/* ============================================
   FONTGENERATOR — Left Sidebar
   ============================================ */

.sidebar-left {
  width: var(--sidebar-left-w);
  flex-shrink: 0;
  background: var(--color-bg-sidebar);
  border-right: 1px solid var(--color-border);
  height: calc(100vh - var(--navbar-h));
  position: sticky;
  top: var(--navbar-h);
  overflow-y: auto;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

/* === Section Labels === */
.sidebar-left__section-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sidebar-left__section-title span.step {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  color: white;
  font-size: 11px;
  font-weight: var(--font-bold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* === Text Input === */
.text-input-wrapper {
  position: relative;
}

.text-input {
  width: 100%;
  min-height: 100px;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  line-height: var(--leading-relaxed);
}

.text-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
  outline: none;
}

.text-input::placeholder {
  color: var(--color-text-muted);
}

.text-input-counter {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* === Style Filter Tabs === */
.style-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.style-tab {
  padding: 5px var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.style-tab:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: rgba(124,58,237,0.04);
}

.style-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}

/* === Font Style Grid === */
.font-style-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}

.font-style-card {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: var(--space-2);
  position: relative;
  overflow: hidden;
}

.font-style-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-subtle);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.font-style-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.font-style-card:hover::before {
  opacity: 1;
}

.font-style-card.active {
  border-color: var(--color-primary);
  background: rgba(124,58,237,0.04);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}

.font-style-card__preview {
  font-size: 1.75rem;
  color: var(--color-text-primary);
  line-height: 1;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-fast);
}

.font-style-card:hover .font-style-card__preview {
  transform: scale(1.08);
}

.font-style-card.active .font-style-card__preview {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.font-style-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
  position: relative;
  z-index: 1;
}

.font-style-card.active .font-style-card__label {
  color: var(--color-primary);
}

/* === Generate Button === */
.btn-generate {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-4) var(--space-6);
  background: var(--gradient-cta);
  color: white;
  border: none;
  border-radius: var(--radius-xl);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  font-family: var(--font-ui);
  cursor: pointer;
  box-shadow: var(--shadow-primary);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  margin-top: auto;
}

.btn-generate::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-lg);
}

.btn-generate:hover::before {
  opacity: 1;
}

.btn-generate:active {
  transform: translateY(0);
}

.btn-generate.loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn-generate__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-generate__spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
  display: none;
}

.btn-generate.loading .btn-generate__icon { display: none; }
.btn-generate.loading .btn-generate__spinner { display: block; }

/* === Responsive === */
@media (max-width: 1024px) {
  .sidebar-left {
    width: 100%;
    height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
}