:root {
  --tec-blue: #0039A6;
  --bg: #f4f7fb;
  --white: #ffffff;
  --text: #111827;
  --muted: #6b7280;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 30px;
}

.hero {
  text-align: center;
  margin-bottom: 24px;
}

.hero h1 {
  color: var(--tec-blue);
  font-size: 42px;
  margin-bottom: 8px;
}

.chat-card {
  width: 100%;
  max-width: 520px;
  background: var(--white);
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
  overflow: hidden;
}

.chat-header {
  background: var(--tec-blue);
  color: white;
  padding: 18px;
  display: flex;
  justify-content: space-between;
}

.chat-header span {
  font-size: 14px;
}

.program-selector {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-bottom: 1px solid #e5e7eb;
}

.program-selector button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 12px;
  background: #eef3ff;
  color: var(--tec-blue);
  font-weight: bold;
  cursor: pointer;
}

.chat-messages {
  height: 330px;
  overflow-y: auto;
  padding: 18px;
  background: #f9fafb;
}

.bot-message,
.user-message {
  max-width: 80%;
  padding: 12px 14px;
  border-radius: 14px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.bot-message {
  background: white;
  border: 1px solid #e5e7eb;
}

.user-message {
  background: var(--tec-blue);
  color: white;
  margin-left: auto;
}

.chat-form {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid #e5e7eb;
}

.chat-form input {
  flex: 1;
  padding: 12px;
  border: 1px solid #d1d5db;
  border-radius: 12px;
}

.chat-form button {
  background: var(--tec-blue);
  color: white;
  border: none;
  padding: 0 18px;
  border-radius: 12px;
  cursor: pointer;
}

.quick-actions {
  display: grid;
  gap: 10px;
  margin: 10px 0 18px 0;
}

.quick-actions button {
  border: none;
  background: #eef3ff;
  color: var(--tec-blue);
  padding: 12px 14px;
  border-radius: 14px;
  font-weight: bold;
  cursor: pointer;
  text-align: left;
}

.quick-actions button:hover {
  background: #dfe8ff;
}

.chat-card {
  width: 100%;
  max-width: 520px;
  height: 620px;
  background: var(--white);
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px;
  background: #f9fafb;
}

.chat-form {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid #e5e7eb;
  background: white;
}

.quick-actions {
  display: grid;
  gap: 10px;
  margin: 10px 0 18px 0;
}

.quick-actions button {
  border: none;
  background: #eef3ff;
  color: var(--tec-blue);
  padding: 12px 14px;
  border-radius: 14px;
  font-weight: bold;
  cursor: pointer;
  text-align: left;
}

.quick-actions button:hover {
  background: #dfe8ff;
}