/* ============ FOUNDATION ============ */
* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

:root {
  --bg-top: #fdf4e3;
  --bg-bot: #e8f3fb;
  --ink: #3a3245;
  --ink-soft: #6b5f7a;
  --panel: rgba(255, 255, 255, 0.7);
  --panel-border: rgba(255, 255, 255, 0.9);
  --shadow-soft: 0 6px 18px rgba(120, 100, 140, 0.12);
  --shadow-pop:  0 10px 28px rgba(120, 100, 140, 0.22);

  --c-red:    #ef6b6b;
  --c-orange: #f29849;
  --c-yellow: #f3c948;
  --c-green:  #6dc57d;
  --c-blue:   #4ea8e3;
  --c-indigo: #7a6fd0;
  --c-violet: #b07dc9;
  --c-drum:   #8e8794;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: manipulation;
  font-family: -apple-system, BlinkMacSystemFont, "Avenir Next", "Avenir", "Nunito", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 800px at 20% 0%, #ffeac1 0%, transparent 60%),
    radial-gradient(1000px 700px at 100% 100%, #cfe6f7 0%, transparent 65%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bot) 100%);
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* ============ START OVERLAY ============ */
#start-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, #fff4d6 0%, #d6ecfa 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.5s ease;
  padding: 24px;
}
#start-screen.hidden {
  opacity: 0;
  pointer-events: none;
}
#start-screen h1 {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  margin: 0 0 12px;
  background: linear-gradient(90deg,
    var(--c-red), var(--c-orange), var(--c-yellow),
    var(--c-green), var(--c-blue), var(--c-indigo), var(--c-violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
  text-align: center;
}
#start-screen p {
  font-size: clamp(16px, 2.2vw, 20px);
  color: var(--ink-soft);
  margin: 4px 0 28px;
  text-align: center;
}
#player-name {
  font-weight: 700;
  color: var(--c-indigo);
}
#start-btn {
  background: white;
  border: 4px solid transparent;
  background-clip: padding-box;
  color: var(--ink);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  padding: 18px 40px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--shadow-pop);
  position: relative;
  transition: transform 0.15s ease;
}
#start-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 999px;
  padding: 4px;
  background: linear-gradient(90deg,
    var(--c-red), var(--c-orange), var(--c-yellow),
    var(--c-green), var(--c-blue), var(--c-indigo), var(--c-violet));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
#start-btn:active { transform: scale(0.96); }

.bear-big { width: clamp(140px, 22vw, 200px); height: auto; margin-bottom: 8px; }

/* ============ MAIN APP ============ */
#app {
  width: 100%;
  max-width: 1000px;
  height: 100%;
  max-height: 900px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 12px;
  padding: 16px;
  min-height: 0;
}

/* ---- Header / Bumble ---- */
header {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 10px 18px 10px 10px;
  box-shadow: var(--shadow-soft);
}
.bear { width: 64px; height: 64px; flex-shrink: 0; }
.bear-wrap {
  position: relative;
  animation: bob 4s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}
.speech {
  flex: 1;
  position: relative;
  background: white;
  border-radius: 16px;
  padding: 12px 16px;
  box-shadow: 0 2px 6px rgba(120, 100, 140, 0.08);
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 600;
  color: var(--ink);
  transition: opacity 0.3s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
  min-width: 0;
}
.speech::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-right-color: white;
}
.speech.fade { opacity: 0.3; }

/* ---- Pickers ---- */
.pickers {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 12px 16px;
  box-shadow: var(--shadow-soft);
}
.picker-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.picker-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0 6px;
  min-width: 50px;
}
.picker-label-spacer { margin-left: 14px; }

.picker-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.picker-btn {
  min-width: 64px;
  min-height: 64px;
  width: 64px;
  height: 64px;
  background: white;
  border: 2px solid rgba(122, 111, 208, 0.15);
  border-radius: 18px;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(120, 100, 140, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  padding: 0;
  font-family: inherit;
  color: var(--ink);
}
.picker-btn:active { transform: scale(0.92); }
.picker-btn.active {
  border-color: var(--c-indigo);
  background: linear-gradient(135deg, #f5eefb 0%, #e7dcf7 100%);
  box-shadow: 0 4px 12px rgba(122, 111, 208, 0.32);
  transform: scale(1.06);
}

/* ---- Grid ---- */
.grid-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  padding: 14px;
  box-shadow: var(--shadow-soft);
  min-height: 0;
}
.grid {
  display: grid;
  grid-template-columns: 30px repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 8px;
  width: 100%;
  height: 100%;
  max-width: 760px;
  max-height: 560px;
  aspect-ratio: 760 / 560;
  position: relative;
}
.drum-label {
  grid-column: 1;
  grid-row: 8;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  font-size: 22px;
  pointer-events: none;
  padding-right: 2px;
}

.cell {
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.55);
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.8),
    0 1px 2px rgba(120, 100, 140, 0.06);
  cursor: pointer;
  transition:
    transform 0.15s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.25s ease,
    box-shadow 0.25s ease;
  position: relative;
}
.cell:active { transform: scale(0.92); }
.cell.on {
  background: var(--cell-color);
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.5),
    inset 0 -3px 6px rgba(0, 0, 0, 0.08),
    0 4px 10px var(--cell-glow);
  border-color: rgba(255, 255, 255, 0.6);
}
.cell.flash {
  transform: scale(1.12);
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.7),
    0 0 0 4px rgba(255, 255, 255, 0.8),
    0 6px 18px var(--cell-glow);
}
.cell.playhead-dim::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

/* Row colors */
.row-0 { --cell-color: var(--c-red);    --cell-glow: rgba(239, 107, 107, 0.5); }
.row-1 { --cell-color: var(--c-orange); --cell-glow: rgba(242, 152, 73, 0.5); }
.row-2 { --cell-color: var(--c-yellow); --cell-glow: rgba(243, 201, 72, 0.5); }
.row-3 { --cell-color: var(--c-green);  --cell-glow: rgba(109, 197, 125, 0.5); }
.row-4 { --cell-color: var(--c-blue);   --cell-glow: rgba(78, 168, 227, 0.5); }
.row-5 { --cell-color: var(--c-indigo); --cell-glow: rgba(122, 111, 208, 0.5); }
.row-6 { --cell-color: var(--c-violet); --cell-glow: rgba(176, 125, 201, 0.5); }
.row-7 { --cell-color: var(--c-drum);   --cell-glow: rgba(142, 135, 148, 0.5); }

.cell.drum-cell:not(.on) {
  background: rgba(180, 172, 188, 0.32);
  border-color: rgba(180, 172, 188, 0.55);
}

/* ---- Controls ---- */
.controls {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 12px 18px;
  box-shadow: var(--shadow-soft);
}
.tempo {
  display: flex;
  gap: 8px;
  align-items: center;
}
.tempo-btn {
  border: 2px solid rgba(122, 111, 208, 0.2);
  background: white;
  border-radius: 14px;
  padding: 8px 12px;
  font-size: 22px;
  cursor: pointer;
  transition: all 0.15s ease;
  min-width: 50px;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
}
.tempo-btn.active {
  background: var(--c-indigo);
  border-color: var(--c-indigo);
  transform: scale(1.05);
  box-shadow: 0 4px 10px rgba(122, 111, 208, 0.35);
}
.tempo-btn:active { transform: scale(0.95); }

.play-btn {
  width: clamp(70px, 9vw, 84px);
  height: clamp(70px, 9vw, 84px);
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #ffd76b 0%, #f29849 100%);
  box-shadow:
    0 6px 16px rgba(242, 152, 73, 0.5),
    inset 0 2px 4px rgba(255, 255, 255, 0.5),
    inset 0 -3px 6px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  color: white;
  margin: 0 auto;
}
.play-btn:active { transform: scale(0.94); }
.play-btn.playing {
  background: linear-gradient(135deg, #93d3ed 0%, #4ea8e3 100%);
  box-shadow:
    0 6px 16px rgba(78, 168, 227, 0.5),
    inset 0 2px 4px rgba(255, 255, 255, 0.5),
    inset 0 -3px 6px rgba(0, 0, 0, 0.1);
}
.play-btn svg {
  width: 40%;
  height: 40%;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.15));
}

.right-group {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}
.icon-btn {
  background: white;
  border: 2px solid rgba(122, 111, 208, 0.15);
  border-radius: 14px;
  padding: 10px 14px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 50px;
  transition: all 0.15s ease;
  font-family: inherit;
}
.icon-btn:active { transform: scale(0.95); }
.icon-btn svg { width: 22px; height: 22px; }

/* ---- Nav bar ---- */
.nav-bar {
  display: flex;
  gap: 12px;
  margin-left: auto;
}
.nav-bar.hidden { display: none; }
.nav-btn {
  width: 64px;
  height: 64px;
  background: white;
  border: 2px solid rgba(122, 111, 208, 0.15);
  border-radius: 50%;
  font-size: 26px;
  color: var(--ink);
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  font-family: inherit;
}
.nav-btn:active { transform: scale(0.9); }

/* ---- Start-screen back button ---- */
.start-secondary {
  background: rgba(255, 255, 255, 0.7);
  border: 2px solid rgba(122, 111, 208, 0.2);
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 999px;
  cursor: pointer;
  margin-top: 16px;
  transition: transform 0.15s ease;
  -webkit-tap-highlight-color: transparent;
  font-family: inherit;
}
.start-secondary:active { transform: scale(0.96); }

/* ---- Confirm modals ---- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(58, 50, 69, 0.35);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 24px;
}
.modal.show { display: flex; }
.modal-card {
  background: white;
  border-radius: 24px;
  padding: 28px;
  max-width: 360px;
  width: 100%;
  box-shadow: var(--shadow-pop);
  text-align: center;
}
.modal-icon { font-size: 48px; }
.modal-card h2 {
  margin: 8px 0 6px;
  font-size: 22px;
  color: var(--ink);
}
.modal-card p {
  margin: 0 0 20px;
  color: var(--ink-soft);
  font-size: 16px;
}
.modal-btns {
  display: flex;
  gap: 10px;
}
.modal-btns button {
  flex: 1;
  border: none;
  border-radius: 14px;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  min-height: 52px;
  font-family: inherit;
}
.modal-btns .confirm {
  background: linear-gradient(135deg, #93d3ed, #4ea8e3);
  color: white;
}
.modal-btns .cancel {
  background: #f3eef5;
  color: var(--ink);
}
.modal-btns button:active { transform: scale(0.96); }

/* ---- Sparkle effect ---- */
.sparkle {
  position: absolute;
  pointer-events: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: white;
  opacity: 0.9;
  animation: sparkle-out 0.7s ease-out forwards;
}
@keyframes sparkle-out {
  0%   { transform: scale(0) translate(0, 0); opacity: 1; }
  100% { transform: scale(1) translate(var(--dx), var(--dy)); opacity: 0; }
}

/* Compact mode for short screens */
@media (max-height: 700px) {
  #app { padding: 10px; gap: 8px; }
  .bear { width: 52px; height: 52px; }
  .picker-btn { width: 60px; height: 60px; min-width: 60px; min-height: 60px; font-size: 26px; }
  .pickers { padding: 8px 12px; }
}

/* Narrow phones — let pickers stack gracefully */
@media (max-width: 520px) {
  .picker-label-spacer { margin-left: 0; }
  .picker-strip { gap: 8px; }
  .grid { grid-template-columns: 26px repeat(8, 1fr); gap: 6px; }
  .controls { padding: 10px 12px; gap: 10px; }
  .icon-btn span { display: none; }
}