/* ═══════════════════════════════════════════════════════════════════
   PVSoft Identifier - FAQ & Knowledge Base Stylesheet
   (Optimized for In-App WebView & Modern Web Portals)
   ═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Surface & Base Palette */
  --faq-bg: #0b0f19;
  --faq-surface: #131b2e;
  --faq-card: rgba(22, 31, 51, 0.85);
  --faq-card-hover: rgba(30, 42, 69, 0.95);
  --faq-card-active: #202c48;
  
  --faq-border: rgba(255, 255, 255, 0.08);
  --faq-border-hover: rgba(255, 255, 255, 0.16);
  --faq-border-accent: rgba(103, 61, 230, 0.5);

  /* Primary Accent: Identifier Vibrant Purple */
  --accent-purple: #673DE6;
  --accent-purple-light: #8b5cf6;
  --accent-purple-glow: rgba(103, 61, 230, 0.35);

  /* Typography Colors */
  --faq-text-title: #ffffff;
  --faq-text-body: #cbd5e1;
  --faq-text-muted: #94a3b8;
  --faq-text-dim: #64748b;

  /* Category Vibrant Gradient Badges */
  --grad-all: linear-gradient(135deg, #6366f1, #8b5cf6);
  --grad-plant: linear-gradient(135deg, #10b981, #059669);
  --grad-insect: linear-gradient(135deg, #f59e0b, #d97706);
  --grad-diseases: linear-gradient(135deg, #ef4444, #dc2626);
  --grad-mushroom: linear-gradient(135deg, #ec4899, #be185d);
  --grad-bird: linear-gradient(135deg, #06b6d4, #0284c7);
  --grad-dog: linear-gradient(135deg, #f97316, #ea580c);
  --grad-cat: linear-gradient(135deg, #8b5cf6, #7c3aed);
  --grad-horse: linear-gradient(135deg, #14b8a6, #0d9488);
  --grad-rock: linear-gradient(135deg, #64748b, #475569);
  --grad-coin: linear-gradient(135deg, #eab308, #ca8a04);
  --grad-tips: linear-gradient(135deg, #a855f7, #6366f1);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Elevation & Transitions */
  --faq-shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);
  --faq-shadow-md: 0 10px 30px -6px rgba(0, 0, 0, 0.45);
  --faq-ease: cubic-bezier(0.25, 1, 0.5, 1);
  --faq-speed: 0.25s;
}

/* ─── Search & Category Filter Section (Embedded directly at top) ─── */
.faq-filter-wrapper {
  max-width: 860px;
  margin: 0 auto;
  padding: 10px 16px 4px;
  width: 100%;
}

.faq-search-box {
  display: flex;
  align-items: center;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: 14px;
  padding: 4px 14px;
  box-shadow: var(--faq-shadow-sm);
  transition: all var(--faq-speed) var(--faq-ease);
  backdrop-filter: blur(10px);
}

.faq-search-box:focus-within {
  border-color: var(--accent-purple-light);
  box-shadow: 0 0 20px var(--accent-purple-glow);
  background: var(--faq-card-hover);
}

.faq-search-icon {
  color: var(--faq-text-dim);
  margin-right: 12px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.faq-search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-size: 14.5px;
  padding: 10px 0;
  font-family: var(--font-main);
}

.faq-search-input::placeholder {
  color: var(--faq-text-dim);
}

.faq-search-clear {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--faq-text-muted);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: all 0.2s;
  flex-shrink: 0;
}

.faq-search-clear:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

/* Horizontal Scrollable Category Chips (Replacing the old popup toolbar) */
.faq-category-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 14px 0 8px;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.faq-category-strip::-webkit-scrollbar {
  height: 4px;
}

.faq-category-strip::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.faq-chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--faq-border);
  color: var(--faq-text-muted);
  padding: 7px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: all var(--faq-speed) var(--faq-ease);
  user-select: none;
  white-space: nowrap;
}

.faq-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border-color: var(--faq-border-hover);
  transform: translateY(-1px);
}

.faq-chip.active {
  background: var(--accent-purple);
  color: #ffffff;
  border-color: var(--accent-purple);
  box-shadow: 0 4px 14px var(--accent-purple-glow);
  font-weight: 600;
}

.faq-chip .chip-emoji {
  font-size: 14px;
}

/* ─── Main Content Deck ─── */
.faq-content-deck {
  max-width: 860px;
  margin: 12px auto 40px;
  padding: 0 16px;
  width: 100%;
}

.faq-card-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ─── FAQ Interactive Accordion Card ─── */
.faq-card-item {
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--faq-speed) var(--faq-ease);
  box-shadow: var(--faq-shadow-sm);
  backdrop-filter: blur(8px);
}

.faq-card-item:hover {
  border-color: var(--faq-border-hover);
  background: var(--faq-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--faq-shadow-md);
}

.faq-card-item.is-open {
  border-color: var(--faq-border-accent);
  background: var(--faq-card-active);
  box-shadow: 0 8px 26px -4px var(--accent-purple-glow);
}

.faq-card-trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  user-select: none;
}

.faq-icon-badge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transition: transform var(--faq-speed) var(--faq-ease);
}

.faq-card-item:hover .faq-icon-badge {
  transform: scale(1.06);
}

/* Category Gradient Badges */
.faq-icon-badge.all { background: var(--grad-all); }
.faq-icon-badge.plant { background: var(--grad-plant); }
.faq-icon-badge.insect { background: var(--grad-insect); }
.faq-icon-badge.diseases { background: var(--grad-diseases); }
.faq-icon-badge.mushroom { background: var(--grad-mushroom); }
.faq-icon-badge.bird { background: var(--grad-bird); }
.faq-icon-badge.dog { background: var(--grad-dog); }
.faq-icon-badge.cat { background: var(--grad-cat); }
.faq-icon-badge.horse { background: var(--grad-horse); }
.faq-icon-badge.rock { background: var(--grad-rock); }
.faq-icon-badge.coin { background: var(--grad-coin); }
.faq-icon-badge.tips { background: var(--grad-tips); }

.faq-title-col {
  flex: 1;
  min-width: 0;
}

.faq-category-tag {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--accent-purple-light);
  margin-bottom: 3px;
  font-family: var(--font-heading);
}

.faq-title-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--faq-text-title);
  line-height: 1.4;
  font-family: var(--font-heading);
}

.faq-chevron-wrap {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--faq-text-muted);
  flex-shrink: 0;
  transition: transform 0.28s var(--faq-ease), background 0.2s;
}

.faq-card-item.is-open .faq-chevron-wrap {
  transform: rotate(180deg);
  background: var(--accent-purple);
  color: #ffffff;
}

/* Accordion Expansion */
.faq-collapsible-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s var(--faq-ease);
}

.faq-card-item.is-open .faq-collapsible-wrapper {
  grid-template-rows: 1fr;
}

.faq-collapsible-inner {
  overflow: hidden;
}

.faq-answer-box {
  padding: 0 18px 18px 74px;
}

@media (max-width: 600px) {
  .faq-answer-box {
    padding: 0 16px 16px 16px;
  }
}

.faq-answer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 14px;
  color: var(--faq-text-body);
  font-size: 14px;
  line-height: 1.65;
}

.faq-answer-divider p {
  margin-bottom: 10px;
}

.faq-answer-divider p:last-child {
  margin-bottom: 0;
}

.faq-answer-divider ul, .faq-answer-divider ol {
  margin: 8px 0 10px 20px;
}

.faq-answer-divider li {
  margin-bottom: 5px;
}

.faq-answer-divider strong {
  color: #ffffff;
  font-weight: 600;
}

/* Callout Tips inside Answers */
.faq-tip-callout {
  margin-top: 12px;
  background: rgba(103, 61, 230, 0.12);
  border-left: 3px solid var(--accent-purple-light);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: #e2e8f0;
}

.faq-tip-callout strong {
  color: #a78bfa;
}

/* ─── In-App Feedback Drawer ─── */
.faq-feedback-drawer {
  margin-top: 28px;
  background: var(--faq-card);
  border: 1px solid var(--faq-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--faq-shadow-sm);
}

.faq-drawer-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.2s;
}

.faq-drawer-trigger:hover {
  background: rgba(255, 255, 255, 0.05);
}

.faq-drawer-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14.5px;
  color: #ffffff;
  font-family: var(--font-heading);
}

.faq-drawer-body {
  padding: 18px;
  border-top: 1px solid var(--faq-border);
}

.faq-form-field {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--faq-border);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-size: 13.5px;
  font-family: var(--font-main);
  margin-bottom: 10px;
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.faq-form-field:focus {
  border-color: var(--accent-purple);
}

.faq-form-textarea {
  min-height: 80px;
  resize: vertical;
}

.faq-btn-submit {
  width: 100%;
  background: var(--accent-purple);
  border: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 14px;
  padding: 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-heading);
}

.faq-btn-submit:hover {
  background: #542ecb;
  box-shadow: 0 4px 14px var(--accent-purple-glow);
}

.faq-btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ─── Compact Toast Notice ─── */
.faq-toast-notice {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(19, 27, 46, 0.95);
  border: 1px solid var(--faq-border-accent);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  z-index: 9999;
  animation: faqToastIn 0.25s var(--faq-ease);
}

.faq-toast-notice.success {
  border-color: #10b981;
}

.faq-toast-notice.error {
  border-color: #ef4444;
}

@keyframes faqToastIn {
  from { opacity: 0; transform: translate(-50%, 15px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ─── Empty Results State ─── */
.faq-empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--faq-text-dim);
}

.faq-empty-icon {
  font-size: 38px;
  margin-bottom: 12px;
}

.faq-empty-title {
  font-weight: 700;
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 6px;
  font-family: var(--font-heading);
}

.faq-empty-desc {
  font-size: 13px;
  color: var(--faq-text-muted);
}