/* ============================================================
   Component CSS — Actions
   ============================================================ */

/* ============ LiquidButton ============ */
.lq-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  user-select: none;
  cursor: pointer;
  transition:
    transform 0.16s var(--ease-out),
    filter 0.16s var(--ease-out),
    box-shadow 0.16s var(--ease-out);
  isolation: isolate;
}
.lq-btn.is-block { width: 100%; }
.lq-btn.is-disabled,
.lq-btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

/* Sizes */
.lq-btn--sm { font-size: 13px; padding: 6px 13px; min-height: 28px; }
.lq-btn--md { font-size: 15px; padding: 9px 18px; min-height: 36px; }
.lq-btn--lg { font-size: 17px; padding: 12px 22px; min-height: 46px; }

/* Radius */
.lq-btn--r-pill { border-radius: calc(var(--r-pill) * var(--radius-scale)); }
.lq-btn--r-md   { border-radius: calc(var(--r-3) * var(--radius-scale)); }
.lq-btn--r-lg   { border-radius: calc(var(--r-4) * var(--radius-scale)); }

/* Primary — accent tinted */
.lq-btn--primary {
  color: white;
  --tint: var(--accent);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--tint), white 14%) 0%,
    var(--tint) 50%,
    color-mix(in oklab, var(--tint), black 10%) 100%);
  border: 1px solid color-mix(in oklab, var(--tint), black 18%);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 0 rgba(0, 0, 0, 0.2),
    0 2px 6px color-mix(in oklab, var(--tint), transparent 50%),
    0 6px 20px rgba(0, 0, 0, 0.18);
}
.lq-btn--primary:hover { filter: brightness(1.05) saturate(1.05); }

/* Destructive — red tinted */
.lq-btn--destructive {
  --tint: var(--red);
  color: white;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--tint), white 14%) 0%,
    var(--tint) 50%,
    color-mix(in oklab, var(--tint), black 12%) 100%);
  border: 1px solid color-mix(in oklab, var(--tint), black 18%);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, 0.45),
    inset 0 -1px 0 0 rgba(0, 0, 0, 0.22),
    0 2px 6px color-mix(in oklab, var(--tint), transparent 50%),
    0 6px 20px rgba(0, 0, 0, 0.18);
}

/* Tinted — soft accent on glass */
.lq-btn--tinted {
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in oklab, var(--accent), transparent 75%);
  backdrop-filter: blur(20px) saturate(170%);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, 0.18),
    0 2px 8px rgba(0, 0, 0, 0.18);
}
.lq-btn--tinted:hover { background: color-mix(in oklab, var(--accent), transparent 70%); }

/* Secondary — pure glass */
.lq-btn--secondary {
  color: var(--text-1);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  box-shadow:
    inset 0 1px 0 0 var(--glass-highlight),
    inset 0 -1px 0 0 var(--glass-shadow-inner),
    0 2px 6px rgba(0, 0, 0, 0.14),
    0 6px 18px rgba(0, 0, 0, 0.16);
}
.lq-btn--secondary:hover { background: var(--glass-bg-strong); }

/* Ghost — no surface until hover */
.lq-btn--ghost {
  color: var(--text-1);
  background: transparent;
  border: 1px solid transparent;
}
.lq-btn--ghost:hover {
  background: var(--glass-bg-soft);
  border-color: var(--glass-border);
}

.lq-btn__icon { display: inline-flex; align-items: center; }
.lq-btn__label { display: inline-flex; }
.lq-btn__spinner {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: lq-spin 0.7s linear infinite;
}

@keyframes lq-spin { to { transform: rotate(360deg); } }

/* ============ LiquidIconButton ============ */
.lq-iconbtn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.16s var(--ease-out), filter 0.16s, background 0.16s;
  isolation: isolate;
}
.lq-iconbtn.is-disabled { opacity: 0.4; pointer-events: none; }

.lq-iconbtn--sm { width: 32px; height: 32px; }
.lq-iconbtn--md { width: 40px; height: 40px; }
.lq-iconbtn--lg { width: 52px; height: 52px; }

.lq-iconbtn__inner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.lq-iconbtn--glass {
  color: var(--text-1);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  box-shadow:
    inset 0 1px 0 0 var(--glass-highlight),
    inset 0 -1px 0 0 var(--glass-shadow-inner),
    0 2px 6px rgba(0, 0, 0, 0.18),
    0 6px 16px rgba(0, 0, 0, 0.16);
}
.lq-iconbtn--glass:hover { background: var(--glass-bg-strong); }

.lq-iconbtn--tinted {
  color: white;
  --tint: var(--accent);
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--tint), white 14%) 0%,
    var(--tint) 55%,
    color-mix(in oklab, var(--tint), black 10%) 100%);
  border: 1px solid color-mix(in oklab, var(--tint), black 18%);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, 0.45),
    0 2px 6px color-mix(in oklab, var(--tint), transparent 50%),
    0 6px 16px rgba(0, 0, 0, 0.2);
}

.lq-iconbtn--destructive {
  --tint: var(--red);
  color: white;
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--tint), white 14%) 0%,
    var(--tint) 55%,
    color-mix(in oklab, var(--tint), black 10%) 100%);
  border: 1px solid color-mix(in oklab, var(--tint), black 18%);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, 0.45),
    0 2px 6px color-mix(in oklab, var(--tint), transparent 50%),
    0 6px 16px rgba(0, 0, 0, 0.2);
}

.lq-iconbtn--ghost {
  color: var(--text-1);
  background: transparent;
}
.lq-iconbtn--ghost:hover { background: var(--glass-bg-soft); }

.lq-iconbtn__badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--red);
  color: white;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-page);
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}