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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #1a1d2e 0%, #2a2d3e 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 1.25rem 0 1.75rem;
  color: white;
}

.back-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  color: rgba(232, 234, 242, 0.75);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.back-link:hover {
  color: #ffba06;
}

.page-header {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 2rem;
  text-align: center;
  margin-bottom: 1rem;
}

.brand-logo-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

.brand-logo {
  display: block;
  width: min(300px, 72vw);
  height: auto;
  opacity: 0.9;
  mix-blend-mode: screen;
}

.brand-logo-top {
  margin: 0 auto 0.8rem;
}

.page-eyebrow {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(200, 204, 220, 0.55);
  margin-bottom: 0.35rem;
}

.page-title {
  font-size: clamp(1.05rem, 2.8vw, 1.45rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #e8eaf2;
  line-height: 1.25;
}

.page-title-brand {
  color: #ffba06;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: 0 2rem;
  box-sizing: border-box;
}

.page-footer {
  margin-top: 1.4rem;
  padding-top: 1.25rem;
  width: 100%;
  max-width: 1200px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid rgba(64, 71, 109, 0.45);
  box-sizing: border-box;
}

.brand-logo-bottom {
  width: min(260px, 74vw);
}

@supports not (mix-blend-mode: screen) {
  .brand-logo {
    mix-blend-mode: normal;
    opacity: 0.72;
  }
}

.donate-section {
  width: 100%;
  max-width: 1200px;
  margin-top: 1.75rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(64, 71, 109, 0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.donate-copy {
  color: rgba(232, 234, 242, 0.72);
  font-size: 0.88rem;
  text-align: center;
  max-width: 640px;
}

.donate-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
  height: 40px;
  padding: 0 1rem;
  border: 1px solid #ffba06;
  border-radius: 6px;
  background: transparent;
  color: #ffba06;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.donate-btn:hover {
  background: #ffba06;
  color: #1a1d2e;
  border-color: #ffba06;
}

#container {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
}

.instrument-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
}

.instrument-label-container {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  min-width: 180px;
  padding-right: 1rem;
}

.instrument-label {
  color: #ffba06;
  font-size: 1rem;
  font-weight: 600;
  text-align: right;
  letter-spacing: 0.05em;
}

.remove-instrument {
  background-color: transparent;
  border: 2px solid #40476d;
  color: #ffba06;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.remove-instrument:hover {
  background-color: #40476d;
  border-color: #ffba06;
  transform: scale(1.1);
  box-shadow: 0 0 8px rgba(255, 186, 6, 0.4);
}

.step-container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  flex-wrap: wrap;
}

div.step {
  width: 50px;
  height: 50px;
  background-color: #2a2d3e;
  border: 2px solid #40476d;
  display: inline-block;
  margin: 0;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 4px;
  position: relative;
}

div.step:hover {
  background-color: #40476d;
  border-color: #ffba06;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

div.step.active {
  background-color: #ffba06;
  border-color: #ffba06;
  box-shadow: 0 0 12px rgba(255, 186, 6, 0.5);
}

div.step.current {
  box-shadow: inset 0 0 0 3px #ffba06, 0 0 16px rgba(255, 186, 6, 0.6);
  background-color: #40476d;
  border-color: #ffba06;
}

div.step.active.current {
  background-color: #ffba06;
  box-shadow: inset 0 0 0 3px white, 0 0 20px rgba(255, 186, 6, 0.8);
}

/* Extra margin after every 4th step (beat markers) */
.step-container div.step.beat-marker {
  margin-left: 0.75rem;
}

.step-container div.step.beat-marker:first-child {
  margin-left: 0;
}

/* Visual indicator for beat markers */
.step-container div.step.beat-marker::before {
  content: '';
  position: absolute;
  left: -0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 60%;
  background-color: #40476d;
  opacity: 0.5;
}

/* Button group */
.button-group {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-shrink: 0;
}

.export-group {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-shrink: 0;
}

.export-btn {
  padding: 0.5rem 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 2px solid #505a7a;
  border-radius: 6px;
  cursor: pointer;
  background-color: rgba(64, 71, 109, 0.35);
  color: #c8cad8;
  transition: all 0.2s ease;
}

.export-btn:hover:not(:disabled) {
  border-color: #ffba06;
  color: #ffba06;
  background-color: rgba(64, 71, 109, 0.55);
}

.export-btn:disabled {
  opacity: 0.45;
  cursor: wait;
}

/* Toggle settings button */
.toggle-settings-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: #40476d;
  border: 2px solid #40476d;
  color: #ffba06;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  padding: 0;
  z-index: 10;
}

.toggle-settings-btn:hover {
  background-color: #505a7a;
  border-color: #ffba06;
  box-shadow: 0 4px 12px rgba(255, 186, 6, 0.3);
}

.toggle-settings-btn.active {
  background-color: #ffba06;
  color: #1a1d2e;
  border-color: #ffba06;
}

.toggle-settings-btn.active:hover {
  background-color: #ffd54f;
}

.toggle-settings-btn.active .toggle-icon {
  transform: rotate(180deg);
}

.toggle-icon {
  display: inline-block;
  transition: transform 0.3s ease;
}

#play, #stop {
  padding: 0.625rem 1.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

#play::before, #stop::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

#play:active::before, #stop:active::before {
  width: 300px;
  height: 300px;
}

#play {
  background-color: #ffba06;
  color: #1a1d2e;
}

#play:hover {
  background-color: #ffd54f;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(255, 186, 6, 0.4);
}

#play:active {
  transform: translateY(0);
}

#stop {
  background-color: #40476d;
  color: white;
}

#stop:hover {
  background-color: #505a7a;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(64, 71, 109, 0.4);
}

#stop:active {
  transform: translateY(0);
}

/* Controls container */
.controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 1rem;
  padding-right: 3rem;
  background: linear-gradient(135deg, rgba(42, 45, 62, 0.8) 0%, rgba(26, 29, 46, 0.9) 100%);
  border-radius: 10px;
  border: 1px solid rgba(64, 71, 109, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  max-width: 1200px;
  width: 100%;
  position: relative;
}

.controls.has-expanded-settings {
  padding-bottom: 1rem;
}

.controls-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.controls-row-top {
  padding-bottom: 0;
}

.controls-row-top.has-settings {
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(64, 71, 109, 0.3);
}

.controls-row-bottom {
  padding-top: 0.75rem;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* CPM Control */
.cpm-control {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  min-width: 180px;
  flex: 0 1 auto;
}

.cpm-control label {
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
}

.cpm-control #cpm-value {
  color: #ffba06;
  font-weight: 600;
  min-width: 3ch;
  display: inline-block;
}

.cpm-control input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #2a2d3e;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.cpm-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffba06;
  cursor: pointer;
  border: 2px solid #1a1d2e;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.2s ease;
}

.cpm-control input[type="range"]::-webkit-slider-thumb:hover {
  background: #ffd54f;
  transform: scale(1.1);
  box-shadow: 0 0 8px rgba(255, 186, 6, 0.6);
}

.cpm-control input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffba06;
  cursor: pointer;
  border: 2px solid #1a1d2e;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.2s ease;
}

.cpm-control input[type="range"]::-moz-range-thumb:hover {
  background: #ffd54f;
  transform: scale(1.1);
  box-shadow: 0 0 8px rgba(255, 186, 6, 0.6);
}

.cpm-control input[type="range"]::-moz-range-track {
  background: #2a2d3e;
  height: 6px;
  border-radius: 3px;
}

/* Bank Control */
.bank-control {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  min-width: 180px;
}

.bank-control label {
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: 100%;
}

.bank-select, .time-signature-select {
  width: 100%;
  padding: 0.5rem 0.875rem;
  background-color: #2a2d3e;
  border: 2px solid #40476d;
  border-radius: 6px;
  color: white;
  font-size: 0.85rem;
  cursor: pointer;
  outline: none;
  transition: all 0.3s ease;
  font-weight: 500;
}

.bank-select:hover {
  border-color: #ffba06;
  box-shadow: 0 0 8px rgba(255, 186, 6, 0.3);
}

.bank-select:focus {
  border-color: #ffba06;
  box-shadow: 0 0 12px rgba(255, 186, 6, 0.5);
}

.bank-select option {
  background-color: #2a2d3e;
  color: white;
  padding: 0.5rem;
}

/* Time Signature Control */
.time-signature-control {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  min-width: 160px;
}

.time-signature-control label {
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: 100%;
}


.time-signature-select:hover {
  border-color: #ffba06;
  box-shadow: 0 0 8px rgba(255, 186, 6, 0.3);
}

.time-signature-select:focus {
  border-color: #ffba06;
  box-shadow: 0 0 12px rgba(255, 186, 6, 0.5);
}

.time-signature-select option {
  background-color: #2a2d3e;
  color: white;
  padding: 0.5rem;
}

/* Add Instrument Button */
#add-instrument-container {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
  position: relative;
}

.add-instrument-btn {
  background-color: #40476d;
  border: 2px solid #ffba06;
  color: #ffba06;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 28px;
  font-weight: 300;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.add-instrument-btn:hover {
  background-color: #ffba06;
  color: #1a1d2e;
  transform: scale(1.1);
  box-shadow: 0 6px 12px rgba(255, 186, 6, 0.4);
}

.add-instrument-btn:active {
  transform: scale(1.05);
}

.instrument-dropdown {
  position: absolute;
  top: 60px;
  background-color: #2a2d3e;
  border: 2px solid #40476d;
  border-radius: 6px;
  min-width: 200px;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
  z-index: 1000;
}

.dropdown-item {
  padding: 0.75rem 1rem;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 1px solid #40476d;
}

.dropdown-item:last-child {
  border-bottom: none;
}

.dropdown-item:hover {
  background-color: #40476d;
  color: #ffba06;
}

.dropdown-item.dropdown-empty {
  color: #888;
  cursor: default;
  text-align: center;
  font-style: italic;
}

.dropdown-item.dropdown-empty:hover {
  background-color: transparent;
  color: #888;
}