/**
 * Interval Blitz - Dedicated Relative Pitch Ear Training Arcade Stylesheet
 * High-DPI Circular Tech Scope, Ergonomic 3x4 Mobile Matrix Launchpad, Zero Emojis.
 */

.interval-blitz-arena {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 10;
}

/* Center Scope Card */
.blitz-center-card {
  width: 100%;
  background: var(--eb-card-bg);
  border: 1px solid var(--eb-border);
  border-radius: var(--eb-radius-lg);
  box-shadow: var(--eb-card-shadow);
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  backdrop-filter: blur(16px);
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

/* Stage Header with Match Timer */
.blitz-stage-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.match-timer-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 5px 14px;
  border-radius: var(--eb-radius-pill);
  font-family: var(--eb-font-mono);
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  transition: all 0.2s ease;
}
.match-timer-pill.warning {
  border-color: var(--eb-coral);
  color: var(--eb-coral);
  box-shadow: 0 0 14px rgba(255, 94, 87, 0.4);
  animation: pulseTimerWarn 1s infinite alternate ease-in-out;
}
@keyframes pulseTimerWarn {
  0% { transform: scale(1); }
  100% { transform: scale(1.04); }
}

/* Circular Tech Scope Visualizer */
.scope-outer-wrapper {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 6px auto 14px;
}
#blitzScopeCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.scope-svg-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  overflow: visible;
  pointer-events: none;
}
.timer-track-circle {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 7;
}
.timer-progress-circle {
  fill: none;
  stroke: var(--eb-cyan);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 690;
  stroke-dashoffset: 0;
  transition: stroke 0.2s ease;
}

/* Big Central Play/Replay Button */
.scope-replay-center-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.25) 0%, rgba(20, 16, 44, 0.95) 85%);
  border: 2px solid var(--eb-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4), inset 0 0 12px rgba(0, 240, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  z-index: 10;
  touch-action: manipulation;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.scope-replay-center-btn:active {
  transform: translate(-50%, -50%) scale(0.92);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

.scope-countdown-digits {
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--eb-font-mono);
  font-size: 13px;
  font-weight: 800;
  color: var(--eb-cyan);
  background: rgba(0, 0, 0, 0.65);
  padding: 2px 8px;
  border-radius: var(--eb-radius-pill);
  border: 1px solid rgba(0, 240, 255, 0.3);
  z-index: 12;
  white-space: nowrap;
}

/* Presentation Mode Pill & Status */
.presentation-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: var(--eb-radius-pill);
  background: rgba(168, 85, 247, 0.18);
  border: 1px solid var(--eb-purple);
  font-family: var(--eb-font-heading);
  font-size: 12px;
  font-weight: 800;
  color: #e9d5ff;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.blitz-status-text {
  font-size: 14px;
  color: var(--eb-text-dim);
  text-align: center;
  min-height: 22px;
}

/* ========================================================================= */
/* ERGONOMIC 3x4 LAUNCHPAD MATRIX (Mobile-First Touch Keypad)                */
/* ========================================================================= */
.interval-launchpad-card {
  width: 100%;
  background: var(--eb-card-bg);
  border: 1px solid var(--eb-border);
  border-radius: var(--eb-radius-lg);
  padding: 16px 18px 20px;
  box-shadow: var(--eb-card-shadow);
  backdrop-filter: blur(14px);
  margin-bottom: 24px;
}
.launchpad-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.launchpad-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--eb-font-heading);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
  text-transform: uppercase;
}

/* Interval Launchpad Grid (Original Vibrant 4x3 Arcade Grid) */
.interval-row,
.matrix-keypad-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: 100%;
}

.int-btn,
.matrix-btn {
  position: relative;
  min-width: 0;
  min-height: 56px;
  background: rgba(255, 255, 255, 0.05);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--eb-radius-md, 10px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.12);
  padding: 8px 4px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
  transition: transform 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

/* Individual Per-Interval Vibrant Neon Accents */
.int-btn[data-semi="1"],  .matrix-btn[data-semi="1"]  { --accent: #00f0ff; }
.int-btn[data-semi="2"],  .matrix-btn[data-semi="2"]  { --accent: #38bdf8; }
.int-btn[data-semi="3"],  .matrix-btn[data-semi="3"]  { --accent: #00ff88; }
.int-btn[data-semi="4"],  .matrix-btn[data-semi="4"]  { --accent: #10b981; }
.int-btn[data-semi="5"],  .matrix-btn[data-semi="5"]  { --accent: #a3e635; }
.int-btn[data-semi="6"],  .matrix-btn[data-semi="6"]  { --accent: #ffbe0b; }
.int-btn[data-semi="7"],  .matrix-btn[data-semi="7"]  { --accent: #fb923c; }
.int-btn[data-semi="8"],  .matrix-btn[data-semi="8"]  { --accent: #ff5e57; }
.int-btn[data-semi="9"],  .matrix-btn[data-semi="9"]  { --accent: #ff007f; }
.int-btn[data-semi="10"], .matrix-btn[data-semi="10"] { --accent: #ec4899; }
.int-btn[data-semi="11"], .matrix-btn[data-semi="11"] { --accent: #d946ef; }
.int-btn[data-semi="12"], .matrix-btn[data-semi="12"] { --accent: #a855f7; }

.int-btn:hover,
.matrix-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent);
  background: rgba(255, 255, 255, 0.09);
}

.int-btn:active,
.int-btn.pressed,
.matrix-btn:active,
.matrix-btn.pressed {
  transform: scale(0.94);
  filter: brightness(1.3);
}

.int-btn .int-abbr,
.matrix-btn .matrix-btn-abbr {
  font-family: var(--eb-font-heading);
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.2px;
  text-shadow: 0 0 10px var(--accent);
  color: var(--accent);
  pointer-events: none;
}

.int-btn .int-name,
.matrix-btn .matrix-btn-title {
  font-size: 9.5px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.1;
  text-transform: uppercase;
  text-align: center;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.int-btn .int-key,
.matrix-btn .matrix-btn-key {
  position: absolute;
  top: 4px;
  right: 6px;
  font-family: var(--eb-font-mono, monospace);
  font-size: 9px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  padding: 1px 4px;
  pointer-events: none;
  line-height: 1;
}

/* Correct / Wrong States */
.int-btn.correct,
.matrix-btn.correct {
  background: rgba(0, 255, 136, 0.35) !important;
  border-color: #00ff88 !important;
  box-shadow: 0 0 25px rgba(0, 255, 136, 0.9) !important;
  transform: scale(1.05);
}

.int-btn.wrong,
.matrix-btn.wrong {
  background: rgba(255, 62, 62, 0.4) !important;
  border-color: #ff3e3e !important;
  box-shadow: 0 0 25px rgba(255, 62, 62, 0.9) !important;
  animation: padShake 0.3s ease;
}

@keyframes padShake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

@media (max-width: 600px) {
  .interval-blitz-arena { padding: 0 8px; }
  .arcade-cockpit-bar { margin: 2px 0 6px; padding: 4px 8px; }
  .blitz-center-card { padding: 10px 14px 12px; margin-bottom: 8px; }
  .scope-outer-wrapper { width: 170px; height: 170px; margin: 4px auto 8px; }
  .scope-replay-center-btn { width: 64px; height: 64px; }
  .interval-launchpad-card { padding: 10px 12px 14px; margin-bottom: 16px; }
  .interval-row,
  .matrix-keypad-grid { gap: 6px; }
  .int-btn,
  .matrix-btn { min-height: 48px; padding: 6px 2px 4px; border-radius: 8px; }
  .int-btn .int-abbr,
  .matrix-btn .matrix-btn-abbr { font-size: 16px; }
  .int-btn .int-name,
  .matrix-btn .matrix-btn-title { font-size: 8px; letter-spacing: -0.2px; }
  .int-btn .int-key,
  .matrix-btn .matrix-btn-key { display: none; }
}