/* ── Design tokens ──────────────────────────────────────────── */

:root {
  --navy:      #1E2448;
  --yellow:    #FDCD14;
  --cyan:      #09B8E3;
  --green:     #30A533;
  --purple:    #AB539A;
  --orange:    #F08000;
  --blue:      #027BC2;
  --red:       #E30615;
  --off-white: #f7f7f5;
  --rainbow:   linear-gradient(to right, #E30615, #F08000, #FDCD14, #30A533, #09B8E3, #027BC2, #AB539A);
  --font:      'Manrope', sans-serif;
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-pill: 100px;
}

/* ── Shared button system ───────────────────────────────────── */

@property --rng-deg {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

@keyframes ring-spin {
  to { --rng-deg: 360deg; }
}

.bar-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.95);
  font-size: 22px;
  font-weight: 300;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-shrink: 0;
  background: #1e2448;
  border: none;
  box-shadow: 0 0 0 2px #ffffff, 0 0 0 3.5px rgba(143, 146, 164, 0.38);
  transition: filter 0.2s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bar-btn:hover { transform: scale(1.03); }

.bar-btn.is-pressed {
  filter: brightness(0.88);
  transform: scale(0.95);
  transition: filter 0.08s ease-out, transform 0.08s ease-out;
}

.bar-btn-wide {
  width: auto;
  border-radius: 100px;
  padding: 0 22px;
  font-size: 13px;
  font-weight: 700;
}

/* ── Rainbow hover ──────────────────────────────────────────── */

.bar-btn-rainbow {
  position: relative;
  transition: color 0.35s ease, box-shadow 0.35s ease,
              filter 0.2s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bar-btn-rainbow::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 3px;
  background: conic-gradient(from var(--rng-deg),
    #AB539A, #E30615, #F08000, #FDCD14, #30A533, #09B8E3, #027BC2, #AB539A 360deg);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  animation: ring-spin 5s linear infinite;
  transition: opacity 0.35s ease;
}

.random-content {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar-btn-rainbow:not(.bar-btn-disabled):hover {
  color: #1e2448;
  box-shadow: none;
  background: #ffffff;
}

.bar-btn-rainbow:not(.bar-btn-disabled):hover::after { opacity: 1; }

/* ── Disabled ───────────────────────────────────────────────── */

.bar-btn-disabled,
.zoom-disabled {
  transform: scale(0.93);
  filter: brightness(0.78);
  cursor: default;
  pointer-events: none;
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.2s ease;
}

/* ── Mode switch ────────────────────────────────────────────── */

.mode-switch {
  display: flex;
  background: rgba(30, 36, 72, 0.08);
  border-radius: 100px;
  padding: 4px;
  gap: 4px;
  width: 100%;
}

.mode-btn {
  flex: 1;
  height: 40px;
  border: none;
  border-radius: 100px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  background: transparent;
  color: rgba(30, 36, 72, 0.35);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

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

.mode-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ── No hover scale / no rainbow on touch ───────────────────── */

@media (max-width: 760px), (hover: none), (pointer: coarse) {
  .bar-btn:hover { transform: none; }
  .bar-btn-rainbow { animation: none; }
  .bar-btn-rainbow::after { display: none; }
  .bar-btn-rainbow:not(.bar-btn-disabled):hover {
    color: rgba(255, 255, 255, 0.95);
    background: #1e2448;
    box-shadow: 0 0 0 2px #ffffff, 0 0 0 3.5px rgba(143, 146, 164, 0.38);
  }
}