/* ========================================
   components.css - Shared UI Components
   BEM naming convention
   ======================================== */


/* ========================================
   Screen (shared wrapper for all pages)
   ======================================== */

.screen {
  display: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.screen.is-visible {
  display: flex;
  opacity: 1;
}

.screen.is-leaving {
  opacity: 0;
}


/* ========================================
   Buttons
   ======================================== */

/* --- Primary button (green CTA) --- */
.btn--primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-12);
  background-color: var(--color-primary);
  color: var(--color-black);
  font-weight: 900;
  font-size: var(--text-xl);
  text-transform: uppercase;
  font-style: italic;
  transition: background-color var(--transition-normal);
  cursor: pointer;
}

.btn--primary:hover {
  background-color: var(--color-text);
}

.btn--primary .icon {
  display: inline-block;
  transition: transform var(--transition-normal);
}

.btn--primary:hover .icon {
  transform: translateX(4px);
}

/* Primary button decorative border */
.btn--primary-border {
  position: absolute;
  bottom: -8px;
  right: -8px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-text);
  z-index: var(--z-bg);
  transition: all var(--transition-normal);
  pointer-events: none;
}

.btn--primary:hover .btn--primary-border {
  bottom: 0;
  right: 0;
}

/* --- Ghost button (transparent, bordered) --- */
.btn--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  font-weight: 700;
  text-transform: uppercase;
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: background-color var(--transition-normal);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* --- Back button (text-only, muted) --- */
.btn--back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color var(--transition-normal);
}

.btn--back:hover {
  color: var(--color-primary);
}

/* --- CTA button (result page primary action) --- */
.btn--cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-5);
  background-color: var(--color-primary);
  color: var(--color-black);
  font-weight: 900;
  text-transform: uppercase;
  font-style: italic;
  transition: background-color var(--transition-normal);
}

.btn--cta:hover {
  background-color: var(--color-text);
}

/* --- Restart button (result page bottom) --- */
.btn--restart {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color var(--transition-normal);
}

.btn--restart:hover {
  color: var(--color-text);
}


/* ========================================
   Option Button (route selection & answers)
   ======================================== */

.option-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  text-align: left;
  transition: all var(--transition-normal);
}

.option-btn:hover {
  border-color: var(--color-primary);
  background-color: rgba(var(--color-primary-rgb), 0.05);
}

.option-btn__label {
  font-size: var(--text-2xl);
  font-weight: 900;
  font-style: italic;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.option-btn__desc {
  color: rgb(107, 114, 128);
  font-size: var(--text-sm);
}

.option-btn__arrow {
  position: absolute;
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  color: var(--color-primary);
}

.option-btn:hover .option-btn__arrow {
  opacity: 1;
}

/* --- Answer option button (question page) --- */
.answer-btn {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  text-align: left;
  font-weight: 700;
  text-transform: uppercase;
  font-style: italic;
  font-size: var(--text-sm);
  transition: all var(--transition-normal);
}

@media (min-width: 768px) {
  .answer-btn {
    font-size: var(--text-base);
  }
}

.answer-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-black);
}


/* ========================================
   Progress Bar
   ======================================== */

.progress {
  width: 100%;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.1);
}

.progress__bar {
  height: 100%;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}


/* ========================================
   Modal (Image Preview)
   ======================================== */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background-color: var(--color-bg-overlay);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal.is-open {
  display: flex;
  opacity: 1;
}

.modal__content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  max-width: 100%;
  max-height: 100%;
}

.modal__image-wrapper {
  position: relative;
  background-color: var(--color-bg-card);
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal__image {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

.modal__actions {
  display: flex;
  gap: var(--space-4);
}

.modal__btn-download {
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-primary);
  color: var(--color-black);
  font-weight: 900;
  text-transform: uppercase;
  font-style: italic;
  font-size: var(--text-sm);
  transition: background-color var(--transition-normal);
}

.modal__btn-download:hover {
  background-color: var(--color-text);
}

.modal__btn-close {
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-weight: 700;
  text-transform: uppercase;
  font-style: italic;
  font-size: var(--text-sm);
  transition: background-color var(--transition-normal);
}

.modal__btn-close:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.modal__hint {
  color: var(--color-text-muted);
  font-size: var(--text-tiny);
  text-transform: uppercase;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
}


/* ========================================
   Icon
   ======================================== */

.icon {
  display: inline-block;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  vertical-align: middle;
}

.icon--sm {
  width: 16px;
  height: 16px;
}

.icon--md {
  width: 20px;
  height: 20px;
}

.icon--lg {
  width: 32px;
  height: 32px;
}

.icon--xl {
  width: 48px;
  height: 48px;
}

.icon--spin {
  width: 64px;
  height: 64px;
}

.icon--primary {
  color: var(--color-primary);
}


/* ========================================
   Custom Scrollbar
   ======================================== */

.custom-scrollbar::-webkit-scrollbar {
  width: 4px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--color-primary);
}

/* Firefox */
.custom-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) rgba(255, 255, 255, 0.05);
}