/* =====================================================
   static/chat.css - DARK CHAT UI + MULTI-THEME SUPPORT
   ===================================================== */

:root {
  --bg: #0f1416;
  --panel: #111417;
  --muted: #9aa4a6;
  --accent: #1db954; /* default neon-green */
}

/* GLOBAL */
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: #e6eef0;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ============================
        SIDEBAR (LEFT)
   ============================ */
.sidebar {
  width: 300px;
  background: #0c0f10;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  padding: 16px;
  box-sizing: border-box;
  transition: 0.25s ease;
}

/* Sidebar hover glow */
.sidebar:hover {
  box-shadow: 0 0 14px rgba(0, 255, 150, 0.2);
}

.sidebar-top {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.new-chat {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(255, 255, 255, 0.07);
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.2s;
}

.new-chat:hover {
  background: rgba(255,255,255,0.08);
}

.threads-list {
  margin-top: 12px;
  overflow: auto;
  max-height: 75vh;
}

.thread-item {
  padding: 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  margin-bottom: 8px;
  cursor: pointer;
  transition: 0.2s;
}

.thread-item:hover {
  background: rgba(255, 255, 255, 0.12);
}

.thread-title {
  font-weight: 600;
  color: #eaeaea;
}

/* ============================
          MAIN CHAT AREA
   ============================ */
.main-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.chat-header {
  padding: 24px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.hero {
  padding: 24px 32px;
  text-align: center;
}

.hero h2 {
  font-size: 28px;
  margin-bottom: 8px;
  color: #fff;
}

.hero p {
  color: #c3c8cb;
  margin: 0;
}

/* ============================
            MESSAGES
   ============================ */
.messages {
  flex: 1;
  padding: 20px 32px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-state {
  opacity: 0.6;
  text-align: center;
  padding: 40px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
}

.message-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.message {
  max-width: 70%;
  padding: 14px;
  border-radius: 14px;
  line-height: 1.4;
  animation: fadeIn 0.25s ease;
}

/* User ↔ Bot alignment FIXED */
.from-user {
  justify-content: flex-end !important;
  text-align: right;
}

.from-assistant {
  justify-content: flex-start !important;
  text-align: left;
}

.from-user .message {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.from-assistant .message {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-bottom-left-radius: 2px;
}

/* Fade animation */
@keyframes fadeIn {
  from {opacity: 0; transform: translateY(5px);}
  to {opacity: 1; transform: translateY(0);}
}

/* TYPING INDICATOR */
.typing-indicator {
  display: inline-block;
  width: 40px;
  height: 20px;
}

.typing-indicator span {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 4px;
  animation: blink 1.4s infinite both;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
  0% {opacity: .2;}
  20% {opacity: 1;}
  100% {opacity: .2;}
}


/* ============================
           COMPOSER BOX
   ============================ */
.composer {
  display: flex;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid rgba(255,255,255,0.07);
  backdrop-filter: blur(6px);
}

#composer-input {
  flex: 1;
  border-radius: 12px;
  padding: 12px;
  resize: none;
  background: #0d1214;
  color: #e6eef0;
  border: 1px solid rgba(255,255,255,0.07);
}

#send-btn {
  width: 56px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: #04110a;
  font-weight: 700;
  cursor: pointer;
}

/* =====================================================
     THEME BACKGROUNDS — EMBEDDED SVG (no images needed)
   ===================================================== */

/* 🏡 Real Estate */
.chat-theme-real-estate {
  --accent:#2b9bd3;
  background:
    linear-gradient(135deg, rgba(10,18,22,0.85), rgba(15,31,43,0.85)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='800' height='600'><rect width='100%' height='100%' fill='%230a1216'/><path d='M0 400 L200 310 L350 350 L500 270 L650 330 L800 260 L800 600 L0 600 Z' fill='%23172a36' opacity='0.45'/></svg>");
  background-size: cover;
}

/* 🎓 Student Mentor */
.chat-theme-student-mentor {
  --accent:#1fd65f;
  background:
    linear-gradient(135deg, rgba(10,20,12,0.85), rgba(16,41,26,0.85)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='800' height='600'><rect width='100%' height='100%' fill='%230c1e14'/><circle cx='260' cy='320' r='120' fill='%231fd65f' opacity='0.08'/></svg>");
  background-size: cover;
}

/* 💪 Fitness */
.chat-theme-fitness-coach {
  --accent:#ff5a5f;
  background:
    linear-gradient(135deg, rgba(32,12,12,0.85), rgba(90,18,18,0.85)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='800' height='600'><rect width='100%' height='100%' fill='%23180c0c'/><circle cx='580' cy='300' r='140' fill='%23ff5a5f' opacity='0.08'/></svg>");
  background-size: cover;
}

/* 🍽 Restaurant */
.chat-theme-restaurant {
  --accent:#ff9f43;
  background:
    linear-gradient(135deg, rgba(42,16,8,0.85), rgba(110,45,14,0.85)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='800' height='600'><rect width='100%' height='100%' fill='%23271309'/><circle cx='300' cy='350' r='130' fill='%23ff9f43' opacity='0.07'/></svg>");
  background-size: cover;
}

/* ✈ Travel Planner */
.chat-theme-travel-planner {
  --accent:#24a6d9;
  background:
    linear-gradient(135deg, rgba(10,25,55,0.85), rgba(21,74,115,0.85)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='800' height='600'><rect width='100%' height='100%' fill='%23121f3c'/><circle cx='650' cy='230' r='140' fill='%2324a6d9' opacity='0.08'/></svg>");
  background-size: cover;
}

/* =====================================================
         MOBILE RESPONSIVE (PERFECT)
   ===================================================== */

@media (max-width: 900px) {
  .sidebar { display:none; }
}

@media (max-width: 768px) {

  .main-chat {
    width: 100%;
    padding: 0;
  }

  .messages {
    padding: 12px 16px;
  }

  .message {
    max-width: 85%;
    font-size: 15px;
  }

  #composer-input {
    font-size: 15px;
    padding: 10px;
  }

  #send-btn {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }

  .chat-header {
    padding: 14px 20px;
    text-align: center;
  }

  .hero h2 { font-size: 22px; }
  .hero p { font-size: 14px; }

  /* Sidebar slide-out */
  .mobile-sidebar-btn {
    display:block;
  }

  .sidebar {
    position:fixed;
    top:0;
    left:-310px;
    height:100%;
    z-index:9999;
    transition:0.3s ease;
  }

  .sidebar.sidebar-open {
    left:0;
  }
}

/* Sidebar toggle button */
.mobile-sidebar-btn {
  display: none;
  position: fixed;
  top: 15px;
  left: 15px;
  background: var(--accent);
  color: #000;
  border: none;
  padding: 10px 14px;
  font-size: 22px;
  border-radius: 10px;
  z-index: 10000;
  cursor: pointer;
}

/* =====================================================
   AI CHATBOTS PAGE - FIX LINK COLOR (WHITE)
   ===================================================== */

.services-container a.no-link-style,
.services-container a.no-link-style h3,
.services-container a.no-link-style p {
  color: #ffffff !important;
  text-decoration: none !important;
}

.service-card h3,
.service-card p {
  color: #ffffff !important;
}