:root {
  --ink: #f5f8ff;
  --muted: #b9c6e4;
  --card: rgba(13, 22, 48, 0.86);
  --card-border: rgba(255, 255, 255, 0.14);
  --red: #d7263d;
  --red-dark: #a3162a;
  --green: #1f8a4c;
  --gold: #ffd700;
  --silver: #c0c0c0;
  --bronze: #cd7f32;
  --ice: #9fd8ff;
  --font-title: 'Mountains of Christmas', 'Georgia', serif;
  --font-body: 'Nunito', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;       /* no pull-to-refresh / bounce on phones */
  touch-action: none;              /* no double-tap zoom or panning */
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  background: #0b1430;
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
}

#game { position: fixed; inset: 0; }
#game canvas { display: block; width: 100%; height: 100%; touch-action: none; }

[hidden] { display: none !important; }

/* ---------------------------------------------------------------- HUD */

.hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-areas: "chips ribbon actions";
  align-items: start;
  gap: 10px;
  padding: calc(12px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) 12px calc(16px + env(safe-area-inset-left));
  pointer-events: none;
  z-index: 15; /* above overlays so Sign in / mute stay reachable from menus */
}
.hud > * { pointer-events: auto; }

/* Red 3D ribbon with gold lettering (Score | Time) */
.ribbon {
  grid-area: ribbon;
  position: relative;
  display: flex;
  align-items: center;
  padding: 8px 30px 10px;
  border-radius: 18px 18px 26px 26px / 18px 18px 30px 30px;
  background: linear-gradient(180deg, #ff4b4b 0%, #d81c25 38%, #a90d18 100%);
  border: 3px solid #ffd76a;
  box-shadow: 0 6px 0 #6e0710, 0 10px 24px rgba(0, 0, 0, 0.35), inset 0 3px 0 rgba(255, 255, 255, 0.35), inset 0 -4px 0 rgba(0, 0, 0, 0.2);
  pointer-events: none;
}
.ribbon::before, .ribbon::after {
  /* folded tails */
  content: '';
  position: absolute; top: 14px;
  width: 26px; height: 34px;
  background: linear-gradient(180deg, #b5101c, #7d0812);
  z-index: -1;
}
.ribbon::before { left: -18px; clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 35% 50%); }
.ribbon::after { right: -18px; clip-path: polygon(0 0, 100% 0, 65% 50%, 100% 100%, 0 100%); }
.ribbon-cell { display: flex; flex-direction: column; align-items: center; min-width: 92px; }
.ribbon-label, .ribbon-value {
  font-family: 'Lilita One', 'Arial Rounded MT Bold', 'Nunito', sans-serif;
  color: #ffe27a;
  line-height: 1;
  -webkit-text-stroke: 1px #7a3b00;
  text-shadow: 0 2px 0 #8a2c00, 0 0 10px rgba(255, 210, 90, 0.45);
  font-variant-numeric: tabular-nums;
}
.ribbon-label { font-size: 22px; letter-spacing: 0.04em; text-transform: uppercase; color: #ffd84a; -webkit-text-stroke: 1px #5a2600; }
.ribbon-value { font-size: 34px; color: #fff6dc; margin-top: 2px; }
.ribbon-divider {
  width: 3px; align-self: stretch; margin: 2px 16px;
  background: linear-gradient(180deg, transparent, #ffd76a, transparent);
  transform: skewX(-14deg);
}

.hud-chips { grid-area: chips; display: flex; gap: 8px; flex-wrap: wrap; justify-self: start; }
.chip {
  display: flex; flex-direction: column;
  min-width: 70px;
  padding: 5px 12px;
  border-radius: 12px;
  background: rgba(16, 26, 56, 0.55);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(6px);
}
.chip-label { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); font-weight: 800; }
.chip-value { font-size: 17px; font-weight: 900; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); font-weight: 700; }

.hud-actions { grid-area: actions; display: flex; gap: 8px; align-items: center; justify-self: end; }
.icon-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: rgba(10, 18, 40, 0.6);
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
}
.icon-btn.muted { opacity: 0.5; }

.user-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px 6px 6px;
  border-radius: 999px;
  background: rgba(10, 18, 40, 0.6);
  border: 1px solid var(--card-border);
  font-weight: 700;
}
.user-avatar {
  width: 28px; height: 28px; display: grid; place-items: center;
  border-radius: 50%; background: var(--red);
}
.user-name { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-btn {
  border: 0; background: rgba(255, 255, 255, 0.12); color: var(--ink);
  padding: 5px 10px; border-radius: 999px; font: inherit; font-size: 13px; cursor: pointer;
}
.link-btn:hover { background: rgba(255, 255, 255, 0.22); }

.level-toast {
  position: fixed; top: 22%; left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  font-family: var(--font-title); font-size: 44px; color: var(--gold);
  text-shadow: 0 0 18px rgba(255, 215, 0, 0.6), 0 3px 0 #7a4b00;
  opacity: 0; pointer-events: none; z-index: 4;
  transition: opacity 0.25s, transform 0.25s;
}
.level-toast.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ---------------------------------------------------------------- overlays */

.overlay, .modal {
  position: fixed; inset: 0;
  display: grid; place-items: center;
  padding: calc(16px + env(safe-area-inset-top)) 16px calc(16px + env(safe-area-inset-bottom));
  z-index: 10;
  background: radial-gradient(ellipse at center, rgba(8, 14, 34, 0.35), rgba(8, 14, 34, 0.75));
  overflow-y: auto;
}
.modal { z-index: 20; background: rgba(5, 9, 24, 0.7); }

.card {
  position: relative;
  width: min(520px, 100%);
  padding: 28px 28px 22px;
  border-radius: 22px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  text-align: center;
}
/* candy-cane trim */
.card::before {
  content: '';
  position: absolute; left: 22px; right: 22px; top: 0; height: 5px;
  border-radius: 0 0 6px 6px;
  background: repeating-linear-gradient(-45deg, var(--red) 0 10px, #fff 10px 20px);
}
.card-narrow { width: min(380px, 100%); }
.card-wide { width: min(560px, 100%); }

.title {
  margin: 4px 0 8px;
  font-family: var(--font-title);
  font-size: clamp(40px, 8vw, 58px);
  line-height: 1;
  color: #fff;
  text-shadow: 0 3px 0 var(--red-dark), 0 0 24px rgba(215, 38, 61, 0.5);
}
h2.title { font-size: clamp(34px, 7vw, 46px); }
.title-sm { font-size: 32px !important; }
.subtitle { margin: 0 0 16px; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 13px; margin: 12px 0 0; }

.controls { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 8px; text-align: left; }
.controls li { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: var(--muted); }
.controls span { margin-right: 8px; }
kbd {
  display: inline-block; min-width: 28px; padding: 2px 8px;
  border-radius: 6px; background: #fff; color: #182040;
  font: 800 13px var(--font-body); text-align: center;
  box-shadow: 0 2px 0 #9aa6c8;
}
/* Touch-first: phones see gesture help, keyboards see key help. */
.key-controls { display: none !important; }
@media (pointer: fine) {
  .key-controls { display: grid !important; }
  p.key-controls { display: block !important; }
  .touch-controls { display: none !important; }
}
.touch-controls li { flex-wrap: nowrap !important; }
.gesture { font-size: 20px; flex: 0 0 64px; text-align: center; }
input, textarea { -webkit-user-select: text; user-select: text; touch-action: manipulation; }
button { touch-action: manipulation; }

.btn-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 8px; }
.btn {
  min-width: 140px;
  padding: 12px 22px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.1);
  color: var(--ink);
  font: 800 16px var(--font-body);
  cursor: pointer;
  transition: transform 0.1s, background 0.2s;
}
.btn:hover { background: rgba(255, 255, 255, 0.18); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.6; cursor: progress; }
.btn-primary {
  background: linear-gradient(180deg, #e8394f, var(--red-dark));
  border-color: #ff6b7d;
  box-shadow: 0 4px 0 #6d0d1b, 0 8px 22px rgba(215, 38, 61, 0.4);
}
.btn-primary:hover { background: linear-gradient(180deg, #f04a5f, #b51b30); }
.btn-block { width: 100%; }

.progress { height: 10px; border-radius: 999px; background: rgba(255, 255, 255, 0.1); overflow: hidden; margin-top: 14px; }
.progress-bar {
  height: 100%; width: 0;
  background: repeating-linear-gradient(-45deg, var(--red) 0 10px, #fff 10px 20px);
  transition: width 0.2s;
}

/* ---------------------------------------------------------------- game over */

.final-score { display: flex; justify-content: center; gap: 28px; margin: 6px 0 4px; }
.final-score > div { display: flex; flex-direction: column; }
.final-score strong { font-size: 34px; font-weight: 900; font-variant-numeric: tabular-nums; }
.save-status { min-height: 1.3em; margin: 4px 0 10px; color: var(--muted); font-size: 14px; }
.save-status.good { color: #8ff0b0; }
.save-status.bad { color: #ff9aa8; }
.board-heading { margin: 4px 0 10px; font-size: 15px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }

/* ---------------------------------------------------------------- leaderboard */

.leaderboard { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 6px; text-align: left; }
.lb-row {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid transparent;
  font-weight: 700;
}
.lb-rank {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 50%;
  font-size: 18px; font-weight: 900;
}
.lb-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-name em { font-style: normal; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; padding: 2px 6px; border-radius: 6px; background: var(--green); color: #fff; vertical-align: middle; }
.lb-score { font-variant-numeric: tabular-nums; font-weight: 900; }
.lb-empty { padding: 14px; text-align: center; color: var(--muted); }

.rank-gold {
  background: linear-gradient(90deg, rgba(255, 215, 0, 0.28), rgba(255, 215, 0, 0.06));
  border-color: rgba(255, 215, 0, 0.7);
  box-shadow: 0 0 16px rgba(255, 215, 0, 0.35);
}
.rank-gold .lb-score, .rank-gold .lb-name { color: var(--gold); }
.rank-gold .lb-rank { background: radial-gradient(circle, rgba(255, 215, 0, 0.5), transparent 70%); }

.rank-silver {
  background: linear-gradient(90deg, rgba(192, 192, 192, 0.26), rgba(192, 192, 192, 0.05));
  border-color: rgba(220, 220, 220, 0.6);
  box-shadow: 0 0 12px rgba(192, 192, 192, 0.25);
}
.rank-silver .lb-score, .rank-silver .lb-name { color: #e6e6e6; }
.rank-silver .lb-rank { background: radial-gradient(circle, rgba(192, 192, 192, 0.5), transparent 70%); }

.rank-bronze {
  background: linear-gradient(90deg, rgba(205, 127, 50, 0.3), rgba(205, 127, 50, 0.05));
  border-color: rgba(205, 127, 50, 0.7);
  box-shadow: 0 0 12px rgba(205, 127, 50, 0.25);
}
.rank-bronze .lb-score, .rank-bronze .lb-name { color: #f0a868; }
.rank-bronze .lb-rank { background: radial-gradient(circle, rgba(205, 127, 50, 0.5), transparent 70%); }

.rank-default .lb-rank {
  background: radial-gradient(circle at 35% 30%, #ffffff, #d6e9ff 55%, #9fc3ef);
  color: #1d3a6b; font-size: 14px;
  box-shadow: inset 0 -2px 3px rgba(0, 0, 0, 0.15);
}
.rank-default .lb-score { color: var(--ice); }

.lb-row.is-me { outline: 2px solid #3ddc84; outline-offset: 1px; animation: me-pulse 1.6s ease-in-out infinite; }
@keyframes me-pulse { 50% { outline-color: rgba(61, 220, 132, 0.35); } }

/* ---------------------------------------------------------------- auth modal */

.close-btn {
  position: absolute; top: 10px; right: 12px;
  width: 32px; height: 32px; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, 0.1); color: var(--ink); font-size: 22px; line-height: 1; cursor: pointer;
}
.tabs { display: inline-flex; padding: 4px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); margin: 6px 0 4px; }
.tabs button {
  border: 0; background: transparent; color: var(--muted);
  padding: 7px 18px; border-radius: 999px; font: 800 14px var(--font-body); cursor: pointer;
}
.tabs button.active { background: var(--green); color: #fff; }
.field { display: grid; gap: 6px; text-align: left; font-weight: 700; font-size: 14px; color: var(--muted); margin: 12px 0 0; }
.field input {
  padding: 12px 14px; border-radius: 12px;
  border: 1px solid var(--card-border); background: rgba(255, 255, 255, 0.08);
  color: var(--ink); font: 700 16px var(--font-body);
}
.field input:focus { outline: 2px solid var(--ice); outline-offset: 1px; }
.form-error { min-height: 1.3em; color: #ff9aa8; font-size: 14px; margin: 10px 0; }

.credits {
  position: fixed; bottom: calc(6px + env(safe-area-inset-bottom)); right: 10px;
  font-size: 11px; color: rgba(255, 255, 255, 0.45);
  pointer-events: none; z-index: 3;
}

@media (max-width: 700px) {
  .hud {
    grid-template-columns: 1fr auto;
    grid-template-areas: "ribbon ribbon" "chips actions";
    padding: calc(6px + env(safe-area-inset-top)) calc(10px + env(safe-area-inset-right)) 8px calc(10px + env(safe-area-inset-left));
    row-gap: 8px;
  }
  .ribbon { justify-self: center; padding: 6px 22px 8px; }
  .ribbon-cell { min-width: 74px; }
  .ribbon-label { font-size: 17px; }
  .ribbon-value { font-size: 27px; }
  .chip { min-width: 58px; padding: 3px 9px; }
  .chip-value { font-size: 14px; }
  .icon-btn { width: 34px; height: 34px; font-size: 15px; }
  .user-chip { padding: 4px 6px 4px 4px; gap: 5px; font-size: 13px; }
  .user-avatar { width: 24px; height: 24px; }
  .user-name { max-width: 84px; }
  .card { padding: 24px 18px 18px; }
  .final-score strong { font-size: 28px; }
  .btn { min-width: 120px; }
}

/* ---------------------------------------------------------------- effects overlays */

.flash {
  position: fixed; inset: 0; pointer-events: none; z-index: 6;
  background: radial-gradient(circle at 50% 60%, rgba(255, 255, 255, 0.95), rgba(255, 240, 220, 0.6));
  opacity: 0;
}
.flash.go { animation: flash 0.45s ease-out; }
@keyframes flash { 0% { opacity: 0.85; } 100% { opacity: 0; } }

.float-layer { position: fixed; inset: 0; pointer-events: none; z-index: 7; overflow: hidden; }
.float-text {
  position: absolute;
  transform: translate(-50%, -50%);
  font-family: 'Lilita One', 'Nunito', sans-serif;
  font-size: 26px;
  color: #ffe27a;
  -webkit-text-stroke: 1px #7a3b00;
  text-shadow: 0 2px 0 #8a2c00, 0 0 12px rgba(255, 200, 80, 0.7);
  animation: float-up 0.8s ease-out forwards;
}
@keyframes float-up {
  0% { opacity: 0; transform: translate(-50%, -30%) scale(0.6); }
  20% { opacity: 1; transform: translate(-50%, -60%) scale(1.15); }
  100% { opacity: 0; transform: translate(-50%, -160%) scale(1); }
}

/* Vignette for a cosy, framed look */
body::after {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 2;
  background: radial-gradient(ellipse at 50% 55%, transparent 55%, rgba(10, 20, 50, 0.38) 100%);
}

.brand-logo { display: block; max-width: 160px; max-height: 80px; margin: 0 auto 6px; object-fit: contain; }
.peanut-line { margin: 2px 0 0; font-weight: 700; }

/* Bigger touch targets on phones */
@media (pointer: coarse) {
  .icon-btn { width: 44px; height: 44px; }
  .link-btn { padding: 8px 12px; }
  .btn { padding: 14px 24px; font-size: 18px; }
  .credits { display: none; }
}

/* First-run gesture tutorial */
.swipe-hint {
  position: fixed; left: 50%; bottom: calc(10px + env(safe-area-inset-bottom));
  width: max-content; max-width: calc(100% - 32px);
  transform: translateX(-50%);
  z-index: 8; pointer-events: none;
  text-align: center;
  padding: 6px 14px 8px;
  border-radius: 14px;
  background: rgba(12, 20, 46, 0.6);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(6px);
  font-weight: 800; font-size: 13px; line-height: 1.4;
  animation: hint-in 0.3s ease-out;
}
.swipe-hint p { margin: 4px 0 0; }
.swipe-hand { font-size: 24px; animation: swipe 1.6s ease-in-out infinite; }
@keyframes swipe {
  0%, 100% { transform: translateX(-34px) rotate(-10deg); }
  50% { transform: translateX(34px) rotate(10deg); }
}
@keyframes hint-in { from { opacity: 0; transform: translate(-50%, 12px); } }