/* ───────── ROOT SYSTEM ─────────────────────── */
:root {
  --radius-pill: 9999px;
  --radius-lg: 28px;
  --glass: rgba(255, 255, 255, 0.66);
  --glass-dark: rgba(28, 28, 30, 0.64);
  --border: rgba(255, 255, 255, 0.34);
  --border-dark: rgba(255, 255, 255, 0.08);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.05);

  /* brand accent (deep indigo) */
  --accent: #008000;
  --accent-hover: #4d4fab;

  --pink: #FF2D55;
  --purple: #BF5AF2;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont,
    'SF Pro Text', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ───────── PAGE & WRAPPER ───────────────────── */
html,
body {
  height: 100%;
  margin: 0;
  font: 16px/1.5 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  background: linear-gradient(135deg, #fafafa 0%, #eceff5 100%);
  color: #0d0d0d;
}

#mentor-wrap {
  height: 100%;
  padding: 0 10px;
  box-sizing: border-box;
  overflow-x: hidden;
}

/* ───────── CHAT FRAME ───────────────────────── */
#chat {
  position: relative;
  height: 100%;
  max-width: 100%;
  margin: auto;
  display: flex;
  flex-direction: column;
  padding: 10px 0 0;
  gap: 20px;
}

/* ───────── MESSAGE STREAM ───────────────────── */
#messages {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 0 10px 26px;
  box-sizing: border-box;
}
#messages::-webkit-scrollbar {
  width: 6px;
}
#messages::-webkit-scrollbar-thumb {
  background: rgba(60, 60, 67, 0.18);
  border-radius: 3px;
}

/* Chat bubbles */
@keyframes floatIn {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
.message {
  width: fit-content;
  max-width: 90%;
  padding: 16px 24px;
  border-radius: var(--radius-lg);
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
  animation: floatIn 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  opacity: 0;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.user-message {
  align-self: flex-end;
  background: #27b2cd;
  color: #fff;
  border-bottom-right-radius: 8px;
  font-size: 14px;
  border: 1px solid #27b2cd;
  margin-top: 15px;
  margin-bottom: 15px;
}
.bot-message {
  align-self: flex-start;
  color: #201e57; /* AI text colour */
  border-bottom-left-radius: 8px;
  font-size: 14px;
}

/* AI formatting helpers */
.ai-heading {
  font-weight: 700;
  margin: 0.6em 0 0.25em;
}
.ai-body {
  margin-bottom: 0.55em;
}
.ai-bullet {
  margin: 0 0 0.4em 1.2em;
  list-style: disc;
}

/* Bookmark pill inside a bubble */
.bookmark-link {
  display: inline-block;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  background: none;
  border: 1px solid #d057a0;
  color: #d057a0;
  cursor: pointer;
  transition: all 0.25s;
  position: relative; /* For tooltip positioning */
}
.bookmark-link:hover {
  background: #d057a0;
  color: #fff;
}

/* Tooltip Styles */
.tooltip-container {
  position: relative;
  display: inline-block;
}

.tooltip-text {
  visibility: hidden;
  width: 250px; /* Reduced width to prevent overflow */
  max-width: 80vw; /* Ensure tooltip doesn't exceed viewport width */
  background-color: rgba(0, 0, 0, 0.85);
  color: #fff;
  text-align: left;
  border-radius: 6px;
  padding: 10px;
  position: absolute;
  z-index: 10000; /* Increased z-index to appear above all elements */
  bottom: 125%; /* Position above the element */
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.tooltip-container:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

.tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%; /* At the bottom of the tooltip */
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0.85) transparent transparent transparent;
}

/* make bookmark grid bubble transparent & border-less */
.bookmark-bubble {
  align-self: center;
  background: transparent;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  padding: 0;
  margin-top: 20px;
  margin-bottom: 20px;
}

/* Loader dots */
.loader {
  display: flex;
  align-items: center;
}
.dot {
  width: 8px;
  height: 8px;
  margin-right: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.9;
  animation: bounce 1.2s infinite;
}
@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-14px);
  }
  60% {
    transform: translateY(-7px);
  }
}
.dot:nth-child(2) {
  animation-delay: 0.1s;
}
.dot:nth-child(3) {
  animation-delay: 0.2s;
}

/* ───────── BOOKMARK CIRCLE GRID ─────────────── */
.bookmark-circle {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0.5em;
  border-radius: 50%;
  padding: 1.1em;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  color: #fff;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.14);
  transition: transform 0.25s, box-shadow 0.25s;
}
.bookmark-circle:hover {
  transform: scale(1.07);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.18);
}
.bookmark-circle:nth-child(3n + 1) {
  background: linear-gradient(
    135deg,
    rgb(176, 48, 133) 0%,
    rgb(226, 109, 176) 50%,
    rgb(245, 152, 203) 100%
  );
}
.bookmark-circle:nth-child(3n + 2) {
  background: linear-gradient(
    135deg,
    rgb(232, 110, 78) 0%,
    rgb(254, 160, 127) 50%,
    rgb(254, 184, 152) 100%
  );
}
.bookmark-circle:nth-child(3n) {
  background: linear-gradient(
    135deg,
    rgb(30, 152, 176) 0%,
    rgb(61, 192, 216) 50%,
    rgb(46, 209, 240) 100%
  );
}
.bookmark-number {
  font-size: 1.5em;
  font-weight: 700;
  margin-bottom: 10px;
  margin-top: 10px;
}
.bookmark-title {
  font-size: 0.85em;
  line-height: 1.25em;
  word-wrap: break-word;
}
.close-icon {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-weight: 700;
  line-height: 20px;
  text-align: center;
  color: #201e57;
  cursor: pointer;
  transition: background 0.2s;
}
.close-icon:hover {
  background: rgba(0, 0, 0, 0.12);
}

/* ───────── INPUT AREA ───────────────────────── */
#chatBox {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.input-container {
  position: relative;
  width: 100%;
}
#userInput {
  width: 100%;
  min-height: 46px;
  max-height: 140px;
  padding: 16px 96px 16px 22px;
  font: 500 15px/1.4 var(--font-sans);
  color: #0d0d0d;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  resize: none;
  overflow-y: auto;
  outline: none;
  transition: box-shadow 0.25s, background 0.25s;
}
#userInput:focus {
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
#sendButton {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  height: 40px;
  padding: 0 26px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: none;
  border-radius: var(--radius-pill);
  background: #201e57;
  color: #fff;
  cursor: pointer;
  transition: background 0.25s, transform 0.15s;
}
#sendButton:hover {
  background: var(--accent-hover);
}
#sendButton:active {
  transform: translateY(-50%) scale(0.96);
}

/* ───────── BOOKMARK FILTERS ───────────────────── */
.bookmark-filters {
  display: flex;
  align-items: center;
  gap: 8px;
}
.bookmark-filters span {
  font-size: 14px;
  font-weight: 600;
  color: #201e57;
}
.filter-btn {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-pill);
  background: #e0e0e0;
  color: #201e57;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.filter-btn:hover {
  background: var(--accent-hover);
  color: #fff;
}
.filter-btn.active {
  background: var(--accent);
  color: #fff;
}

/* ───────── SAVED! TOAST ─────────────────────── */
@keyframes toastFade {
  0% {
    transform: translateX(-50%) translateY(20px);
    opacity: 0;
  }
  10% {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
  80% {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateX(-50%) translateY(-10px);
    opacity: 0;
  }
}
.toast {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  pointer-events: none;
  animation: toastFade 2.5s ease forwards;
  z-index: 9999;
}

/* ───────── DARK MODE ───────────────────────── */
@media (prefers-color-scheme: dark) {
  body {
    background: #000;
    color: #f2f2f7;
  }
  #userInput,
  .message {
    background: var(--glass-dark);
    border: 1px solid var(--border-dark);
  }
  .bot-message {
    color: var(--accent);
  }
  #userInput {
    color: #f2f2f7;
  }
  #sendButton {
    background: #fff;
    color: #000;
  }
  #sendButton:hover {
    background: #e5e5e5;
  }
  .bookmark-filters span {
    color: #fff;
  }
  #showBookmarksButton {
    color: #fff;
    opacity: 0.75;
  }
  .close-icon {
    color: var(--accent);
  }
  .toast {
    background: #fff;
    color: #000;
  }

  /* Ensure tooltips also adapt to dark mode */
  .tooltip-text {
    background-color: rgba(255, 255, 255, 0.85);
    color: #000;
  }
  .tooltip-text::after {
    border-color: rgba(255, 255, 255, 0.85) transparent transparent transparent;
  }
}

/* ───────── RESPONSIVE TWEAKS ───────────────── */
@media (max-width: 480px) {
  #chat {
    padding: 0px;
  }
  /* — Chat bubbles fill the width instead of shrinking */
  .message {
    width: 100%;
    max-width: 100%;
  }
  .user-message,
  .bot-message {
    align-self: stretch;
  }
  #userInput {
    font-size: 16px;
  }
  .bookmark-filters > * {
    font-size: 12px;
  }
  .bookmark-bubble > div {
    justify-content: center;
  }
  .bookmark-circle {
    flex: 0 0 130px;
    width: 130px;
    height: 130px;
    margin: 6px;
  }
  .bookmark-number {
    margin-bottom: 5px;
  }

  /* Adjust tooltip width for smaller screens */
  .tooltip-text {
    width: 90vw;
    max-width: none;
    left: 50%;
    transform: translateX(-50%);
  }
}

/* ───────── TAGS FOR BOOKMARKS ───────────────── */
.bookmark-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  justify-content: center;
}
.bookmark-tag-pill {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  background: none;
  border: 1px solid #d057a0;
  color: #d057a0;
  cursor: default;
}

/* ───────── POPUP STYLING: PREMIUM, FLUID, FUN ───────── */
@keyframes popupFadeIn {
  0% {
    transform: translateY(20px) scale(0.9);
    opacity: 0;
  }
  100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.popupOverlay {
  position: fixed;
  z-index: 9998;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: none;
  align-items: center;
  justify-content: center;
  animation: popupFadeIn 0.3s ease forwards;
}

.popupWindow {
  background: linear-gradient(135deg, #fff 0%, #f9f9ff 100%);
  border: 0;
  border-radius: 16px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(12px);
  padding: 26px 24px 20px;
  min-width: 320px;
  max-width: 90%;
  color: #0d0d0d;
  position: relative;
  animation: popupFadeIn 0.35s ease-out forwards;
  transform: translateY(20px);
  opacity: 0;
}
.popupTitle {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #201e57;
}
.popupSubtitle {
  font-size: 14px;
  color: #555;
  margin-bottom: 16px;
}
.popupLabel {
  font-size: 14px;
  margin: 10px 0 6px;
  color: #201e57;
  font-weight: 600;
}
.popupSelect,
.popupInput {
  width: 100%;
  padding: 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  font-family: var(--font-sans);
  font-size: 14px;
  outline: none;
  transition: box-shadow 0.25s, background 0.25s;
}
.popupSelect:focus,
.popupInput:focus {
  background: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.popupButtons {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
}
.popupButton {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  background: #201e57;
  color: #fff;
  transition: background 0.2s, transform 0.2s;
}
.popupButton:hover {
  background: var(--accent-hover);
}
.popupButton:active {
  transform: scale(0.96);
}
.popupClose {
  position: absolute;
  top: 14px;
  right: 14px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  background: #201e57;
  border: none;
  font-size: 18px;
  line-height: 18px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.popupClose:hover {
  background: var(--accent-hover);
}