@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&display=swap");

:root {
  --color-bg-main: #1e1c1c;
  --color-bg-input: #2d2d2d;
  --color-bg-slider: #111111;
  --color-border: #404040;
  --color-border-light: rgb(90, 90, 90);
  --color-text-primary: #ffffff;
  --color-text-secondary: #dadada;
  --color-text-muted: #737373;
  --transition-fast: 0.15s ease;
}

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

input,
textarea,
select,
button {
  font: inherit;
  -webkit-appearance: none;
  appearance: none;
}

body {
  font-family: "Instrument Serif", serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.main-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  align-items: center;
  padding: 20px;
  gap: 20px;
  background: var(--color-bg-main);
}

.title {
  color: var(--color-text-primary);
  font-size: 24px;
  font-weight: 600;
  text-align: center;
}

.inner-container {
  height: 100%;
  width: 100%;
  border-radius: 20px;
  border: 1px dashed var(--color-border-light);

  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 6px;

  padding: 5px;
}

.innerpanel {
  height: 100%;
  width: 100%;
  border: 1px dashed var(--color-border-light);
  border-radius: 17px;
}

#leftcontainer {
  color: var(--color-text-secondary);
  padding: 20px;
}

.input-container {
  display: flex;
  gap: 4px;
  flex-direction: column;
}

input:not([type="range"]) {
  width: 100%;
  height: 2.5rem;
  padding: 10px 12px;

  font-family: "Lato", sans-serif;
  font-size: 14px;

  color: #fafafa;
  background: var(--color-bg-input);

  border: 1px solid var(--color-border);
  border-radius: 6px;

  transition: border var(--transition-fast);
}

input:not([type="range"])::placeholder {
  color: #999;
}

input:focus {
  outline: none;
  border-color: #666;
}

input:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.algorithm-selector {
  margin-top: 12px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.algorithm-selector label {
  font-family: "Lato", sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
}

#algorithm-select {
  width: 100%;
  height: 2.5rem;
  padding: 8px 12px;

  font-family: "Lato", sans-serif;
  font-size: 14px;

  color: #bababa;
  background: var(--color-bg-input);

  border: 1px solid var(--color-border);
  border-radius: 6px;

  cursor: pointer;
  transition: border var(--transition-fast);
}

#algorithm-select:focus {
  outline: none;
  border-color: #666;
}

.buttons {
  margin-top: 10px;
  font-family: "Lato", sans-serif;
  width: 100%;

  display: flex;
  flex-direction: column;
  gap: 10px;

  font-weight: 500;
}

.buttons .control-btn {
  width: 100%;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #ffffff;
  color: #111827;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease;
}

.buttons .control-btn::before {
  content: none;
}

.buttons .control-btn .wrapper {
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 8px;
  -webkit-mask-image: none;
  mask-image: none;
}

.buttons .control-btn .wrapper .btn-label {
  color: #111827;
}

.buttons .control-btn:hover:not(:disabled) {
  background: #f9fafb;
  border-color: #d1d5db;
}

.buttons .control-btn:active:not(:disabled) {
  background: #f3f4f6;
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
}

.buttons .control-btn:focus-visible {
  outline: 2px solid #94a3b8;
  outline-offset: 2px;
}

.buttons .control-btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  background: #f3f4f6;
  color: #6b7280;
}

#pause-animation-button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.speed-selector {
  margin-top: 12px;
  width: 100%;
}

.speed-slider-wrap {
  position: relative;
  width: 100%;
  height: 40px;

  background: #1a1a1a;

  border-radius: 6px;

  display: flex;
  align-items: center;
}

.speed-label,
.speed-value {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);

  font-family: "Lato", sans-serif;
  font-size: 14px;
  font-weight: 500;

  color: var(--color-text-muted);

  pointer-events: none;
  z-index: 1;
}

.speed-label {
  left: 18px;
}

.speed-value {
  right: 18px;
  min-width: 2ch;
  text-align: right;
}

#slider {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;

  width: 100%;
  height: 40px;

  padding: 0;
  margin: 0;

  background: var(--color-bg-slider);

  border: none;

  z-index: 0;
  cursor: pointer;
}

#slider::-webkit-slider-runnable-track {
  height: 40px;
  border-radius: 0;
  background: transparent;
}

#slider::-moz-range-track {
  height: 40px;
  border-radius: 0;
  background: transparent;
}

#slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;

  width: 8px;
  height: 40px;

  background: #9f9999;

  border: none;
  border-radius: 2px;

  cursor: pointer;
}

#slider::-moz-range-thumb {
  width: 8px;
  height: 50px;

  background: #b4b4b4;

  border: none;
  border-radius: 0;

  cursor: pointer;
}

#slider:focus {
  outline: none;
}

#rightcontainer {
  display: flex;
  align-items: center;
  justify-content: center;
}

.upper-rightcontainer {
  height: 85%;
  width: 90%;
  border: 1px dashed #353535;
  border-radius: 8px;
  padding: 40px 16px 16px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: var(--bar-gap, 4px);
  min-height: 120px;
}

.bar {
  position: relative;
  flex: 0 0 var(--bar-width, 20px);
  width: var(--bar-width, 20px);
  min-width: 12px;
  background: #3b82f6;
  border-radius: 4px 4px 0 0;
  transition:
    height 0.25s ease,
    background 0.25s ease;
}

.bar.comparing {
  background: #facc15;
}

.bar.swapping {
  background: #ef4444;
}

.bar.pivot {
  background: #8b5cf6;
}

.bar.sorted {
  background: #22c55e;
}

.bar-value {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  color: #ffffff;
}