:root {
  --primary: #0078d4;
  --primary-hover: #005a9e;
  --bg: #f0f2f5;
  --ai-bubble: #ffffff;
  --user-bubble: #0078d4;
  --text-main: #333;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg);
  margin: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

#chat {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* Almennar bólur */
.msg {
  padding: 12px 18px;
  border-radius: 18px;
  max-width: 75%;
  line-height: 1.5;
  font-size: 15px;
  box-shadow: var(--shadow);
  word-wrap: break-word;
  display: block;
  position: relative;
}

  .msg.user {
    align-self: flex-end !important;
    background-color: #0078d4 !important; /* Blár litur */
    color: white !important;
    margin-left: auto !important; /* Þetta er lykillinn að því að hún fari til hægri */
    border-bottom-right-radius: 4px !important;
  }

  /* BENDILL (AI): Hvítar bólur vinstra megin */
  .msg.ai {
    align-self: flex-start !important;
    background-color: var(--ai-bubble) !important;
    color: var(--text-main) !important;
    border-bottom-left-radius: 4px !important;
    margin-right: 20%;
    border: 1px solid #ddd;
  }

    /* Gera lista og feitletraðan texta snyrtilegan í AI bólum */
    .msg.ai ul, .msg.ai ol {
      margin: 5px 0;
      padding-left: 20px;
    }

    .msg.ai p {
      margin: 5px 0;
    }

@media (max-width: 600px) {
  .msg {
    max-width: 90%;
  }

  #input-area {
    padding: 10px;
  }
}

/* Inntakssvæði neðst */
#input-area {
  padding: 20px;
  background: white;
  display: flex;
  gap: 10px;
  border-top: 1px solid #ddd;
}

input {
  flex: 1;
  padding: 12px 15px;
  border: 2px solid #eee;
  border-radius: 10px;
  outline: none;
}

  input:focus {
    border-color: var(--primary);
  }

button {
  padding: 10px 20px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: bold;
}

#sendBtn {
  background: var(--primary);
  color: white;
}

#clearBtn {
  background: #f8d7da;
  color: #721c24;
}

/* Loading lúðurinn */
#loading {
  display: none;
  align-self: flex-start;
  margin-left: 10px;
}

#spinner {
  height: 40px;
  animation: spin 1.5s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Collapsible university headings in AI study lists */
.msg.ai h3.university-heading {
  cursor: pointer;
  user-select: none;
  margin: 12px 0 4px;
  font-size: 15px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.msg.ai h3.university-heading::before {
  content: '▶';
  font-size: 11px;
  transition: transform 0.2s;
  display: inline-block;
}

.msg.ai h3.university-heading.open::before {
  transform: rotate(90deg);
}

.msg.ai h3.university-heading:hover {
  color: var(--primary-hover);
}

/* Valmöguleikatakkar fyrir Holland */
.option-container {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  animation: fadeIn 0.5s ease-in;
}

.option-btn {
  padding: 8px 16px;
  border: 1.5px solid var(--primary);
  background: white;
  color: var(--primary);
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
}

.option-btn:hover {
  background: var(--primary);
  color: white;
}

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