:root {
  --navy: #1a2a6c;
  --red: #b21f1f;
  --gold: #fdbb2d;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --bg-chat: #f0f4ff;
  --font-main: 'Poppins', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
}

html {
  height: -webkit-fill-available;
}

body {
  background: linear-gradient(135deg, #1a2a6c 0%, #b21f1f 60%, #fdbb2d 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 16px;
}

/* ── CONTAINER ── */
.chat-container {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  height: 78vh;
  max-height: 680px;
  overflow: hidden;
}

/* ── HEADER ── */
.chat-header {
  background: linear-gradient(135deg, #1a2a6c, #23397a);
  padding: 14px 16px;
  flex-shrink: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hdr-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.hdr-text {
  flex: 1;
}

.hdr-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.3px;
}

.hdr-sub {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 1px;
}

.online-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.6);
  flex-shrink: 0;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.clear-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.8);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: background 0.2s;
}

.clear-btn:hover {
  background: rgba(255, 255, 255, 0.22);
}

/* ── MESSAGES AREA ── */
.chat-messages {
  flex: 1;
  padding: 16px 14px;
  overflow-y: auto;
  background: var(--bg-chat);
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

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

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: #c7d2fe;
  border-radius: 4px;
}

/* ── MESSAGES ── */
.message {
  max-width: 82%;
  padding: 10px 14px;
  font-size: 0.88rem;
  line-height: 1.55;
  word-break: break-word;
  overflow-wrap: break-word;
  animation: msg-in 0.2s ease;
}

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

.message.user {
  background: linear-gradient(135deg, #1a2a6c, #2d44a0);
  color: #fff;
  align-self: flex-end;
  border-radius: 18px 18px 4px 18px;
  box-shadow: 0 2px 8px rgba(26, 42, 108, 0.3);
}

.message.bot {
  background: #ffffff;
  color: var(--text-dark);
  align-self: flex-start;
  border-radius: 18px 18px 18px 4px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.message.bot ul {
  margin: 6px 0 4px 18px;
  padding: 0;
}

.message.bot li {
  margin-bottom: 4px;
  color: var(--text-dark);
}

.message a {
  color: #2563eb;
  text-decoration: underline;
}

.message.user a {
  color: #bfdbfe;
}

/* ── CHIPS ── */
.chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.chip {
  background: #fff;
  color: #1a2a6c;
  font-size: 10.5px;
  font-weight: 500;
  border: 1.5px solid #c7d2fe;
  border-radius: 20px;
  padding: 5px 12px;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  transition: all 0.2s;
}

.chip:hover {
  background: #eef2ff;
  border-color: #818cf8;
  color: #3730a3;
}

.chip:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── TYPING INDICATOR ── */
.typing {
  padding: 6px 14px;
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--bg-chat);
  flex-shrink: 0;
}

.typing-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
}

.typing-dots {
  display: flex;
  gap: 4px;
}

.typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #a5b4fc;
  animation: bounce-dot 1.2s infinite;
}

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

@keyframes bounce-dot {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40%            { transform: translateY(-5px); opacity: 1; }
}

/* ── INPUT AREA ── */
.chat-input {
  display: flex;
  padding: 10px 12px;
  background: #fff;
  border-top: 1px solid #e8edf5;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.chat-input input {
  flex: 1;
  min-width: 0;
  padding: 11px 16px;
  border: 1.5px solid #e2e8f0;
  border-radius: 25px;
  outline: none;
  font-size: 14px;
  background: #f8fafc;
  color: var(--text-dark);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.chat-input input:focus {
  border-color: #818cf8;
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.12);
  background: #fff;
}

.chat-input input::placeholder {
  color: #94a3b8;
  font-size: 13px;
}

.chat-input input:disabled {
  background: #f1f5f9;
  color: #94a3b8;
  cursor: not-allowed;
}

.chat-input button {
  background: linear-gradient(135deg, #b21f1f, #d32f2f);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 42px;
  height: 42px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: transform 0.15s, opacity 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(178, 31, 31, 0.35);
}

.chat-input button:hover {
  transform: scale(1.06);
  box-shadow: 0 6px 16px rgba(178, 31, 31, 0.45);
}

.chat-input button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* ── MOBILE ── */
@media (max-width: 480px) {
  body {
    padding: 0;
    align-items: flex-end;
    height: 100dvh;
    height: -webkit-fill-available;
  }

  .chat-container {
    max-width: 100%;
    border-radius: 24px 24px 0 0;
    height: 100dvh;
    height: -webkit-fill-available;
    max-height: none;
  }

  .chat-messages {
    padding: 12px 10px;
  }

  .chat-input {
    padding: 8px 10px;
    padding-bottom: max(10px, env(safe-area-inset-bottom));
  }

  .hdr-title {
    font-size: 12px;
  }

  .hdr-sub {
    font-size: 9px;
  }
}