:root {
  --bg-0: #0b0716;
  --bg-1: #150e2e;
  --violet: #8b5cf6;
  --violet-2: #a78bfa;
  --fuchsia: #d946ef;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: 'Vazirmatn', Tahoma, sans-serif;
  background:
    radial-gradient(circle at 20% 0%, rgba(139,92,246,0.18), transparent 45%),
    radial-gradient(circle at 85% 10%, rgba(217,70,239,0.14), transparent 40%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 60%);
  background-attachment: fixed;
  color: #e9e5f5;
  min-height: 100vh;
}

/* Header */
.header-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(167,139,250,0.35), transparent 70%);
  pointer-events: none;
}
.sparkle { animation: sparkle 2.5s ease-in-out infinite; }
@keyframes sparkle {
  0%, 100% { transform: rotate(0) scale(1); opacity: 1; }
  50% { transform: rotate(15deg) scale(1.2); opacity: 0.8; }
}

/* Cards */
.card {
  background: rgba(28, 20, 54, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(139, 92, 246, 0.18);
  border-radius: 1.25rem;
  box-shadow: 0 10px 40px -12px rgba(0,0,0,0.5);
}

/* Chips */
.chip {
  font-size: 0.8rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.25);
  color: #c4b5fd;
  transition: all 0.2s;
  cursor: pointer;
}
.chip:hover {
  background: rgba(139, 92, 246, 0.25);
  transform: translateY(-1px);
}
.chip-accent {
  background: linear-gradient(135deg, rgba(217,70,239,0.25), rgba(139,92,246,0.25));
  border-color: rgba(217,70,239,0.4);
  color: #f0abfc;
  font-weight: 700;
}

/* Pills */
.pill {
  padding: 0.55rem 0.5rem;
  border-radius: 0.75rem;
  background: rgba(15, 10, 32, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.18);
  color: #b8afd6;
  transition: all 0.2s;
  cursor: pointer;
  text-align: center;
}
.pill:hover { border-color: rgba(167,139,250,0.5); color: #fff; }
.pill-active {
  background: linear-gradient(135deg, var(--violet), var(--fuchsia));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px -6px rgba(139,92,246,0.6);
}

/* Toggle */
.toggle {
  width: 48px; height: 26px;
  border-radius: 9999px;
  background: rgba(100, 90, 130, 0.4);
  border: 1px solid rgba(139,92,246,0.2);
  position: relative;
  transition: all 0.25s;
  cursor: pointer;
  flex-shrink: 0;
}
.toggle-on { background: linear-gradient(135deg, var(--violet), var(--fuchsia)); }
.toggle-knob {
  position: absolute;
  top: 2px; right: 2px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: all 0.25s;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}
.toggle-on .toggle-knob { right: calc(100% - 22px); }

/* Generate button */
.gen-btn {
  padding: 0.95rem;
  border-radius: 0.9rem;
  font-weight: 900;
  font-size: 1.05rem;
  color: #fff;
  background: linear-gradient(135deg, #8b5cf6, #d946ef, #f97316);
  background-size: 200% auto;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 8px 24px -8px rgba(217,70,239,0.6);
}
.gen-btn:hover:not(:disabled) {
  background-position: right center;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -8px rgba(217,70,239,0.75);
}
.gen-btn:active:not(:disabled) { transform: translateY(0); }

/* Action buttons */
.act-btn {
  padding: 0.65rem;
  border-radius: 0.75rem;
  font-weight: 700;
  font-size: 0.9rem;
  background: rgba(139,92,246,0.12);
  border: 1px solid rgba(139,92,246,0.25);
  color: #c4b5fd;
  cursor: pointer;
  transition: all 0.2s;
}
.act-btn:hover { background: rgba(139,92,246,0.25); color: #fff; }
.act-primary {
  background: linear-gradient(135deg, var(--violet), var(--fuchsia));
  border-color: transparent;
  color: #fff;
}
.act-primary:hover { filter: brightness(1.1); }

/* Result placeholder */
.result-placeholder {
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: rgba(15, 10, 32, 0.5);
  border: 2px dashed rgba(139,92,246,0.2);
}

/* Spinner */
.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

.pulse { animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.7; }
}

/* Shimmer */
.shimmer {
  position: relative;
  overflow: hidden;
}
.shimmer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(167,139,250,0.12), transparent);
  animation: shimmer 1.6s infinite;
}
@keyframes shimmer {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* Fade in */
.fade-in { animation: fadeIn 0.5s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--violet), var(--fuchsia));
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 8px 24px -6px rgba(0,0,0,0.5);
  z-index: 100;
  animation: toastIn 0.3s ease;
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(139,92,246,0.4); border-radius: 4px; }