/* ========================================================================
   Panda Professor — Chengdu Tours
   Custom stylesheet (DaisyUI 5 + Tailwind 4 CDN companion)
   ======================================================================== */

/* ----- Custom Properties ----- */
:root {
  --panda-green: #2d6a4f;
  --panda-green-light: #52b788;
  --panda-gold: #e9c46a;
  --panda-coral: #e76f51;
  --panda-cream: #fefae0;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-blur: 16px;
  --chat-width: 360px;
  --chat-height: 480px;
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="forest"] {
  --glass-bg: rgba(0, 0, 0, 0.35);
  --glass-border: rgba(255, 255, 255, 0.08);
}

[data-theme="bamboo"] {
  --panda-green: #4a6f4a;
  --panda-green-light: #5f8a5f;
  --panda-gold: #c8a85e;
  --panda-coral: #d96c50;
  --panda-cream: #fbf6eb;
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(74, 111, 74, 0.2);
  --color-base-100: #f4f8f0;
  --color-base-200: #e4eede;
  --color-base-300: #d3e0cd;
  --color-base-content: #29452e;
  --color-primary: #3d6a46;
  --color-primary-content: #f4f8f0;
  --color-secondary: #8b5e3c;
  --color-secondary-content: #fffaf4;
  --color-accent: #8f6f46;
  --color-accent-content: #fff7eb;
  --color-neutral: #385f3f;
  --color-neutral-content: #f4f8f0;
  --color-info: #3c8dbc;
  --color-info-content: #edf9ff;
  --color-success: #4d8f6e;
  --color-success-content: #f4f9f5;
  --color-warning: #c89e44;
  --color-warning-content: #2d2a24;
  --color-error: #be4f3b;
  --color-error-content: #fff0ec;
}

/* ----- Global ----- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  overflow-x: hidden;
}

section[id] {
  scroll-margin-top: 5rem;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3.5rem;
  z-index: 1001;
  background: var(--color-base-content);
  color: var(--color-base-100);
  padding: 0.6rem 0.9rem;
  border-radius: 0.5rem;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ----- Glassmorphism ----- */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

/* ----- Navbar ----- */
.navbar-glass {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, auto) minmax(0, auto);
  align-items: center;
  gap: 0.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.navbar-glass .navbar-start,
.navbar-glass .navbar-center,
.navbar-glass .navbar-end {
  min-width: 0;
}

.navbar-glass .navbar-start {
  justify-self: start;
}

.navbar-glass .navbar-center {
  justify-self: center;
  width: 100%;
}

.navbar-glass .navbar-center .menu {
  justify-content: center;
  flex-wrap: nowrap;
  overflow: hidden;
}

.navbar-glass .navbar-end {
  justify-self: end;
  flex-wrap: nowrap;
}

/* ----- Hero ----- */
.hero-gradient {
  background:
    radial-gradient(ellipse at 20% 50%, oklch(0.85 0.15 160 / 0.25) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, oklch(0.80 0.12 90 / 0.20) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, oklch(0.75 0.10 30 / 0.15) 0%, transparent 50%);
}

[data-theme="forest"] .hero-gradient {
  background:
    radial-gradient(ellipse at 20% 50%, oklch(0.30 0.10 160 / 0.35) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, oklch(0.25 0.08 90 / 0.25) 0%, transparent 50%);
}

[data-theme="bamboo"] .hero-gradient {
  background:
    radial-gradient(ellipse at 20% 50%, #b6d1a8 0%, transparent 55%),
    radial-gradient(ellipse at 80% 20%, #e4e5bd 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, #d4ba88 0%, transparent 55%);
}

/* ----- Animations ----- */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 oklch(0.65 0.20 160 / 0.5);
  }
  50% {
    box-shadow: 0 0 0 12px oklch(0.65 0.20 160 / 0);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(2rem) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes slide-out-right {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(2rem) scale(0.95);
  }
}

@keyframes bounce-in {
  0% { transform: scale(0); }
  50% { transform: scale(1.15); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

@keyframes typing-dot {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); }
}

@keyframes wiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-5deg); }
  75% { transform: rotate(5deg); }
}

.animate-fade-in-up {
  animation: fade-in-up 0.6s var(--transition-smooth) both;
}

.animate-fade-in-up-delay-1 {
  animation: fade-in-up 0.6s var(--transition-smooth) 0.1s both;
}

.animate-fade-in-up-delay-2 {
  animation: fade-in-up 0.6s var(--transition-smooth) 0.2s both;
}

.animate-fade-in-up-delay-3 {
  animation: fade-in-up 0.6s var(--transition-smooth) 0.3s both;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-bounce-in {
  animation: bounce-in 0.5s var(--transition-smooth) both;
}

.animate-wiggle:hover {
  animation: wiggle 0.4s ease-in-out;
}

/* ----- Scroll reveal (JS adds .revealed) ----- */
.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.6s var(--transition-smooth), transform 0.6s var(--transition-smooth);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Tour Cards ----- */
.tour-card {
  transition: transform 0.3s var(--transition-smooth), box-shadow 0.3s var(--transition-smooth);
}

.tour-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 20px 25px -5px oklch(0 0 0 / 0.08),
    0 8px 10px -6px oklch(0 0 0 / 0.04);
}

.tour-card:active,
.plan-item:active,
.tour-card.dragging,
.plan-item.dragging {
  opacity: 0.8;
  box-shadow: 0 18px 30px -12px oklch(0 0 0 / 0.25);
}

.plan-item {
  transition: transform 0.2s var(--transition-smooth), box-shadow 0.2s var(--transition-smooth);
}

.plan-item:hover {
  transform: translateY(-2px);
}

/* ----- Favorite Heart ----- */
.heart-btn svg {
  transition: transform 0.25s var(--transition-smooth);
}

.heart-btn:hover svg {
  transform: scale(1.2);
}

.heart-btn.is-favorite svg {
  fill: var(--panda-coral);
  color: var(--panda-coral);
}

/* ----- Chat Widget ----- */
.panda-chat-trigger {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1200;
  animation: pulse-glow 2.5s ease-in-out infinite;
  transition: transform 0.3s var(--transition-smooth);
}

.panda-chat-trigger:hover {
  transform: scale(1.1);
  animation: none;
}

.panda-chat-panel {
  position: fixed;
  bottom: 6rem;
  right: 1.5rem;
  width: var(--chat-width);
  height: var(--chat-height);
  max-height: calc(100vh - 8rem);
  max-width: calc(100vw - 2rem);
  z-index: 1200;
  border-radius: 1.5rem;
  overflow: hidden;
  /* display managed by Tailwind utility classes (hidden / flex flex-col) */
}

.panda-chat-panel.chat-opening {
  animation: slide-in-right 0.35s var(--transition-smooth) both;
}

.panda-chat-panel.chat-closing {
  animation: slide-out-right 0.25s var(--transition-smooth) both;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  scroll-behavior: smooth;
}

.admin-social-link {
  width: 1rem;
  height: 1rem;
}

.admin-social-link-btn {
  width: 2.125rem;
  height: 2.125rem;
  padding: 0;
}

.admin-social-link-btn .admin-social-link {
  pointer-events: none;
}

.chat-messages::-webkit-scrollbar {
  width: 4px;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: oklch(0.5 0 0 / 0.2);
  border-radius: 4px;
}

.chat-input-area {
  padding: 0.75rem 1rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* Typing indicator */
.typing-indicator span {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  margin: 0 1px;
}

.typing-indicator span:nth-child(1) { animation: typing-dot 1.4s infinite 0s; }
.typing-indicator span:nth-child(2) { animation: typing-dot 1.4s infinite 0.2s; }
.typing-indicator span:nth-child(3) { animation: typing-dot 1.4s infinite 0.4s; }

/* ----- Quick Reply Chips ----- */
.quick-reply {
  transition: all 0.2s var(--transition-smooth);
}

.quick-reply:hover {
  transform: translateY(-2px);
}

/* ----- Slot Pill Active State ----- */
.slot-pill {
  transition: all 0.3s var(--transition-smooth);
}

.slot-pill.active {
  background: oklch(0.45 0.15 160);
  color: white;
}

/* ----- Star Rating ----- */
.star-filled {
  color: var(--panda-gold);
  fill: var(--panda-gold);
}

/* ----- Section Divider ----- */
.section-divider {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--panda-green-light), transparent);
  border: none;
  margin: 0;
  opacity: 0.3;
}

/* ----- Section Headings ----- */
.section-heading {
  font-size: clamp(1.45rem, 3.3vw, 2.35rem);
  line-height: 1.15;
  font-weight: 800;
  text-wrap: balance;
}

.section-heading-icon {
  width: clamp(1.75rem, 2.8vw, 2.25rem);
  height: clamp(1.75rem, 2.8vw, 2.25rem);
  flex-shrink: 0;
}

/* ----- Footer Responsiveness ----- */
.site-footer {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  align-items: start;
  gap: clamp(1rem, 1.9vw, 1.8rem);
}

.site-footer-brand,
.site-footer-section {
  min-width: 0;
}

.site-footer-brand-mark {
  align-items: center;
}

.site-footer-brand-mark img {
  width: clamp(2.5rem, 4vw, 3rem);
  height: clamp(2.5rem, 4vw, 3rem);
  object-fit: contain;
}

.site-footer-brand-text {
  font-size: clamp(0.98rem, 2vw, 1.3rem);
  line-height: 1.2;
}

.site-footer .footer-title {
  text-wrap: balance;
  white-space: normal;
  margin-bottom: 0.65rem;
  font-size: clamp(0.98rem, 1.35vw, 1.12rem);
}

.site-footer .footer-title + * {
  word-break: break-word;
}

/* ----- Modal Responsiveness ----- */
.modal-responsive .modal-box {
  width: min(92vw, 680px);
  max-width: 92vw;
}

/* ----- FAQ Responsiveness ----- */
.faq-collapse {
  width: 100%;
}

.faq-question,
.faq-answer p {
  word-break: break-word;
  overflow-wrap: anywhere;
}

.faq-answer p {
  line-height: 1.5;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .faq-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ----- Logo Animation ----- */
.logo-img {
  transition: transform 0.3s var(--transition-smooth);
}

.logo-img:hover {
  transform: rotate(-5deg) scale(1.05);
}

.brand-lockup {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-lockup .brand-logo {
  width: clamp(2.1rem, 4vw, 3rem);
  height: clamp(2.1rem, 4vw, 3rem);
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-lockup .brand-title {
  font-size: clamp(1rem, 2.2vw, 1.45rem);
  line-height: 1.1;
  min-width: 0;
}

/* ----- Print ----- */
@media print {
  .navbar-glass,
  .panda-chat-trigger,
  .panda-chat-panel,
  .drawer-side {
    display: none !important;
  }

  body {
    font-size: 12pt;
  }

  .card {
    break-inside: avoid;
  }
}

/* ----- Mobile Adjustments ----- */
@media (max-width: 640px) {
  .navbar-glass {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.35rem;
  }

  .navbar-glass .navbar-center {
    display: none !important;
  }

  .brand-lockup .brand-title {
    font-size: 1.1rem;
  }

  .brand-lockup .brand-logo {
    width: 2.25rem;
    height: 2.25rem;
  }

  .panda-chat-panel {
    width: calc(100vw - 2rem);
    right: 1rem;
    bottom: 5rem;
    height: 60vh;
  }

  .panda-chat-trigger {
    bottom: 1rem;
    right: 1rem;
  }
}

@media (min-width: 641px) and (max-width: 1279px) {
  .navbar-glass {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .navbar-glass .navbar-center {
    display: none !important;
  }
}

@media (min-width: 1280px) {
  .navbar-glass {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 1fr) auto;
  }
}

/* ----- Tablet Adjustments ----- */
@media (min-width: 768px) and (max-width: 1023px) {
  :root {
    --chat-width: 390px;
    --chat-height: 560px;
  }

  .panda-chat-panel {
    width: min(92vw, 390px);
    height: min(calc(100vh - 9.25rem), var(--chat-height));
    right: 1.25rem;
    bottom: 5.5rem;
  }

  .panda-chat-trigger {
    bottom: 1.25rem;
    right: 1.25rem;
  }

  .chat-input-area {
    padding: 0.6rem 0.8rem;
  }

  .chat-messages {
    padding: 0.8rem;
  }

  .modal-responsive .modal-box {
    width: min(90vw, 660px);
    max-height: 82vh;
    overflow-y: auto;
  }

  .modal-responsive .modal-box .modal-action {
    margin-top: 0.75rem;
  }
}