/* ═══════════════════════════════════════════════════════
   Buttons, Inputs & UI Components
   ═══════════════════════════════════════════════════════ */

/* ─── Buttons ───────────────────────────────────────── */
.btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
  border-radius: var(--radius);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.06em;
  user-select: none;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.035), transparent 55%);
  opacity: 0;
  transition: opacity var(--duration);
}
.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--border2));
  color: var(--text);
  background: var(--surface3);
  box-shadow: 0 10px 24px rgba(0,0,0,0.12);
}
.btn:hover::before { opacity: 1; }
.btn:active { transform: scale(0.97); }
.btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 500;
  box-shadow: 0 12px 26px rgba(92,200,255,0.18);
}
.btn.danger:hover {
  border-color: var(--red);
  color: var(--red);
  box-shadow: 0 0 12px rgba(239,68,68,0.15);
}
.btn-sm { padding: 5px 10px; font-size: 9.5px; }

/* ─── Theme Switcher ────────────────────────────────── */
.theme-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  background: var(--bg);
}
.theme-dot {
  width: 19px; height: 19px;
  border-radius: 6px;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--duration) var(--ease-out);
  flex-shrink: 0;
}
.theme-dot:hover { transform: scale(1.15); box-shadow: var(--shadow-sm); }
.theme-dot.active {
  border-color: var(--text);
  box-shadow: 0 0 8px var(--glow);
  transform: scale(1.05);
}
.theme-dot[data-t="dark"]   { background: linear-gradient(135deg, #0a0e1a, #1a2336); }
.theme-dot[data-t="arctic"] { background: linear-gradient(135deg, #e8edf3, #ffffff); }
.theme-dot[data-t="neon"]   { background: linear-gradient(135deg, #0a0020, #ff2eff); }
.theme-dot[data-t="forest"] { background: linear-gradient(135deg, #101810, #39d353); }

/* ─── Inputs & Sliders ─────────────────────────────── */
.search-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--duration), box-shadow var(--duration);
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--glow);
}

input[type=range] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border2);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  transition: background var(--duration);
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--glow);
  cursor: pointer;
  transition: transform var(--duration), box-shadow var(--duration);
}
input[type=range]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
  box-shadow: 0 0 14px var(--glow-strong);
}
input[type=range]::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}

select.format-sel {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 9px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  border-radius: var(--radius);
  cursor: pointer;
  outline: none;
  transition: border-color var(--duration);
}
select.format-sel:focus { border-color: var(--accent); }

/* ─── Progress Bar ──────────────────────────────────── */
.progress-wrap {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
  display: none;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s ease;
}

/* ─── Notification Toast ────────────────────────────── */
#notification {
  position: fixed;
  top: 64px;
  right: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--border);
  padding: 13px 16px;
  border-radius: var(--radius-lg);
  font-size: 12px;
  z-index: 300;
  transform: translateX(calc(100% + 24px));
  transition: transform var(--duration-lg) var(--ease-spring),
              opacity 0.25s ease;
  max-width: 300px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(var(--glass-blur));
}
#notification.show { transform: translateX(0); }
#notification:not(.show) { opacity: 0; pointer-events: none; }
#notification.success { border-color: var(--green); }
#notification.error   { border-color: var(--red); }
#notification.info    { border-color: var(--accent); }