; }

.diff-opt-wrap { border-radius:calc(var(--radius)+2px); position:relative; z-index:0; }
.diff-opt-wrap::before {
  content:''; position:absolute; inset:-2px; border-radius:calc(var(--radius)+3px);
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 4s linear infinite;
  opacity:0; transition:opacity .25s; z-index:-1;
}
.diff-opt-wrap:hover::before,
.diff-opt-wrap.sel::before { opacity:1; }

.diff-opt {
  background:var(--card-bg); border:1px solid var(--border);
  border-radius:var(--radius); padding:14px 18px;
  cursor:pointer; display:flex; align-items:center;
  justify-content:space-between; gap:12px; transition:border-color .2s;
}
.diff-opt-wrap:hover .diff-opt,
.diff-opt-wrap.sel .diff-opt { border-color:transparent; }
.diff-name  { font-weight:800; font-size:15px; letter-spacing:-.01em; }
.diff-desc  { font-size:12px; color:var(--text2); margin-top:2px; }
.diff-meta  { font-family:var(--font-mono); font-size:11px; color:var(--muted); text-align:right; line-height:1.65; }
.diff-range { font-weight:600; }
.diff-dot   { width:10px; height:10px; border-radius:50%; flex-shrink:0; transition:box-shadow .2s; }
.diff-opt-wrap.sel .diff-dot { box-shadow:0 0 10px currentColor; }
.diff-actions { display:flex; gap:10px; width:100%; }
.diff-actions .btn { flex:1; }

/* ══════════════════════════════════════════
   GAME SCREEN
══════════════════════════════════════════ */
#screen-game {
  padding-top:56px; gap:0; max-width:680px; width:100%; margin:0 auto;
}
.game-status { width:100%; display:flex; align-items:center; justify-content:space-between; padding:14px 0 10px; }
.game-round      { font-family:var(--font-mono); font-size:12px; color:var(--muted); font-weight:500; }
.game-diff-label { font-size:11px; font-weight:800; letter-spacing:.12em; text-transform:uppercase; color:var(--text2); }

.progress-bar { width:100%; height:3px; background:var(--muted2); border-radius:2px; margin-bottom:14px; overflow:hidden; }
.progress-fill {
  height:100%; border-radius:2px;
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 4s linear infinite; transition:width .35s ease;
}

.canvas-wrap {
  position:relative; width:100%; aspect-ratio:4/3; max-height:340px;
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); overflow:hidden;
  display:flex; align-items:center; justify-content:center;
}
#dot-canvas { position:absolute; inset:0; width:100%; height:100%; }
.canvas-overlay {
  position:absolute; inset:0; display:flex;
  flex-direction:column; align-items:center; justify-content:center;
  gap:12px; pointer-events:none;
}
.canvas-msg { font-size:13px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); }
.flash-bar {
  position:absolute; bottom:0; left:0; height:3px;
  background:var(--rainbow); background-size:var(--rainbow-size);
  animation:rainbowShift 3s linear infinite;
  width:100%; transform-origin:left; transform:scaleX(0);
}

.input-area { width:100%; margin-top:18px; display:flex; flex-direction:column; align-items:center; gap:13px; min-height:140px; }
.guess-prompt { font-size:12px; font-weight:800; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); }
.guess-display {
  font-family:var(--font-mono); font-size:68px; color:var(--text);
  min-width:190px; text-align:center; line-height:1;
  letter-spacing:-.04em; cursor:text; position:relative; font-weight:500;
}
.guess-display::after {
  content:''; position:absolute; right:-2px; top:8%; height:84%; width:3px;
  background:var(--accent); border-radius:2px; animation:blink 1s step-end infinite;
}
.guess-display.hv::after { display:none; }
.guess-hint { font-size:11px; color:var(--muted); font-weight:500; }

.guess-slider {
  width:100%; max-width:480px; -webkit-appearance:none;
  height:5px; border-radius:3px; background:var(--muted2); outline:none; cursor:pointer;
}
.guess-slider::-webkit-slider-thumb {
  -webkit-appearance:none; width:22px; height:22px; border-radius:50%;
  background:var(--accent); cursor:pointer;
  box-shadow:0 0 14px var(--accent-glow), 0 2px 6px rgba(0,0,0,.3);
  transition:transform .15s;
}
.guess-slider::-webkit-slider-thumb:hover { transform:scale(1.15); }
.guess-slider::-moz-range-thumb { width:22px; height:22px; border-radius:50%; background:var(--accent); border:none; cursor:pointer; }
.guess-actions { display:flex; gap:10px; }

.round-result { width:100%; display:none; align-items:center; justify-content:space-between; gap:18px; }
.round-result.vis { display:flex; }
.rscore { font-family:var(--font-mono); font-size:52px; font-weight:500; line-height:1; }
.rscore.perf { color:var(--success); }
.rscore.good { color:#50E3A4; }
.rscore.ok   { color:#F7C948; }
.rscore.bad  { color:var(--warn); }
.result-details { flex:1; }
.result-row { display:flex; align-items:baseline; gap:8px; margin-bottom:5px; }
.rlabel { font-size:10px; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); font-weight:800; min-width:52px; }
.rval   { font-family:var(--font-mono); font-size:17px; color:var(--text); font-weight:500; }
.rerr   { font-family:var(--font-mono); font-size:12px; font-weight:500; }
.rerr.over  { color:var(--warn); }
.rerr.under { color:#60A0FF; }

/* ══════════════════════════════════════════
   SUMMARY SCREEN
══════════════════════════════════════════ */
#screen-summary {
  padding-top:56px; overflow-y:auto;
  justify-content:flex-start; align-items:center;
  width:100%; max-width:680px; margin:0 auto; gap:18px;
}
.sum-header { text-align:center; padding:26px 0 0; width:100%; }
.sum-eyebrow { font-size:10px; font-weight:800; letter-spacing:.16em; text-transform:uppercase; color:var(--accent); margin-bottom:7px; }
.sum-header h2 { font-size:38px; font-weight:900; letter-spacing:-.04em; }
.sum-header .sub { color:var(--text2); font-size:14px; margin-top:5px; }

.sum-stats { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; width:100%; }
.stat-box { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:18px 14px; text-align:center; }
.stat-val { font-family:var(--font-mono); font-size:28px; font-weight:500; color:var(--text); display:block; margin-bottom:4px; }
.stat-val.ac { color:var(--accent); }
.stat-lbl { font-size:9px; font-weight:800; letter-spacing:.13em; text-transform:uppercase; color:var(--muted); }

.round-hist { width:100%; }
.round-hist h3 { font-size:11px; font-weight:800; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); margin-bottom:10px; }
.hist-list { display:flex; flex-direction:column; gap:5px; }
.hist-item { display:flex; align-items:center; gap:10px; background:var(--surface); border:1px solid var(--border); border-radius:9px; padding:9px 14px; }
.hi-n { font-family:var(--font-mono); font-size:11px; color:var(--muted); width:24px; font-weight:500; }
.hi-a { font-family:var(--font-mono); font-size:15px; color:var(--text); width:44px; font-weight:500; }
.hi-g { font-family:var(--font-mono); font-size:15px; width:44px; font-weight:500; }
.hi-bar { flex:1; height:4px; background:var(--muted2); border-radius:2px; overflow:hidden; }
.hi-fill { height:100%; border-radius:2px; }
.hi-s { font-family:var(--font-mono); font-size:13px; width:50px; text-align:right; font-weight:600; }

.daily-share {
  width:100%; background:var(--surface); border:1px solid var(--border2);
  border-radius:var(--radius); padding:18px 20px;
  display:flex; align-items:center; justify-content:space-between; gap:14px;
}
.ds-title { font-size:15px; font-weight:800; margin-bottom:3px; }
.ds-sub   { font-size:12px; color:var(--text2); }
.share-res { font-family:var(--font-mono); font-size:14px; color:var(--muted); display:none; margin-top:6px; }

.sum-actions { display:flex; gap:10px; padding-bottom:32px; flex-wrap:wrap; justify-content:center; }

/* ══════════════════════════════════════════
   STATS + LEADERBOARD SCREENS
══════════════════════════════════════════ */
#screen-stats,
#screen-leaderboard {
  padding-top:56px; overflow-y:auto;
  justify-content:flex-start; align-items:center;
  width:100%; max-width:680px; margin:0 auto;
}
.stats-wrap { width:100%; padding:28px 24px; display:flex; flex-direction:column; gap:22px; }
.sec-label { font-size:10px; font-weight:800; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin-bottom:10px; }

.ans-disp { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:28px; text-align:center; position:relative; overflow:hidden; }
.ans-disp::after {
  content:''; position:absolute; top:-80px; left:50%; transform:translateX(-50%);
  width:260px; height:260px; background:radial-gradient(circle, var(--accent-glow) 0%, transparent 70%); pointer-events:none;
}
.ans-val  { font-family:var(--font-mono); font-size:76px; color:var(--accent); line-height:1; letter-spacing:-.04em; font-weight:500; }
.ans-lbl  { font-size:10px; font-weight:800; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin-top:6px; }
.ans-pct  { font-size:13px; color:var(--text2); margin-top:5px; font-weight:500; }
.ans-pct strong { color:var(--accent); font-weight:700; }

.stats-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:10px; }
.stats-grid .stat-box { text-align:left; padding:14px; }
.stats-grid .stat-val { font-size:22px; }

.chart-wrap { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:18px; }
.chart-title { font-size:14px; font-weight:800; margin-bottom:3px; letter-spacing:-.01em; }
.chart-sub   { font-size:11px; color:var(--text2); margin-bottom:14px; display:block; }

.thr-box { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px 22px; }
.thr-lbl  { font-size:10px; font-weight:800; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); }
.thr-val  { font-family:var(--font-mono); font-size:44px; color:var(--accent); line-height:1.15; font-weight:500; }
.thr-desc { font-size:12px; color:var(--text2); margin-top:5px; line-height:1.55; }

.stats-empty { text-align:center; padding:60px 0; color:var(--muted); font-size:14px; }
.stats-empty h3 { font-size:20px; color:var(--text); margin-bottom:8px; font-weight:800; }

/* Leaderboard table */
.lb-table { display:flex; flex-direction:column; gap:4px; margin-bottom:4px; }
.lb-row {
  display:grid; grid-template-columns:36px 1fr 90px 70px;
  align-items:center; gap:8px; padding:10px 14px;
  background:var(--surface); border:1px solid var(--border);
  border-radius:9px; font-size:13px;
}
.lb-header {
  background:transparent; border-color:transparent;
  font-size:10px; font-weight:800; letter-spacing:.1em;
  text-transform:uppercase; color:var(--muted); padding:4px 14px;
}
.lb-first { border-color:var(--accent); }
.lb-rank  { font-family:var(--font-mono); font-weight:600; color:var(--muted); }
.lb-first .lb-rank { color:var(--accent); }
.lb-name  { font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.lb-score { font-family:var(--font-mono); font-weight:600; text-align:right; }
.lb-rounds { font-family:var(--font-mono); font-size:12px; color:var(--muted); text-align:right; }

/* ══════════════════════════════════════════
   READY NUMBER
══════════════════════════════════════════ */
.ready-num { font-family:var(--font-mono); font-size:90px; color:var(--text); font-weight:500; animation:readyPop .75s ease forwards; }

/* ══════════════════════════════════════════
   TOAST
══════════════════════════════════════════ */
#toast {
  position:fixed; bottom:24px; left:50%;
  transform:translateX(-50%) translateY(72px);
  background:var(--surface); border:1px solid var(--border2);
  border-radius:999px; padding:11px 22px;
  font-size:13px; font-weight:700; color:var(--text);
  z-index:9999; transition:transform .3s cubic-bezier(.34,1.56,.64,1);
  white-space:nowrap; box-shadow:var(--shadow);
}
#toast.show { transform:translateX(-50%) translateY(0); }

/* ══════════════════════════════════════════
   SCROLLBAR + UTILS
══════════════════════════════════════════ */
::-webkit-scrollbar { width:4px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--border2); border-radius:2px; }
[hidden] { display:none!important; }

@media (max-width:500px) {
  .home-hero h1 { font-size:40px; }
  .mode-grid { grid-template-columns:1fr; }
  .sum-stats { grid-template-columns:repeat(3,1fr); }
  .stats-grid { grid-template-columns:1fr 1fr; }
}