/* ==========================================================================
   YOUSFUL STUDIO — CORE COMPONENTS (BUTTONS, CARDS, FORMS, BADGES)
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition-fast);
  line-height: 1;
}

.btn-primary {
  background: #ffffff;
  color: #000000;
  font-weight: 700;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: #f1f3f7;
  color: #000000;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.25);
}

.btn-accent {
  background: var(--app-accent);
  color: #07090e;
  font-weight: 700;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 20px rgba(var(--app-accent-rgb), 0.25);
}

.btn-accent:hover {
  background: #ffffff;
  color: #07090e;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(var(--app-accent-rgb), 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-pill);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--border-highlight);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.95rem 1.85rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

.btn-playstore {
  background: #111827;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-playstore:hover {
  background: #1f2937;
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.btn-playstore svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.card:hover {
  border-color: var(--border-medium);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}

.card.interactive {
  cursor: pointer;
}

.card.interactive:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--app-accent-rgb), 0.35);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), 0 0 24px rgba(var(--app-accent-rgb), 0.08);
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-live {
  background: rgba(0, 245, 160, 0.08);
  border: 1px solid rgba(0, 245, 160, 0.25);
  color: var(--accent-emerald);
}

.badge-live .live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
}

.badge-featured {
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

/* Form Controls */
.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1.15rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--app-accent);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(var(--app-accent-rgb), 0.15);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
}

/* Floating Toast Notification */
#studio-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-highlight);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 2000;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(var(--app-accent-rgb), 0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

#studio-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   FAQ ACCORDION COMPONENT
   ========================================================================== */
.faq-accordion, .faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(18, 20, 28, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(22, 25, 36, 0.8);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  user-select: none;
}

.faq-icon {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--app-accent, #818cf8);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

.faq-item.open .faq-answer {
  padding: 0 1.5rem 1.25rem;
  max-height: 350px;
}