:root {
  --bg: #070908;
  --bg-elevated: #101510;
  --border: rgba(180, 255, 160, 0.1);
  --text: #f0f7ec;
  --text-muted: #8a9a84;
  --accent: #7cff6b;
  --accent-dim: #3d8f35;
  --accent-glow: rgba(124, 255, 107, 0.45);
  --amber: #ffc857;
  --amber-glow: rgba(255, 200, 87, 0.4);
  --heat: #ff6b4a;
  --purple: #b794f6;
  --gold: #ffd76a;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  --font: "Outfit", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --blinker-ms: 10000;
  --transition: 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --pen-metal-1: #1a1f1a;
  --pen-metal-2: #3a4438;
  --pen-metal-3: #151a15;
  --oil-1: rgba(180, 255, 120, 0.2);
  --oil-2: rgba(90, 160, 40, 0.55);
  --oil-3: rgba(50, 100, 20, 0.85);
}

/* Skins */
body[data-skin="classic"] {
  --accent: #7cff6b;
  --accent-dim: #3d8f35;
  --accent-glow: rgba(124, 255, 107, 0.45);
}
body[data-skin="gold"] {
  --accent: #ffd76a;
  --accent-dim: #c4962a;
  --accent-glow: rgba(255, 215, 106, 0.5);
  --pen-metal-1: #2a2410;
  --pen-metal-2: #6a5a28;
  --pen-metal-3: #1a1608;
  --oil-1: rgba(255, 230, 140, 0.25);
  --oil-2: rgba(200, 150, 40, 0.55);
  --oil-3: rgba(120, 80, 10, 0.85);
}
body[data-skin="purple"] {
  --accent: #c4a1ff;
  --accent-dim: #7c5cbf;
  --accent-glow: rgba(196, 161, 255, 0.5);
  --pen-metal-1: #1a1424;
  --pen-metal-2: #3d2f55;
  --pen-metal-3: #100c18;
  --oil-1: rgba(220, 180, 255, 0.25);
  --oil-2: rgba(140, 90, 200, 0.55);
  --oil-3: rgba(70, 40, 120, 0.85);
}
body[data-skin="ice"] {
  --accent: #7ee8ff;
  --accent-dim: #2a8fa8;
  --accent-glow: rgba(126, 232, 255, 0.5);
  --pen-metal-1: #121820;
  --pen-metal-2: #2a3a48;
  --pen-metal-3: #0a0e14;
  --oil-1: rgba(160, 240, 255, 0.25);
  --oil-2: rgba(60, 160, 200, 0.55);
  --oil-3: rgba(20, 80, 110, 0.85);
}
body[data-skin="inferno"] {
  --accent: #ff6b4a;
  --accent-dim: #b33a22;
  --accent-glow: rgba(255, 107, 74, 0.5);
  --pen-metal-1: #201410;
  --pen-metal-2: #4a2a20;
  --pen-metal-3: #140c08;
  --oil-1: rgba(255, 160, 100, 0.3);
  --oil-2: rgba(220, 80, 40, 0.6);
  --oil-3: rgba(120, 30, 10, 0.9);
}
body[data-skin="midnight"] {
  --accent: #e8eef8;
  --accent-dim: #6a7488;
  --accent-glow: rgba(200, 220, 255, 0.35);
  --pen-metal-1: #0c0e12;
  --pen-metal-2: #22262e;
  --pen-metal-3: #06070a;
  --oil-1: rgba(200, 210, 230, 0.2);
  --oil-2: rgba(80, 90, 110, 0.5);
  --oil-3: rgba(30, 35, 50, 0.85);
}
/* ═══ DEV — secret legendary OG skin ═══ */
body[data-skin="dev"] {
  --accent: #ffe566;
  --accent-dim: #ff9f1c;
  --accent-glow: rgba(255, 215, 80, 0.65);
  --pen-metal-1: #1a1420;
  --pen-metal-2: #3d2a55;
  --pen-metal-3: #0c0814;
  --oil-1: rgba(255, 255, 255, 0.45);
  --oil-2: rgba(255, 100, 200, 0.55);
  --oil-3: rgba(80, 40, 200, 0.9);
  --text: #fff8e7;
}

body[data-skin="dev"] .bg-vignette {
  background:
    radial-gradient(ellipse 55% 45% at 50% 28%, rgba(255, 200, 60, 0.12), transparent 55%),
    radial-gradient(ellipse 70% 60% at 50% 40%, transparent 30%, rgba(0, 0, 0, 0.7) 100%);
}

body[data-skin="dev"] .brand-icon {
  background: linear-gradient(145deg, #ff6b9d, #c44dff 40%, #5ce1ff 70%, #ffe566);
  background-size: 200% 200%;
  animation: legendary-shift 3s ease infinite;
  box-shadow:
    0 0 20px rgba(255, 107, 157, 0.5),
    0 0 40px rgba(255, 229, 102, 0.35);
  border-color: rgba(255, 229, 102, 0.5);
}

body[data-skin="dev"] .tagline {
  background: linear-gradient(90deg, #ff6b9d, #ffe566, #5ce1ff, #c44dff, #ff6b9d);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: legendary-shift 4s linear infinite;
  font-weight: 800;
}

body[data-skin="dev"] .total-value {
  background: linear-gradient(135deg, #ffe566, #ff6b9d 40%, #5ce1ff 70%, #c44dff);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: legendary-shift 3s ease infinite;
  text-shadow: none;
  filter: drop-shadow(0 0 18px rgba(255, 200, 80, 0.55));
}

body[data-skin="dev"] .xp-fill,
body[data-skin="dev"] .progress-bar,
body[data-skin="dev"] .goal-fill {
  background: linear-gradient(90deg, #ff6b9d, #ffe566, #5ce1ff, #c44dff);
  background-size: 300% 100%;
  animation: legendary-shift 2.5s linear infinite;
}

body[data-skin="dev"] .pen {
  filter:
    drop-shadow(0 0 12px rgba(255, 215, 80, 0.55))
    drop-shadow(0 0 28px rgba(196, 77, 255, 0.35))
    drop-shadow(0 18px 30px rgba(0, 0, 0, 0.55));
  animation: legendary-float 3.5s ease-in-out infinite;
}

body[data-skin="dev"] .pen::before {
  content: "★ LEGENDARY ★";
  position: absolute;
  top: -1.6rem;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.55rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: #ffe566;
  text-shadow:
    0 0 8px rgba(255, 215, 80, 0.9),
    0 0 18px rgba(255, 107, 157, 0.5);
  animation: legendary-pulse 1.6s ease-in-out infinite;
  z-index: 5;
  pointer-events: none;
}

body[data-skin="dev"] .pen::after {
  content: "";
  position: absolute;
  inset: -18px -22px -10px;
  border-radius: 28px;
  background: conic-gradient(
    from var(--legendary-angle, 0deg),
    #ff6b9d,
    #ffe566,
    #5ce1ff,
    #c44dff,
    #ff9f1c,
    #ff6b9d
  );
  opacity: 0.4;
  filter: blur(16px);
  z-index: -1;
  animation: legendary-aura 4s linear infinite;
  pointer-events: none;
}

body[data-skin="dev"] .pen-mouthpiece {
  background: linear-gradient(180deg, #ffd76a, #c9a227 40%, #8a7018);
  border-color: rgba(255, 230, 150, 0.55);
  box-shadow: 0 0 12px rgba(255, 215, 80, 0.4);
}

body[data-skin="dev"] .pen-mouthpiece::after {
  background: radial-gradient(circle at 40% 30%, #fff8d0, #3a3010);
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 6px rgba(255, 215, 80, 0.3);
}

body[data-skin="dev"] .pen-body {
  background:
    linear-gradient(
      125deg,
      transparent 30%,
      rgba(255, 255, 255, 0.35) 45%,
      transparent 60%
    ),
    linear-gradient(
      160deg,
      #2a1a3d 0%,
      #ff6b9d 18%,
      #ffe566 36%,
      #5ce1ff 54%,
      #c44dff 72%,
      #1a1028 100%
    );
  background-size: 200% 200%, 100% 100%;
  animation: chrome-shine 3.2s ease-in-out infinite;
  border: 1px solid rgba(255, 229, 102, 0.55);
  box-shadow:
    inset 3px 0 14px rgba(255, 255, 255, 0.25),
    inset -3px 0 14px rgba(0, 0, 0, 0.4),
    0 0 20px rgba(255, 107, 157, 0.25);
}

body[data-skin="dev"] .pen-window {
  border-color: rgba(255, 229, 102, 0.65);
  box-shadow:
    inset 0 0 12px rgba(0, 0, 0, 0.85),
    0 0 10px rgba(255, 215, 80, 0.35);
}

body[data-skin="dev"] .pen-oil {
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.55) 0%,
      rgba(255, 107, 157, 0.65) 25%,
      rgba(255, 229, 102, 0.7) 50%,
      rgba(92, 225, 255, 0.65) 75%,
      rgba(196, 77, 255, 0.85) 100%
    );
  background-size: 100% 200%;
  animation: oil-legendary 2.4s ease-in-out infinite;
  box-shadow:
    0 -6px 20px rgba(255, 107, 157, 0.45),
    0 0 16px rgba(255, 229, 102, 0.35);
}

body[data-skin="dev"] .pen.heating {
  animation: legendary-float 1.2s ease-in-out infinite;
}

body[data-skin="dev"] .pen.heating .pen-oil {
  filter: brightness(1.5) saturate(1.6);
  animation: oil-legendary 0.8s ease-in-out infinite, oil-boil 0.5s ease infinite;
}

body[data-skin="dev"] .pen.blinked {
  animation: pen-kick 450ms ease, legendary-float 3.5s ease-in-out infinite;
}

body[data-skin="dev"] .pen-brand {
  font-size: 0;
  position: relative;
  color: transparent;
}

body[data-skin="dev"] .pen-brand::after {
  content: "★ DEV ★";
  font-size: 0.58rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  background: linear-gradient(90deg, #ffe566, #fff, #5ce1ff, #ffe566);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: legendary-shift 2s linear infinite;
  text-shadow: none;
  filter: drop-shadow(0 0 4px rgba(255, 215, 80, 0.8));
}

body[data-skin="dev"] .pen-led.on {
  background: radial-gradient(circle at 35% 30%, #fff, #ffe566 45%, #ff6b9d);
  border-color: #ffe566;
  box-shadow:
    0 0 14px rgba(255, 229, 102, 0.9),
    0 0 32px rgba(255, 107, 157, 0.6),
    0 0 48px rgba(92, 225, 255, 0.35);
}

body[data-skin="dev"] .fire-btn {
  background:
    radial-gradient(circle at 40% 30%, rgba(255, 229, 102, 0.35), transparent 55%),
    radial-gradient(circle at 40% 35%, #3a2a18, #120c08 70%);
  border-color: rgba(255, 229, 102, 0.65);
  color: #ffe566;
  box-shadow:
    0 0 24px rgba(255, 215, 80, 0.35),
    0 8px 24px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

body[data-skin="dev"] .fire-btn.holding {
  box-shadow:
    0 0 40px rgba(255, 107, 157, 0.55),
    0 0 60px rgba(255, 229, 102, 0.35),
    inset 0 0 24px rgba(255, 229, 102, 0.15);
}

body[data-skin="dev"] .fire-ring {
  opacity: 0.98;
  filter: drop-shadow(0 0 8px rgba(255, 215, 80, 0.7));
  background: conic-gradient(
    from 0deg,
    #ff6b9d 0 calc(var(--progress, 0) * 0.33 * 1%),
    #ffe566 calc(var(--progress, 0) * 0.33 * 1%) calc(var(--progress, 0) * 0.66 * 1%),
    #5ce1ff calc(var(--progress, 0) * 0.66 * 1%) calc(var(--progress, 0) * 1%),
    transparent 0
  );
}

body[data-skin="dev"] .counter-panel {
  border-color: rgba(255, 229, 102, 0.3);
  background: linear-gradient(
    180deg,
    rgba(255, 107, 157, 0.1),
    rgba(255, 229, 102, 0.05),
    rgba(92, 225, 255, 0.04)
  );
  box-shadow:
    0 0 40px rgba(255, 215, 80, 0.12),
    var(--shadow);
}

body[data-skin="dev"] .badge.unlocked {
  border-color: rgba(255, 229, 102, 0.45);
  background: linear-gradient(145deg, rgba(255, 107, 157, 0.12), rgba(255, 229, 102, 0.1));
}

body[data-skin="dev"] .combo-banner {
  background: linear-gradient(90deg, rgba(255, 107, 157, 0.3), rgba(255, 229, 102, 0.25), rgba(92, 225, 255, 0.2));
  border-color: rgba(255, 229, 102, 0.55);
  color: #ffe566;
  text-shadow: 0 0 12px rgba(255, 215, 80, 0.6);
}

@keyframes legendary-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes legendary-aura {
  to {
    --legendary-angle: 360deg;
  }
}

@keyframes legendary-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

@keyframes legendary-pulse {
  0%,
  100% {
    opacity: 0.85;
    letter-spacing: 0.18em;
  }
  50% {
    opacity: 1;
    letter-spacing: 0.24em;
  }
}

@keyframes chrome-shine {
  0%,
  100% {
    background-position: 0% 50%, 0 0;
  }
  50% {
    background-position: 100% 50%, 0 0;
  }
}

@keyframes oil-legendary {
  0%,
  100% {
    background-position: 0% 0%;
    filter: hue-rotate(0deg);
  }
  50% {
    background-position: 0% 100%;
    filter: hue-rotate(25deg);
  }
}

/* conic-gradient angle property support fallback via transform on ::after */
@property --legendary-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

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

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.shaking {
  animation: shake 420ms ease;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: none;
  background: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.bg-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 40%, transparent 30%, rgba(0, 0, 0, 0.65) 100%);
}

.heat-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  background: radial-gradient(ellipse 50% 45% at 50% 35%, var(--accent-glow), transparent 70%);
  transition: opacity 100ms linear;
  mix-blend-mode: screen;
}

.flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  background: var(--accent);
  opacity: 0;
}

.flash.pop {
  animation: flash-pop 500ms ease-out;
}

.app {
  position: relative;
  z-index: 3;
  max-width: 480px;
  margin: 0 auto;
  padding: 1.1rem 1.1rem 3rem;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 2.7rem;
  height: 2.7rem;
  font-size: 1.3rem;
  border-radius: 14px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 25%, transparent), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border);
  box-shadow: 0 0 24px var(--accent-glow);
  flex-shrink: 0;
}

.header h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.tagline {
  margin: 0.05rem 0 0;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-actions {
  display: flex;
  gap: 0.35rem;
  flex-shrink: 0;
}

/* XP */
.xp-bar-wrap {
  margin-bottom: 0.85rem;
  padding: 0.65rem 0.85rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
}

.xp-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
}

#xp-label {
  color: var(--accent);
  font-family: var(--mono);
}

.xp-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.xp-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  box-shadow: 0 0 12px var(--accent-glow);
  transition: width 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Combo */
.combo-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 107, 74, 0.2), rgba(255, 200, 87, 0.15));
  border: 1px solid rgba(255, 200, 87, 0.35);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--amber);
  animation: combo-pulse 1s ease infinite;
}

.combo-banner[hidden] {
  display: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  transition:
    transform var(--transition),
    background var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.btn:active {
  transform: scale(0.97);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-ghost {
  width: 2.45rem;
  height: 2.45rem;
  padding: 0;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 12px;
  font-size: 1rem;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.btn-ghost[aria-pressed="false"] {
  opacity: 0.65;
}

.btn-sm {
  width: auto;
  height: auto;
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  border-radius: 999px;
}

.btn-secondary {
  flex: 1;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--accent);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-subtle {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-subtle:hover {
  border-color: rgba(255, 107, 74, 0.4);
  color: var(--heat);
  background: rgba(255, 107, 74, 0.08);
}

kbd {
  font-family: var(--mono);
  font-size: 0.72em;
  font-weight: 500;
  padding: 0.15em 0.45em;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
}

/* Pen stage */
.pen-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.25rem;
  position: relative;
}

.timer-display {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent-glow);
  letter-spacing: -0.04em;
  height: 2.6rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 200ms ease, transform 200ms ease;
  margin-bottom: 0.35rem;
}

.timer-display.show {
  opacity: 1;
  transform: translateY(0);
}

.timer-display.critical {
  color: var(--heat);
  text-shadow: 0 0 30px rgba(255, 107, 74, 0.55);
  animation: timer-pulse 0.5s ease infinite;
}

.pen {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 96px;
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.55));
  transition: transform 200ms ease;
  position: relative;
}

.pen.heating {
  transform: scale(1.03);
}

.pen.blinked {
  animation: pen-kick 450ms ease;
}

.pen-mouthpiece {
  width: 38px;
  height: 28px;
  background: linear-gradient(180deg, #3a3f3a, #1e221e);
  border-radius: 8px 8px 4px 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: none;
  position: relative;
  z-index: 2;
}

.pen-mouthpiece::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 10px;
  border-radius: 4px;
  background: #0d100d;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.6);
}

.pen-body {
  width: 74px;
  height: 210px;
  background: linear-gradient(
    90deg,
    var(--pen-metal-1) 0%,
    var(--pen-metal-2) 45%,
    var(--pen-metal-3) 100%
  );
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 0 12px;
  box-shadow:
    inset 4px 0 12px rgba(255, 255, 255, 0.06),
    inset -4px 0 12px rgba(0, 0, 0, 0.35);
  z-index: 1;
}

.pen-window {
  width: 28px;
  height: 115px;
  border-radius: 14px;
  background: #060806;
  border: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.8);
  /* secret unlock target — no click affordance */
  cursor: default;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  touch-action: manipulation;
}

.pen-window:focus,
.pen-window:focus-visible,
.pen-oil:focus,
.pen-oil:focus-visible {
  outline: none;
}

.pen-oil {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 72%;
  background: linear-gradient(180deg, var(--oil-1) 0%, var(--oil-2) 30%, var(--oil-3) 100%);
  transition: height 600ms ease, filter 200ms ease;
  box-shadow: 0 -4px 16px var(--accent-glow);
}

.pen.heating .pen-oil {
  filter: brightness(1.4) saturate(1.4);
  animation: oil-boil 0.6s ease infinite;
}

.pen-bubbles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
}

.pen.heating .pen-bubbles {
  opacity: 1;
}

.pen-bubbles span {
  position: absolute;
  bottom: 10%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  animation: bubble-up 1.2s ease-in infinite;
}

.pen-brand {
  margin-top: auto;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.28);
}

.pen-base {
  width: 78px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 10px 0 0;
  z-index: 2;
}

.pen-led {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #1a201a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
  transition:
    background 80ms ease,
    box-shadow 80ms ease,
    transform 80ms ease;
}

.pen-led.on {
  background: radial-gradient(circle at 35% 30%, #fff, var(--accent));
  border-color: var(--accent);
  box-shadow:
    0 0 12px var(--accent-glow),
    0 0 28px var(--accent-glow);
  transform: scale(1.15);
}

.pen-led.amber {
  background: radial-gradient(circle at 35% 30%, #fff, var(--amber));
  border-color: var(--amber);
  box-shadow:
    0 0 12px var(--amber-glow),
    0 0 28px var(--amber-glow);
}

.heat-waves {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 40px;
  pointer-events: none;
  opacity: 0;
}

.pen.heating .heat-waves {
  opacity: 1;
}

.heat-waves::before,
.heat-waves::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 20px;
  height: 30px;
  border: 2px solid var(--accent);
  border-color: var(--accent) transparent transparent;
  border-radius: 50%;
  opacity: 0;
  animation: heat-rise 1s ease-out infinite;
}

.heat-waves::after {
  animation-delay: 0.4s;
  width: 28px;
}

.fire-btn {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, color-mix(in srgb, var(--accent) 15%, #2a322a), #0e120e 70%);
  border: 2px solid color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--accent);
  font-weight: 800;
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.fire-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

.fire-btn:active,
.fire-btn.holding {
  transform: scale(0.96);
  border-color: var(--accent);
  box-shadow:
    0 0 36px var(--accent-glow),
    inset 0 0 24px color-mix(in srgb, var(--accent) 15%, transparent);
}

.fire-ring {
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: conic-gradient(
    var(--accent) calc(var(--progress, 0) * 1%),
    transparent 0
  );
  opacity: 0.95;
  mask: radial-gradient(farthest-side, transparent calc(100% - 5px), #000 calc(100% - 4px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 5px), #000 calc(100% - 4px));
  pointer-events: none;
  filter: drop-shadow(0 0 6px var(--accent-glow));
}

.fire-core {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.1;
}

.fire-label {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.fire-sub {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  opacity: 0.7;
  margin-top: 0.15rem;
}

.phase-pills {
  display: flex;
  gap: 0.4rem;
  margin-top: 1rem;
  opacity: 0;
  transition: opacity 200ms ease;
}

.phase-pills.show {
  opacity: 1;
}

.phase-pills span {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 200ms ease;
}

.phase-pills span.active {
  color: #0a0c0a;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

.hint {
  margin: 0.9rem 0 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  max-width: 300px;
  font-weight: 500;
}

.hint strong {
  color: var(--accent);
}

.hint.success {
  color: var(--accent);
}

/* Counter */
.counter-panel {
  text-align: center;
  padding: 1.25rem 1.15rem 1.1rem;
  margin-bottom: 0.9rem;
  border-radius: var(--radius);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--accent) 8%, transparent),
    rgba(255, 255, 255, 0.02)
  );
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.total-value {
  margin: 0.2rem 0 0.55rem;
  font-family: var(--mono);
  font-size: clamp(3.75rem, 18vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 0 40px var(--accent-glow);
  transition: transform 200ms ease;
}

.total-value.pop {
  transform: scale(1.1);
}

.progress-wrap {
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  margin: 0 auto 0.85rem;
  max-width: 220px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  box-shadow: 0 0 10px var(--accent-glow);
  transition: width 50ms linear;
}

.goal-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.55rem;
  margin: 0 auto 0.65rem;
  max-width: 280px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.goal-track {
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.goal-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--purple), var(--accent));
  transition: width 400ms ease;
}

.goal-text {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text);
}

.session-meta {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.55rem;
  margin-bottom: 0.9rem;
}

.stat {
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.stat-value {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

/* Quick row */
.quick-row {
  display: flex;
  gap: 0.55rem;
  margin-bottom: 1.1rem;
}

/* Sections */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.section-head h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.section-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Badges */
.achievements {
  padding: 1rem 1.05rem 1.1rem;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  margin-bottom: 0.9rem;
}

.badge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.badge {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.4rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.15;
  transition: all 250ms ease;
  cursor: default;
}

.badge .emoji {
  font-size: 1.25rem;
  filter: grayscale(1);
  opacity: 0.4;
  transition: filter 250ms ease, opacity 250ms ease, transform 250ms ease;
}

.badge.unlocked {
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--text);
}

.badge.unlocked .emoji {
  filter: none;
  opacity: 1;
}

.badge.just-unlocked {
  animation: badge-pop 600ms ease;
}

.badge.just-unlocked .emoji {
  transform: scale(1.2);
}

/* Skins */
.skins-panel {
  padding: 1rem 1.05rem 1.1rem;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  margin-bottom: 0.9rem;
  animation: slide-in 200ms ease;
}

.skins-panel[hidden] {
  display: none;
}

.skin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

.skin-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 0.75rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  text-align: left;
  transition: border-color var(--transition), background var(--transition);
}

.skin-card:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

.skin-card.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.skin-card:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.skin-swatch {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.skin-info {
  min-width: 0;
}

.skin-name {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
}

.skin-req {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* History */
.history {
  padding: 1rem 1.05rem 1.1rem;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  margin-bottom: 1.15rem;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.history-header h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.history-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.7rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.88rem;
  animation: slide-in 200ms ease;
}

.history-empty {
  justify-content: center !important;
  color: var(--text-muted);
  background: transparent !important;
  padding: 1rem 0.5rem !important;
  text-align: center;
}

.history-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--accent);
}

.history-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Danger zone */
.danger-zone {
  padding: 1rem 1.05rem 1.15rem;
  border-radius: var(--radius);
  background: rgba(255, 80, 60, 0.05);
  border: 1px solid rgba(255, 107, 74, 0.28);
  margin-bottom: 1.15rem;
}

.danger-zone .section-head h2 {
  color: var(--heat);
}

.danger-copy {
  margin: 0 0 0.9rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.danger-copy strong {
  color: var(--heat);
}

.danger-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.danger-actions .btn {
  flex: 1;
  min-width: 120px;
}

.btn-danger {
  background: rgba(255, 107, 74, 0.14);
  border: 1px solid rgba(255, 107, 74, 0.45);
  color: #ff8f78;
  font-weight: 700;
}

.btn-danger:hover {
  background: rgba(255, 107, 74, 0.28);
  box-shadow: 0 0 24px rgba(255, 107, 74, 0.25);
  color: #ffc4b8;
}

.btn-danger:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-danger-solid {
  background: linear-gradient(180deg, #ff6b4a, #d9442a);
  border: 1px solid #ff8a70;
  color: #1a0806;
  font-weight: 800;
}

.btn-danger-solid:hover:not(:disabled) {
  filter: brightness(1.08);
  box-shadow: 0 0 28px rgba(255, 107, 74, 0.4);
}

.btn-danger-solid:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: none;
}

.modal-card-danger {
  border-color: rgba(255, 107, 74, 0.45) !important;
  box-shadow: 0 0 60px rgba(255, 107, 74, 0.2), var(--shadow) !important;
  text-align: left;
}

.modal-card-danger h2 {
  text-align: center;
  color: #ffb4a4;
}

.modal-card-danger .modal-emoji {
  text-align: center;
}

.reset-modal-body {
  margin-bottom: 1.15rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.reset-modal-body p {
  margin: 0 0 0.75rem;
}

.reset-modal-body ul {
  margin: 0 0 0.9rem;
  padding-left: 1.15rem;
  color: #ffcfc4;
}

.reset-modal-body li {
  margin-bottom: 0.25rem;
}

.reset-warning-box {
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  background: rgba(255, 107, 74, 0.12);
  border: 1px solid rgba(255, 107, 74, 0.35);
  color: #ffb8a8;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.9rem;
}

.reset-confirm-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.reset-confirm-label code {
  font-family: var(--mono);
  color: var(--heat);
  font-size: 0.9em;
}

.reset-confirm-input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 107, 74, 0.35);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  outline: none;
  margin-bottom: 0.25rem;
}

.reset-confirm-input:focus {
  border-color: var(--heat);
  box-shadow: 0 0 0 3px rgba(255, 107, 74, 0.2);
}

.reset-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.reset-modal-actions .btn {
  width: 100%;
}

.reset-step-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.reset-step-dots span {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.reset-step-dots span.active {
  background: var(--heat);
  box-shadow: 0 0 8px rgba(255, 107, 74, 0.5);
}

.reset-step-dots span.done {
  background: rgba(255, 107, 74, 0.55);
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.footer p {
  margin: 0 0 0.35rem;
}

.disclaimer {
  opacity: 0.7;
  font-size: 0.72rem;
}

/* FX */
.fx-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 25;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform, opacity;
}

.puff {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 40%, white), transparent 70%);
  filter: blur(6px);
  animation: puff-up 1.5s ease-out forwards;
}

.confetti {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  animation: confetti-fall 1.2s ease-out forwards;
}

.float-text {
  position: fixed;
  left: 50%;
  top: 32%;
  transform: translateX(-50%);
  z-index: 30;
  font-weight: 900;
  font-size: 1.6rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-shadow: 0 0 24px var(--accent-glow);
  pointer-events: none;
  opacity: 0;
}

.float-text.show {
  animation: float-up 1.1s ease-out forwards;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 50;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: #1a2218;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  box-shadow: var(--shadow);
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 250ms cubic-bezier(0.2, 0.8, 0.2, 1);
  max-width: 90vw;
  text-align: center;
}

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

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  animation: fade-in 200ms ease;
}

.modal[hidden] {
  display: none;
}

.modal-card {
  width: min(340px, 100%);
  padding: 1.75rem 1.5rem 1.35rem;
  border-radius: 22px;
  background: linear-gradient(180deg, #1a2218, #101510);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  box-shadow: 0 0 60px var(--accent-glow), var(--shadow);
  text-align: center;
  animation: modal-pop 350ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.modal-emoji {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 0 16px var(--accent-glow));
}

.modal-card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.4rem;
  font-weight: 800;
}

.modal-card p {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.modal-btn {
  width: 100%;
}

/* Animations */
@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes puff-up {
  0% {
    opacity: 0.85;
    transform: translateY(0) scale(0.5);
  }
  100% {
    opacity: 0;
    transform: translateY(-140px) scale(3.8);
  }
}

@keyframes confetti-fall {
  0% {
    opacity: 1;
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(var(--dx), var(--dy)) rotate(var(--rot)) scale(0.4);
  }
}

@keyframes pen-kick {
  0%,
  100% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.06) rotate(-1.5deg);
  }
  65% {
    transform: scale(0.97) rotate(1deg);
  }
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-4px);
  }
  40% {
    transform: translateX(4px);
  }
  60% {
    transform: translateX(-3px);
  }
  80% {
    transform: translateX(2px);
  }
}

@keyframes flash-pop {
  0% {
    opacity: 0.35;
  }
  100% {
    opacity: 0;
  }
}

@keyframes combo-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.03);
  }
}

@keyframes timer-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes oil-boil {
  0%,
  100% {
    transform: scaleY(1);
  }
  50% {
    transform: scaleY(1.03);
  }
}

@keyframes bubble-up {
  0% {
    transform: translateY(0);
    opacity: 0.6;
  }
  100% {
    transform: translateY(-80px);
    opacity: 0;
  }
}

@keyframes heat-rise {
  0% {
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
  }
  40% {
    opacity: 0.5;
  }
  100% {
    transform: translateX(-50%) translateY(-25px);
    opacity: 0;
  }
}

@keyframes badge-pop {
  0% {
    transform: scale(1);
  }
  40% {
    transform: scale(1.12);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes float-up {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px) scale(0.8);
  }
  15% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1.05);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(-50px) scale(1);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modal-pop {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@media (max-width: 420px) {
  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .badge-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer kbd {
    display: none;
  }

  .header-actions .btn-ghost:nth-child(3) {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}