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

.page-header {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 24px;
}

.page-logo {
  display: block;
  width: 140px;
  opacity: 0.9;
}

.page-footer {
  position: fixed;
  bottom: 14px;
  right: 18px;
  font-size: 11px;
  font-weight: 500;
  color: rgba(30,36,72,0.35);
}

body {
  font-family: 'Manrope', sans-serif;
  background: #ededed;
  color: #1e2448;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 20px 80px;
}

.layout {
  display: flex;
  gap: 20px;
  width: 100%;
  max-width: 1200px;
  align-items: flex-start;
}

.card {
  background: #ffffff;
  border-radius: 8px;
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border: 1px solid rgba(30,36,72,0.1);
}

.card-preview  { flex: 1; min-width: 0; }
.card-controls { width: 260px; flex-shrink: 0; gap: 20px; }

@media (max-width: 760px) {
  .layout        { flex-direction: column-reverse; }
  .card-preview  { width: 100%; }
  .card-controls { width: 100%; }
}

@media (max-width: 760px), (hover: none), (pointer: coarse) {
  .page-footer {
    position: static;
    margin-top: 24px;
    text-align: right;
  }
}

@media (max-width: 600px) {
  body {
    padding: 28px 14px 32px;
  }

  .card {
    padding: 20px 18px 24px;
  }

  .page-footer {
    position: static;
    margin-top: 24px;
    text-align: right;
  }
}

#logo { width: 100%; }
#logo svg { width: 100%; height: auto; display: block; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(30,36,72,0.7);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(30,36,72,0.8);
}

#count-slider { margin-top: 10px; }

input[type="range"] {
  width: 100%;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: rgba(30,36,72,0.15);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #1e2448;
  border: none;
  box-shadow: 0 0 0 2px #ffffff, 0 0 0 3.5px rgba(143,146,164,0.38);
  cursor: pointer;
  /* spring used when ball is APPEARING (thumb-hidden removed) */
  transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1),
              box-shadow 0.4s cubic-bezier(0.34,1.56,0.64,1),
              opacity 0.2s ease;
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #1e2448;
  border: none;
  box-shadow: 0 0 0 2px #ffffff, 0 0 0 3.5px rgba(143,146,164,0.38);
  cursor: pointer;
  transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1),
              box-shadow 0.4s cubic-bezier(0.34,1.56,0.64,1),
              opacity 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.1); }
input[type="range"]::-moz-range-thumb:hover     { transform: scale(1.1); }

input[type="range"].thumb-hidden { opacity: 0.3; }

input[type="range"].thumb-hidden::-webkit-slider-thumb {
  opacity: 0;
  transform: scale(0.3);
  box-shadow: none;
  /* fast ease-in used when ball is DISAPPEARING (thumb-hidden added) */
  transition: transform 0.15s ease-in,
              box-shadow 0.1s ease-in,
              opacity 0.15s ease-in;
}

input[type="range"].thumb-hidden::-moz-range-thumb {
  opacity: 0;
  transform: scale(0.3);
  box-shadow: none;
  transition: transform 0.15s ease-in,
              box-shadow 0.1s ease-in,
              opacity 0.15s ease-in;
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  padding: 0 9px;
  margin-top: 6px;
}

.slider-ticks span {
  font-size: 12px;
  font-weight: 700;
  color: rgba(30,36,72,0.38);
  transition: color 0.15s ease;
  user-select: none;
  cursor: pointer;
}

.slider-ticks span.active {
  color: #1e2448;
}

.dot-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(30,36,72,0.65);
  transition: color 0.2s ease;
}

.dot-toggle.active { color: #1e2448; }

.dot-toggle-indicator {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid rgba(30,36,72,0.3);
  background: transparent;
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.5s cubic-bezier(0.34,1.56,0.64,1);
}

.dot-toggle.active .dot-toggle-indicator {
  background: #1e2448;
  border-color: #1e2448;
  box-shadow: 0 0 0 2px #ffffff, 0 0 0 3.5px rgba(143,146,164,0.38);
}


.divider {
  height: 1px;
  background: rgba(30,36,72,0.08);
}

#randomize-btn,
#download-btn,
#download-png-btn {
  width: 100%;
}