:root {
  --primary: #356F73;
  --primary-hover: #2B5D61;
  --secondary: #7FA9A5;
  --dark: #172F35;
  --darker: #EAF1F0;

  --light-text: #26383C;
  --muted-text: #647579;

  --accent: #B4874A;
  --accent-soft: #F4EBDD;

  --danger: #B94A48;

  --border-color: #D5E1DF;
  --input-bg: #FFFFFF;
  --bot-message-bg: #FFFFFF;
  --user-message-bg: #356F73;

  --page-bg: #F7F9F8;
  --surface: #FFFFFF;
}

/* ============================================================
   GLOBAL
   ============================================================ */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background-color: var(--page-bg);
  color: var(--light-text);
  min-height: 100vh;

  font-family:
    "Inter",
    "Segoe UI",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;

  overflow-x: hidden;

  scrollbar-width: thin;
  scrollbar-color:
    var(--secondary)
    var(--darker);
}

body::-webkit-scrollbar {
  width: 8px;
}

body::-webkit-scrollbar-thumb {
  background-color: var(--secondary);
  border-radius: 6px;
}

body::-webkit-scrollbar-track {
  background-color: var(--darker);
}

/* ============================================================
   APPLICATION LAYOUT
   ============================================================ */

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ============================================================
   NAVIGATION
   ============================================================ */

.navbar {
  background-color: var(--dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.75rem 1.25rem;
  box-shadow: 0 2px 12px rgba(23, 47, 53, 0.08);
}

.navbar-brand {
  font-weight: 700;
  color: #FFFFFF !important;

  display: flex;
  align-items: center;

  text-decoration: none;
  letter-spacing: 0.15px;
}

.brand-name {
  color: #FFFFFF !important;
}

.navbar-text {
  color: #C9D9D7;
  font-size: 0.88rem;
}

/* ============================================================
   MEDGEROX NAVIGATION
   ============================================================ */

.top-navigation {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.top-navigation .nav-link {
  color: #F4F8F7 !important;

  font-weight: 500;
  font-size: 0.9rem;

  text-decoration: none;

  padding: 0.35rem 0.15rem;

  transition:
    color 0.2s ease,
    opacity 0.2s ease;
}

.top-navigation .nav-link:hover {
  color: #D9B979 !important;
}

.top-navigation .nav-link i {
  color: #D9B979 !important;
  margin-right: 5px;
}

/* ============================================================
   BRAND ICON
   ============================================================ */

.brand-icon {
  color: #D9B979;
  font-size: 1.2rem;
}

/* ============================================================
   BRAND LOGO
   ============================================================ */

.brand-logo {
  object-fit: contain;
  border-radius: 5px;

  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.brand-logo:hover {
  transform: scale(1.04);
  opacity: 0.92;
}

/* ============================================================
   CHAT CARD
   ============================================================ */

.chat-card {
  background-color: transparent;

  border: none;
  border-radius: 0;

  height: 100%;

  box-shadow: none;

  overflow: hidden;
}

.card-header,
.card-footer {
  background-color: rgba(255, 255, 255, 0.7);
  border-color: var(--border-color);
}

.card-footer {
  padding: 0.5rem 0.75rem;
  background-color: var(--darker);
}

/* ============================================================
   CHAT WINDOW
   ============================================================ */

.chat-window {
  min-height: calc(100vh - 140px);

  overflow-y: visible;

  padding: 1.4rem 1rem 150px;

  display: flex;
  flex-direction: column;

  gap: 1rem;

  background-color: transparent;
}

.chat-window::-webkit-scrollbar {
  display: none;
}

.chat-window::-webkit-scrollbar-thumb,
.chat-window::-webkit-scrollbar-track {
  display: none;
}

/* ============================================================
   MESSAGES
   ============================================================ */

.message {
  display: flex;

  margin-bottom: 1rem;

  align-items: flex-start;

  clear: both;
}

.user-message {
  margin-left: auto;
  margin-right: 0;

  align-self: flex-end;
}

.bot-message {
  margin-right: 0;
  margin-left: 0;

  align-self: flex-start;

  display: flex;
  align-items: flex-start;

  gap: 0.55rem;
}

/* ============================================================
   BOT AVATAR
   ============================================================ */

.message-avatar {
  display: none;
}

.bot-message .message-avatar {
  display: flex;

  width: 27px;
  height: 27px;

  border-radius: 50%;

  overflow: hidden;

  flex-shrink: 0;

  border: 1px solid var(--border-color);

  background-color: #FFFFFF;

  box-shadow:
    0 1px 4px rgba(23, 47, 53, 0.12);
}

.bot-message .message-avatar img {
  width: 100%;
  height: 100%;

  object-fit: cover;
}

/* ============================================================
   MESSAGE BUBBLES
   ============================================================ */

.message-bubble {
  border-radius: 0.8rem;

  padding: 0.7rem 0.9rem;

  position: relative;

  width: 100%;
  min-width: 100px;

  font-size: 1rem;

  line-height: 1.65;
}

.user-message .message-bubble {
  background-color: var(--user-message-bg);

  color: #FFFFFF;

  border-bottom-right-radius: 0.25rem;

  box-shadow:
    0 2px 7px rgba(53, 111, 115, 0.16);
}

.bot-message .message-bubble {
  background-color: transparent;

  color: var(--light-text);

  border: none;

  box-shadow: none;

  padding: 0;

  border-radius: 0;
}

.message-content {
  word-break: break-word;

  margin-bottom: 0.25rem;

  font-size: 1rem;

  line-height: 1.65;
}

.message-time {
  font-size: 0.6rem;

  opacity: 0.65;

  text-align: right;
}

/* ============================================================
   TYPING INDICATOR
   ============================================================ */

.typing-indicator {
  margin-bottom: 0.5rem;
}

.typing-dots {
  display: flex;

  justify-content: center;

  gap: 0.25rem;

  padding: 0.5rem;
}

.typing-dots span {
  width: 7px;
  height: 7px;

  background-color: var(--secondary);

  border-radius: 50%;

  animation:
    typing-dot
    1.4s infinite ease-in-out both;
}

.typing-dots span:nth-child(1) {
  animation-delay: 0s;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing-dot {
  0%,
  80%,
  100% {
    transform: scale(0.6);
    opacity: 0.55;
  }

  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ============================================================
   TOOL / RETRIEVAL INDICATOR
   ============================================================ */

.tool-indicator {
  margin-bottom: 0.5rem;
}

.tool-searching {
  display: flex;

  align-items: center;

  gap: 0.5rem;

  padding: 0.5rem;

  color: var(--primary);

  font-style: italic;

  font-size: 0.88rem;
}

.tool-message {
  color: var(--primary);

  font-weight: 500;
}

.search-dots {
  display: flex;

  gap: 0.2rem;
}

.search-dots span {
  width: 4px;
  height: 4px;

  background-color: var(--accent);

  border-radius: 50%;

  animation:
    search-pulse
    1.2s infinite ease-in-out both;
}

.search-dots span:nth-child(1) {
  animation-delay: 0s;
}

.search-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.search-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes search-pulse {
  0%,
  80%,
  100% {
    transform: scale(0.8);
    opacity: 0.45;
  }

  40% {
    transform: scale(1.2);
    opacity: 1;
  }
}

/* ============================================================
   INPUT AREA
   ============================================================ */

.form-control {
  background-color: var(--input-bg);

  border: 1px solid var(--border-color);

  color: var(--light-text);

  border-radius: 1.5rem;

  padding: 0.85rem 1.2rem;

  height: auto;

  font-size: 1rem;

  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.form-control::placeholder {
  color: #8A999B;
}

.form-control:focus {
  background-color: var(--input-bg);

  color: var(--light-text);

  border-color: var(--primary);

  box-shadow:
    0 0 0 0.22rem rgba(53, 111, 115, 0.14);
}

.input-group {
  border-radius: 1.5rem;

  overflow: hidden;
}

/* ============================================================
   SEND BUTTON
   ============================================================ */

.btn-send,
.chat-send-btn {
  background-color: var(--primary);

  color: #FFFFFF;

  border: none;

  border-radius: 50%;

  width: 40px;
  height: 40px;

  display: flex;

  align-items: center;
  justify-content: center;

  padding: 0;

  margin-left: 0.5rem;

  transition:
    background-color 0.2s ease,
    transform 0.15s ease;
}

.btn-send:hover,
.chat-send-btn:hover {
  background-color: var(--primary-hover);

  color: #FFFFFF;

  transform: translateY(-1px);
}

.btn-send i,
.chat-send-btn i {
  font-size: 0.88rem;
}

/* ============================================================
   FOOTER
   ============================================================ */

footer {
  background-color: var(--dark) !important;

  border-top: 1px solid rgba(255, 255, 255, 0.08);

  color: #FFFFFF !important;

  text-align: center;

  padding: 0.6rem 0;

  font-size: 0.75rem;

  margin-bottom: 92px;

  position: relative;

  z-index: 101;
}

.leadership-label {
  color: #BFCFCD !important;

  font-size: 0.73rem;

  font-weight: 500;

  letter-spacing: 0.3px;
}

.leadership-name {
  color: #FFFFFF !important;

  font-size: 0.95rem;

  font-weight: 700;

  margin-top: 2px;
}

/* ============================================================
   TOOLS USED
   ============================================================ */

.tools-used {
  font-size: 0.7rem;

  color: var(--primary);

  margin-top: 0.3rem;

  padding: 0.25rem 0.45rem;

  background-color: rgba(53, 111, 115, 0.07);

  border-radius: 0.3rem;

  border: 1px solid var(--border-color);
}

/* ============================================================
   MARKDOWN CONTENT
   ============================================================ */

.message-content h1,
.message-content h2,
.message-content h3 {
  color: var(--primary);

  margin-top: 0.8rem;
  margin-bottom: 0.5rem;

  line-height: 1.25;
}

.message-content h1 {
  font-size: 1.2rem;

  font-weight: 700;
}

.message-content h2 {
  font-size: 1.1rem;

  font-weight: 650;
}

.message-content h3 {
  font-size: 1rem;

  font-weight: 600;
}

.message-content h5 {
  font-size: 1rem;

  font-weight: 600;

  margin-top: 0;

  margin-bottom: 0.4rem;

  color: var(--primary);
}

.message-content h5 + p {
  font-size: 0.8rem;

  margin-bottom: 0.4rem;
}

.message-content ul,
.message-content ol {
  margin: 0.5rem 0;

  padding-left: 1.5rem;
}

.message-content li {
  margin: 0.25rem 0;

  line-height: 1.45;

  font-size: 1rem;
}

.message-content p {
  margin: 0.5rem 0;

  line-height: 1.55;

  font-size: 1rem;
}

.message-content blockquote {
  border-left: 4px solid var(--accent);

  margin: 0.8rem 0;

  padding: 0.75rem 1rem;

  background-color: var(--accent-soft);

  border-radius: 0 0.5rem 0.5rem 0;

  font-style: italic;

  font-size: 0.9rem;
}

.message-content code {
  background-color: rgba(23, 47, 53, 0.07);

  padding: 0.125rem 0.375rem;

  border-radius: 0.25rem;

  font-family: "Courier New", monospace;

  font-size: 0.875rem;

  color: var(--primary);
}

.message-content pre {
  background-color: rgba(23, 47, 53, 0.05);

  padding: 0.8rem;

  border-radius: 0.4rem;

  overflow-x: auto;

  margin: 0.5rem 0;
}

.message-content hr {
  border: none;

  border-top: 1px solid var(--border-color);

  margin: 1rem 0;
}

.message-content strong,
.message-content b {
  color: var(--primary);

  font-weight: 650;
}

.message-content em,
.message-content i {
  font-style: italic;

  color: var(--light-text);
}

/* ============================================================
   STREAMING RESPONSE
   ============================================================ */

.streaming-content {
  position: relative;
}

.streaming-content::after {
  content: "|";

  color: var(--accent);

  animation:
    blink
    1s infinite;

  font-weight: bold;

  margin-left: 2px;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }

  51%,
  100% {
    opacity: 0;
  }
}

/* ============================================================
   MAIN CONTAINER
   ============================================================ */

.container.py-3 {
  padding: 0.5rem !important;
}

/* ============================================================
   CHAT LAYOUT
   ============================================================ */

.chat-main-container {
  max-width: 800px;

  margin: 0 auto;

  width: 100%;

  position: relative;
}

.chat-input-container {
  position: fixed;

  bottom: 0;

  left: 50%;

  transform: translateX(-50%);

  max-width: 800px;

  width: 100%;

  background-color: var(--page-bg);

  padding: 1rem;

  z-index: 100;

  border-top: none;
}

.chat-input-wrapper {
  width: 100%;
}

/* ============================================================
   MOBILE
   ============================================================ */

@media (max-width: 768px) {

  .container-fluid {
    padding: 0;
  }

  .container {
    padding: 0.5rem;
  }

  h4.text-center {
    font-size: 1.25rem;

    margin-bottom: 1rem;
  }

  .navbar {
    padding: 0.35rem 0.6rem;
  }

  .navbar-brand {
    font-size: 1.05rem;
  }

  .navbar-text {
    font-size: 0.78rem;
  }

  .top-navigation {
    gap: 0.7rem;
  }

  .top-navigation .nav-link {
    font-size: 0.78rem;
  }

  .chat-window {
    min-height: calc(100vh - 200px);

    padding: 0.8rem 0.75rem 150px;

    gap: 0.45rem;
  }

  .chat-card {
    margin: 0;

    border-radius: 0.5rem;
  }

  .message {
    margin-bottom: 0.45rem;
  }

  .bot-message {
    gap: 0.4rem;

    width: 100%;
  }

  .user-message {
    margin-left: auto;
  }

  .bot-message .message-avatar {
    width: 21px;
    height: 21px;
  }

  .message-bubble {
    padding: 0.45rem 0.6rem;

    border-radius: 0.65rem;

    font-size: 0.88rem;
  }

  .message-avatar {
    display: none;
  }

  .card-footer {
    padding: 0.4rem;
  }

  .form-control {
    font-size: 1rem;

    padding: 0.55rem 0.8rem;
  }

  .btn {
    padding: 0.5rem 0.75rem;

    min-width: auto;
  }

  .chat-input-container {
    max-width: 100%;

    left: 0;

    transform: none;

    width: 100%;

    padding: 0.75rem;
  }

  footer {
    margin-bottom: 100px;
  }
}

/* ============================================================
   SMALL MOBILE
   ============================================================ */

@media (max-width: 480px) {

  .message {
    margin-bottom: 0.4rem;
  }

  .bot-message {
    width: 100%;
  }

  .message-bubble {
    padding: 0.45rem 0.6rem;

    font-size: 0.875rem;

    min-width: 80px;
  }

  .chat-window {
    padding: 0.55rem;

    gap: 0.4rem;

    padding-bottom: 150px;
  }

  h4.text-center {
    font-size: 1.1rem;
  }

  .top-navigation {
    gap: 0.45rem;
  }

  .top-navigation .nav-link {
    font-size: 0.74rem;
  }

  footer {
    margin-bottom: 105px;
  }

  .leadership-label {
    font-size: 0.68rem;
  }

  .leadership-name {
    font-size: 0.84rem;
  }
}