/* ========================================================================
   Green University — AI & Smart Components
   Chatbot · Interactive Map · Virtual Tour · Admission Assistant
   ======================================================================== */

/* ========== AI CHATBOT ========== */
.grnu-chat {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  font-family: var(--grnu-font-body);
}

.grnu-chat__toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--grnu-primary) 0%, var(--grnu-secondary) 100%);
  color: var(--grnu-white);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(15, 106, 68, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--grnu-transition), box-shadow var(--grnu-transition);
}

.grnu-chat__toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(15, 106, 68, 0.5);
}

.grnu-chat__toggle svg {
  width: 28px;
  height: 28px;
}

.grnu-chat__window {
  position: absolute;
  bottom: 72px;
  right: 0;
  width: 380px;
  max-width: calc(100vw - 2rem);
  height: 480px;
  max-height: 70vh;
  background: var(--grnu-white);
  border-radius: var(--grnu-radius);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.96);
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
}

.grnu-chat--open .grnu-chat__window {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.grnu-chat__header {
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--grnu-dark) 0%, var(--grnu-primary) 100%);
  color: var(--grnu-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.grnu-chat__title { font-size: 1rem; font-weight: 600; margin: 0; }

.grnu-chat__close {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0.25rem;
  opacity: 0.9;
  transition: opacity var(--grnu-transition);
}

.grnu-chat__close:hover { opacity: 1; }

.grnu-chat__messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.grnu-chat__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 1rem 0.75rem;
  border-bottom: 1px solid var(--grnu-border);
}

.grnu-chat__topic {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  background: var(--grnu-bg);
  border: 1px solid var(--grnu-border);
  border-radius: 999px;
  color: var(--grnu-text);
  cursor: pointer;
  transition: all var(--grnu-transition);
}

.grnu-chat__topic:hover {
  background: rgba(15, 106, 68, 0.08);
  border-color: var(--grnu-primary);
  color: var(--grnu-primary);
}

.grnu-chat__msg {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--grnu-radius-sm);
  font-size: 0.9375rem;
  line-height: 1.5;
  animation: grnu-msg-in 0.3s ease;
}

@keyframes grnu-msg-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.grnu-chat__msg--bot {
  align-self: flex-start;
  background: var(--grnu-bg);
  color: var(--grnu-text);
  border-bottom-left-radius: 4px;
}

.grnu-chat__msg--user {
  align-self: flex-end;
  background: var(--grnu-primary);
  color: var(--grnu-white);
  border-bottom-right-radius: 4px;
}

.grnu-chat__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 1rem 0.75rem;
  border-top: 1px solid var(--grnu-border);
}

.grnu-chat__topic {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  background: var(--grnu-bg);
  border: 1px solid var(--grnu-border);
  border-radius: 999px;
  color: var(--grnu-text);
  cursor: pointer;
  transition: all var(--grnu-transition);
}

.grnu-chat__topic:hover {
  border-color: var(--grnu-primary);
  color: var(--grnu-primary);
}

.grnu-chat__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 1rem 0.75rem;
  border-bottom: 1px solid var(--grnu-border);
}

.grnu-chat__topic {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  background: var(--grnu-bg);
  border: 1px solid var(--grnu-border);
  border-radius: 999px;
  color: var(--grnu-text);
  cursor: pointer;
  transition: all var(--grnu-transition);
}

.grnu-chat__topic:hover {
  background: rgba(15, 106, 68, 0.08);
  border-color: var(--grnu-primary);
  color: var(--grnu-primary);
}

.grnu-chat__input-wrap {
  padding: 1rem;
  border-top: 1px solid var(--grnu-border);
  display: flex;
  gap: 0.5rem;
}

.grnu-chat__input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--grnu-border);
  border-radius: var(--grnu-radius-sm);
  font-size: 0.9375rem;
  transition: border-color var(--grnu-transition);
}

.grnu-chat__input:focus {
  outline: none;
  border-color: var(--grnu-primary);
}

.grnu-chat__send {
  padding: 0.75rem 1rem;
  background: var(--grnu-primary);
  color: var(--grnu-white);
  border: none;
  border-radius: var(--grnu-radius-sm);
  cursor: pointer;
  transition: background var(--grnu-transition), transform var(--grnu-transition);
}

.grnu-chat__send:hover {
  background: var(--grnu-secondary);
  transform: translateY(-2px);
}

@media (max-width: 480px) {
  .grnu-chat__window { width: calc(100vw - 1rem); right: -0.5rem; }
}

/* ========== INTERACTIVE CAMPUS MAP ========== */
.grnu-interactive-map {
  position: relative;
  width: 100%;
}

.grnu-interactive-map .grnu-map__placeholder {
  position: relative;
  overflow: visible;
}

.grnu-interactive-map .grnu-map-canvas__markers {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.grnu-interactive-map .grnu-map-marker {
  pointer-events: auto;
}

.grnu-map-interactive { padding: var(--grnu-section-padding) 2rem; background: var(--grnu-bg); }

.grnu-map-interactive .grnu-section__title { margin-bottom: 0.5rem; }

.grnu-map-interactive .grnu-section__lead { margin-bottom: 2rem; }

.grnu-map-canvas {
  position: relative;
  aspect-ratio: 16/10;
  max-width: 900px;
  margin: 0 auto 2rem;
  background: linear-gradient(135deg, rgba(15, 106, 68, 0.06) 0%, rgba(63, 175, 108, 0.1) 100%);
  border-radius: var(--grnu-radius);
  border: 2px solid var(--grnu-border);
  overflow: hidden;
}

.grnu-map-canvas__bg {
  position: absolute;
  inset: 0;
  background: url("https://images.unsplash.com/photo-1562774053-701939374585?w=900&q=60") center/cover;
  opacity: 0.4;
}

.grnu-map-canvas__markers { position: absolute; inset: 0; }

.grnu-map-marker {
  position: absolute;
  width: 44px;
  height: 44px;
  background: var(--grnu-white);
  border: 3px solid var(--grnu-primary);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: transform var(--grnu-transition), box-shadow var(--grnu-transition);
}

.grnu-map-marker:hover {
  transform: scale(1.15);
  box-shadow: 0 6px 20px rgba(15, 106, 68, 0.3);
}

.grnu-map-marker--active { border-color: var(--grnu-secondary); background: var(--grnu-secondary); }

.grnu-map-popup {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, -12px);
  min-width: 200px;
  background: var(--grnu-white);
  padding: 1rem 1.25rem;
  border-radius: var(--grnu-radius-sm);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  border: 1px solid var(--grnu-border);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
  z-index: 10;
}

.grnu-map-marker:hover .grnu-map-popup,
.grnu-map-marker--active .grnu-map-popup {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -16px);
}

.grnu-map-popup__title { font-size: 1rem; font-weight: 600; margin: 0 0 0.5rem; color: var(--grnu-text); }

.grnu-map-popup__desc { font-size: 0.875rem; color: var(--grnu-text-muted); margin: 0; line-height: 1.4; }

.grnu-map-3d-placeholder {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.875rem;
  color: var(--grnu-text-muted);
}

/* ========== VIRTUAL CAMPUS TOUR ========== */
.grnu-tour {
  padding: var(--grnu-section-padding) 2rem;
  background: var(--grnu-white);
}

.grnu-tour__wrap { max-width: 1200px; margin: 0 auto; }

.grnu-tour__layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: start;
}

.grnu-tour__video-wrap {
  position: sticky;
  top: 100px;
}

.grnu-tour__player {
  position: relative;
  aspect-ratio: 16/10;
  border-radius: 16px;
  overflow: hidden;
  background: var(--grnu-dark);
}

.grnu-tour__viewer {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.grnu-tour__play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 61, 46, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.3s;
}

.grnu-tour__play-overlay:hover { background: rgba(11, 61, 46, 0.6); }

.grnu-tour__play-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.5rem;
  background: var(--grnu-white);
  color: var(--grnu-primary);
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--grnu-transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.grnu-tour__play-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 28px rgba(15, 106, 68, 0.25);
}

.grnu-tour__play-icon {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grnu-primary);
  color: var(--grnu-white);
  border-radius: 50%;
}

.grnu-tour__play-icon svg { width: 14px; height: 14px; margin-left: 2px; }

.grnu-tour__play-overlay.grnu-tour__play-overlay--hidden { display: none; }

.grnu-tour__fullscreen {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  padding: 0;
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 10px;
  color: var(--grnu-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  backdrop-filter: blur(8px);
}

.grnu-tour__fullscreen:hover {
  background: rgba(255,255,255,0.35);
}

.grnu-tour__fullscreen svg { width: 18px; height: 18px; }

.grnu-tour__thumbs {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: thin;
}

.grnu-tour__thumbs::-webkit-scrollbar { height: 4px; }

.grnu-tour__thumb {
  flex: 0 0 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
  background: var(--grnu-white);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.grnu-tour__thumb:hover { border-color: rgba(15, 106, 68, 0.3); }

.grnu-tour__thumb--active {
  border-color: var(--grnu-primary);
  box-shadow: 0 2px 12px rgba(15, 106, 68, 0.2);
}

.grnu-tour__thumb img {
  width: 100%;
  height: 56px;
  object-fit: cover;
}

.grnu-tour__thumb span {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--grnu-text-muted);
  padding: 0.35rem 0.25rem;
  text-align: center;
  line-height: 1.2;
}

.grnu-tour__info { padding-top: 0.5rem; }

.grnu-tour__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--grnu-dark);
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.grnu-tour__lead {
  font-size: 1rem;
  color: var(--grnu-text-muted);
  line-height: 1.7;
  margin: 0 0 2rem;
}

.grnu-tour__highlights {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.grnu-tour__highlight {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--grnu-text);
}

.grnu-tour__highlight-icon {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grnu-bg);
  color: var(--grnu-primary);
  border-radius: 8px;
}

.grnu-tour__highlight-icon svg { width: 14px; height: 14px; }

.grnu-tour__note {
  font-size: 0.875rem;
  color: var(--grnu-text-muted);
  line-height: 1.6;
  margin: 1.5rem 0 0;
  padding: 1rem 1.25rem;
  background: var(--grnu-bg);
  border-radius: 10px;
  border-left: 4px solid var(--grnu-primary);
}

@media (max-width: 900px) {
  .grnu-tour__layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .grnu-tour__video-wrap { position: static; }

  .grnu-tour__info { order: -1; text-align: center; }

  .grnu-tour__highlights { flex-direction: row; justify-content: center; flex-wrap: wrap; }

  .grnu-tour__note { text-align: center; }
}

@media (max-width: 480px) {
  .grnu-tour__thumb { flex: 0 0 80px; }
  .grnu-tour__thumb img { height: 46px; }
}

/* ========== AI ADMISSION ASSISTANT ========== */
.grnu-ai-apply { padding: var(--grnu-section-padding) 2rem; background: var(--grnu-white); }

.grnu-ai-apply .grnu-section__lead { margin-bottom: 2rem; }

.grnu-steps {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.grnu-step {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--grnu-text-muted);
}

.grnu-step__num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--grnu-bg);
  border: 2px solid var(--grnu-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  transition: all var(--grnu-transition);
}

.grnu-step--active .grnu-step__num,
.grnu-step--done .grnu-step__num {
  background: var(--grnu-primary);
  border-color: var(--grnu-primary);
  color: var(--grnu-white);
}

.grnu-step--done .grnu-step__num { background: var(--grnu-secondary); border-color: var(--grnu-secondary); }

.grnu-step__line {
  width: 40px;
  height: 2px;
  background: var(--grnu-border);
}

.grnu-step--done + .grnu-step .grnu-step__line,
.grnu-step--done .grnu-step__line { background: var(--grnu-secondary); }

.grnu-ai-form { max-width: 560px; margin: 0 auto; }

.grnu-ai-form__pane {
  display: none;
  animation: grnu-pane-in 0.4s ease;
}

.grnu-ai-form__pane--active { display: block; }

@keyframes grnu-pane-in {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

.grnu-ai-form__actions {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
}

.grnu-ai-form__btn--back {
  background: var(--grnu-bg);
  color: var(--grnu-text);
  border: 1px solid var(--grnu-border);
}

.grnu-ai-form__btn--back:hover { border-color: var(--grnu-primary); color: var(--grnu-primary); }

.grnu-ai-form__summary {
  background: var(--grnu-bg);
  padding: 1.5rem;
  border-radius: var(--grnu-radius-sm);
  margin-bottom: 1.5rem;
}

.grnu-ai-form__summary-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 0.9375rem;
}

.grnu-ai-form__summary-row strong { color: var(--grnu-text); }

.grnu-ai-form__summary-row span { color: var(--grnu-text-muted); }

@media (max-width: 600px) {
  .grnu-steps { flex-wrap: wrap; justify-content: flex-start; }
  .grnu-step__line { display: none; }
}