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

:root {
  --bg:        #0a0a0f;
  --surface:   #13131a;
  --border:    #2a2a3a;
  --accent:    #e63946;
  --accent2:   #f4a261;
  --text:      #e8e8f0;
  --muted:     #6b6b80;
  --gold:      #ffd700;
  --green:     #a8e6cf;
  --canvas-bg: #090910;
  --grid-line: rgba(255,255,255,0.025);
  --overlay-bg: rgba(9,9,16,.88);
  --green-b:   #88d8b0;
  --glow-gold: rgba(255,215,0,.5);
  --glow-green: rgba(168,230,207,.4);
}

:root[data-theme="light"] {
  --bg:        #f0f0f5;
  --surface:   #ffffff;
  --border:    #d6d6e2;
  --accent:    #d62839;
  --accent2:   #c8762a;
  --text:      #1a1a24;
  --muted:     #6f6f85;
  --gold:      #b8860b;
  --green:     #2f9e6e;
  --canvas-bg: #e6e6f0;
  --grid-line: rgba(0,0,0,0.04);
  --overlay-bg: rgba(240,240,245,.9);
  --green-b:   #1f8a5c;
  --glow-gold: rgba(184,134,11,.25);
  --glow-green: rgba(47,158,110,.25);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100svh;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color .2s, color .2s;
}

/* ── Top controls (theme / mute) ──────────────────────────────── */

#top-controls {
  position: fixed;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  z-index: 100;
}

.icon-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  color: var(--text);
  transition: filter .15s, background-color .2s, border-color .2s;
}
.icon-btn:hover { filter: brightness(1.15); }
.icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── HUD ───────────────────────────────────────────────────── */

#hud {
  width: 100%;
  max-width: 700px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 6px;
  gap: 12px;
}

#hud-left, #hud-right {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 52px;
}
#hud-right { align-items: flex-end; }

#hud-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hud-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
}

.hud-value {
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

#score-display { color: var(--gold); }

#progress-bar-wrap {
  width: 100%;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width .15s ease;
  border-radius: 3px;
}

#type-legend {
  display: flex;
  gap: 14px;
  font-size: 11px;
  color: var(--muted);
}
.legend-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  margin-right: 3px;
  vertical-align: middle;
}
.dot-popup   { background: #33aa44; }
.dot-drifter { background: #2288cc; }
.dot-flyby   { background: #cc7700; }

/* ── Canvas wrap ────────────────────────────────────────────── */

#game-wrap {
  position: relative;
  width: 100%;
  max-width: 700px;
  cursor: crosshair;
  touch-action: none;
}

canvas {
  display: block;
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--canvas-bg);
}

/* ── Overlays ───────────────────────────────────────────────── */

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--overlay-bg);
  border-radius: 8px;
  gap: 14px;
  backdrop-filter: blur(6px);
  padding: 20px;
}
.overlay.hidden { display: none; }

.fade-in { animation: fade-in .25s ease both; }
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.overlay h1 {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: .04em;
  text-align: center;
  color: var(--accent);
  text-shadow: 0 0 30px rgba(230,57,70,.4);
}
.overlay p {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  line-height: 1.55;
}

#already-played-msg { color: var(--accent2) !important; }

#game-tagline {
  font-size: 12px;
  margin-top: -8px;
}

.hint-text {
  font-size: 11px;
  color: var(--border) !important;
  margin-top: -6px;
}

kbd {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 10px;
  font-family: inherit;
  color: var(--muted);
}

/* start screen prev result */
#start-today-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
#start-prev-grade {
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
}
#start-prev-score { font-size: 13px; color: var(--muted); }

.overlay-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

/* countdown */
#countdown-number {
  font-size: 96px;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
  animation: pulse-in .35s ease;
}
@keyframes pulse-in {
  from { transform: scale(1.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* ── Buttons ────────────────────────────────────────────────── */

.btn {
  padding: 11px 26px;
  border-radius: 6px;
  border: none;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .1s, filter .15s;
  letter-spacing: .04em;
  position: relative;
  -webkit-user-select: none;
}
.btn:active   { transform: scale(.95); }
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.12); }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { filter: brightness(1.15); }

.btn-link {
  background: none; border: none;
  color: var(--muted); font-size: 12px;
  cursor: pointer; padding: 2px 6px;
  border-radius: 4px; transition: color .15s;
}
.btn-link:hover { color: var(--text); }

/* ── Results overlay ────────────────────────────────────────── */

#results-overlay {
  justify-content: flex-start;
  padding: 0;
  overflow: hidden;
}

#results-scroll {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 18px 18px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#results-scroll::-webkit-scrollbar { width: 4px; }
#results-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

#result-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
}

#result-date {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

#result-grade-wrap {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

#result-grade {
  font-size: 66px;
  font-weight: 900;
  line-height: 1;
  animation: grade-pop .45s cubic-bezier(.2,1.6,.4,1) both;
}
@keyframes grade-pop {
  from { transform: scale(0.3) rotate(-15deg); opacity: 0; }
  to   { transform: scale(1)   rotate(0deg);   opacity: 1; }
}

#result-grade.grade-God {
  background: linear-gradient(90deg, #ff5e5e, #ffd700, #5ef0a0, #5ec8ff, #c084ff, #ff5e5e);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 30px var(--glow-gold), 0 0 60px var(--glow-gold);
  animation: grade-pop .45s cubic-bezier(.2,1.6,.4,1) both, god-shimmer 3s linear infinite;
}
@keyframes god-shimmer {
  from { background-position: 0% 0; }
  to   { background-position: 300% 0; }
}
.grade-SS { color: var(--gold); text-shadow: 0 0 20px var(--glow-gold), 0 0 40px var(--glow-gold); }
.grade-S { color: var(--gold);  text-shadow: 0 0 20px var(--glow-gold); }
.grade-A { color: var(--green); text-shadow: 0 0 20px var(--glow-green), 0 0 40px var(--glow-green); }
.grade-B { color: var(--green-b); text-shadow: 0 0 12px var(--glow-green); }
.grade-C { color: var(--accent2); }
.grade-D { color: var(--muted); }

#result-score-animated {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  min-width: 130px;
}

#emoji-grid {
  font-size: 18px;
  letter-spacing: 3px;
  line-height: 1.75;
  text-align: center;
}

/* stats row */
#result-stats {
  display: flex;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.stat-cell {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 4px;
  gap: 2px;
  border-right: 1px solid var(--border);
}
.stat-cell:last-child { border-right: none; }

.stat-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
}
.stat-value { font-size: 14px; font-weight: 700; }

/* breakdown */
#breakdown-section {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
#breakdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 12px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}
#breakdown-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border);
}
#breakdown-table.hidden { display: none; }

.bd-row {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 8px;
  background: var(--surface);
  font-size: 12px;
}
.bd-row.miss { opacity: .5; }
.bd-row.best { background: rgba(50,120,60,.25); }

.bd-num   { color: var(--muted); min-width: 20px; font-size: 10px; }
.bd-emoji { font-size: 13px; }
.bd-type  { color: var(--muted); font-size: 10px; flex: 1; }
.bd-time  { color: var(--muted); font-size: 11px; min-width: 32px; text-align: right; }
.bd-pts   { font-weight: 700; min-width: 34px; text-align: right; }
.bd-pts.pts-max  { color: var(--gold); }
.bd-pts.pts-high { color: var(--green); }
.bd-pts.pts-mid  { color: var(--accent2); }
.bd-pts.pts-miss { color: var(--muted); }

/* leaderboard */
#leaderboard-section {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
#leaderboard-header {
  padding: 7px 12px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}

#lb-entry-form {
  display: flex;
  gap: 8px;
  padding: 0 12px 10px;
}
#lb-entry-form.hidden { display: none; }
#lb-name-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 9px 10px;
  font-size: 13px;
  color: var(--text);
  font-family: inherit;
}
#lb-name-input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
#lb-entry-form .btn { padding: 9px 18px; font-size: 13px; }

#lb-status {
  padding: 0 12px 8px;
  font-size: 12px;
  color: var(--muted);
}
#lb-status.hidden { display: none; }

#lb-rank-info {
  padding: 0 12px 8px;
  font-size: 12px;
  color: var(--accent2);
  font-weight: 700;
}
#lb-rank-info.hidden { display: none; }

#lb-list-wrap {
  max-height: 220px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#lb-list-wrap.hidden { display: none; }
#lb-list-wrap::-webkit-scrollbar { width: 4px; }
#lb-list-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.lb-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
}
.lb-row:last-child { border-bottom: none; }
.lb-row.you { background: rgba(230,57,70,.15); }

.lb-rank  { color: var(--muted); min-width: 28px; font-weight: 700; }
.lb-name  { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-score { font-weight: 700; min-width: 50px; text-align: right; }
.lb-grade { min-width: 22px; text-align: right; font-weight: 700; }

#leaderboard-section.hidden { display: none; }

/* share */
#share-confirm {
  position: absolute;
  top: -30px; left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 10px;
  font-size: 12px;
  color: var(--green);
  white-space: nowrap;
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}
#share-confirm.show { opacity: 1; }

.result-actions {
  display: flex;
  gap: 10px;
  padding-bottom: 4px;
}

/* ── History strip ──────────────────────────────────────────── */

#history-strip {
  width: 100%;
  max-width: 700px;
  padding: 7px 14px 10px;
  display: flex;
  gap: 5px;
}

.history-day {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 6px 2px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color .2s;
}
.history-day.today { border-color: var(--accent); }

.day-label {
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.day-grade { font-size: 13px; font-weight: 700; }
.day-grade.empty { color: var(--border); }
.day-score { font-size: 9px; color: var(--muted); }

/* ── Miss flash ─────────────────────────────────────────────── */

#miss-flash {
  position: absolute;
  inset: 0;
  border-radius: 8px;
  border: 3px solid var(--accent);
  pointer-events: none;
  opacity: 0;
  transition: opacity .05s;
}
#miss-flash.flash { opacity: 1; }

/* ── Mobile ─────────────────────────────────────────────────── */

@media (max-width: 520px) {
  #hud { padding: 7px 10px 4px; gap: 8px; }
  .hud-value { font-size: 18px; }
  #type-legend { gap: 8px; font-size: 10px; }

  .overlay h1 { font-size: 28px; }
  .overlay p  { font-size: 12px; }
  #countdown-number { font-size: 72px; }

  #result-grade { font-size: 52px; }
  #result-score-animated { font-size: 16px; }
  #emoji-grid { font-size: 15px; letter-spacing: 2px; }

  .stat-label { font-size: 8px; }
  .stat-value { font-size: 12px; }

  #history-strip { padding: 5px 10px 8px; gap: 3px; }
  .day-grade { font-size: 11px; }
  .day-label { font-size: 8px; }

  .hint-text { display: none; }

  #lb-list-wrap { max-height: 160px; }
  .lb-row { font-size: 11px; padding: 6px 10px; }
}

@media (max-width: 360px) {
  .overlay-actions { flex-direction: column; align-items: stretch; }
  .btn { padding: 10px 18px; font-size: 13px; }

  #lb-entry-form { flex-direction: column; }
}