body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: #000;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-wrapper {
  width: 800px;
  max-width: 95%;
  height: 90vh;
  background: #111;
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 30px rgba(64, 216, 222, 0.2);
  border: 1px solid rgba(64, 216, 222, 0.3);
  opacity: 0.95;
}

header {
  padding: 1rem;
  background-color: rgba(64, 216, 222, 0.1);
  border-bottom: 1px solid rgba(64, 216, 222, 0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0 0 0.5rem 0;
  font-size: 1.25rem;
  color: rgba(64, 216, 222, 0.9);
}

header select {
  padding: 0.5rem;
  border-radius: 6px;
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
}

.chat-window {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  max-width: 75%;
  line-height: 1.5;
  font-size: 0.95rem;
  white-space: pre-wrap;
}

.message.user {
  background-color: rgba(64, 216, 222, 0.2);
  align-self: flex-end;
  color: white;
}

.message.bot {
  background-color: rgba(255, 255, 255, 0.05);
  align-self: flex-start;
  color: #d0d8f3;
}

form {
  display: flex;
  padding: 1rem;
  border-top: 1px solid rgba(64, 216, 222, 0.2);
  gap: 0.5rem;
}

form textarea {
  flex: 1;
  padding: 0.75rem;
  font-size: 1rem;
  resize: none;
  border-radius: 6px;
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
}

form button {
  padding: 0 1.5rem;
  background-color: rgba(64, 216, 222, 0.9);
  color: black;
  font-weight: bold;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s;
}

form button:hover {
  background-color: rgba(64, 216, 222, 1);
}

#bgVideo {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100vw;
  min-height: 100vh;
  z-index: -1;
  object-fit: cover;
  opacity: 0.5;
}

.loader {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(64, 216, 222, 0.3);
  border-top: 3px solid rgba(64, 216, 222, 0.9);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 4px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading-container {
  margin: 1rem 0;
  padding: 1rem;
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border: 1px solid rgba(64, 216, 222, 0.2);
}

.loading-step {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0;
  opacity: 0.4;
  transition: all 0.3s ease;
}

.loading-step.active {
  opacity: 1;
  transform: translateX(5px);
}

.loading-step.completed {
  opacity: 0.6;
}

.step-indicator {
  position: relative;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.step-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(64, 216, 222, 0.3);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}

.loading-step.active .step-dot {
  background-color: rgba(64, 216, 222, 0.8);
  box-shadow: 0 0 10px rgba(64, 216, 222, 0.5);
}

.loading-step.completed .step-dot {
  background-color: rgba(64, 216, 222, 0.6);
  transform: translate(-50%, -50%) scale(0.8);
}

.step-loader {
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  border: 2px solid rgba(64, 216, 222, 0.2);
  border-top: 2px solid rgba(64, 216, 222, 0.8);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.loading-step.active .step-loader {
  opacity: 1;
}

.step-text {
  color: #d0d8f3;
  font-size: 0.9rem;
  line-height: 1.4;
  flex: 1;
}

.loading-step.active .step-text {
  color: rgba(64, 216, 222, 0.9);
  font-weight: 500;
}

header select {
  padding: 0.5rem;
  border-radius: 6px;
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
}

select option {
  background-color: #111;
  color: white;
}

.category-select {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.category-select label {
  color: white;
  font-weight: 500;
}

.message.bot h1,
.message.bot h2,
.message.bot h3 {
  color: #40d8de;
  margin: 1rem 0 0.5rem;
}

.message.bot p {
  margin: 0.5rem 0;
}

.message.bot code {
  background-color: #222;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  color: #fff176;
}

.message.bot pre {
  background-color: #222;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 8px;
  color: #fff;
}
.message.bot table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.message.bot th,
.message.bot td {
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.5rem;
  text-align: left;
}

.message.bot th {
  background-color: rgba(64, 216, 222, 0.1);
  color: #40d8de;
}

/* Kaynak Belgeler Bölümü */
.sources-container {
  margin-top: 1rem;
  border: 1px solid rgba(64, 216, 222, 0.2);
  border-radius: 8px;
  background-color: rgba(64, 216, 222, 0.03);
  overflow: hidden;
}

.sources-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background-color: rgba(64, 216, 222, 0.1);
  cursor: pointer;
  transition: background-color 0.2s ease;
  border-bottom: 1px solid rgba(64, 216, 222, 0.15);
}

.sources-header:hover {
  background-color: rgba(64, 216, 222, 0.15);
}

.sources-title {
  font-weight: 600;
  color: #40d8de;
  font-size: 0.9rem;
}

.sources-toggle {
  color: #40d8de;
  font-size: 0.8rem;
  transition: transform 0.3s ease;
}

.sources-list {
  transition: max-height 0.3s ease-out;
  overflow: hidden;
}

.source-item {
  display: flex;
  gap: 0.5rem;
  padding: 0.25rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background-color 0.2s ease;
  align-items: center;
}

.source-item:last-child {
  border-bottom: none;
}

.source-item:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.source-number {
  color: #40d8de;
  font-weight: 600;
  font-size: 0.8rem;
  min-width: 16px;
  flex-shrink: 0;
}

.source-details {
  flex: 1;
}

.source-title {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.1;
}

.source-title a {
  color: #40d8de;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.source-title a:hover {
  color: #5ae4ea;
  text-decoration: underline;
}



@media (max-width: 600px) {
  .app-wrapper {
    width: 100%;
    height: 95dvh;
    display: flex;
    flex-direction: column;
  }

  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  header h1 {
    font-size: 1.1rem;
  }

  header select {
    width: 100%;
  }

  .chat-window {
    padding: 0.75rem;
  }

  form {
    flex-direction: column;
    gap: 0.5rem;
  }

  form textarea {
    font-size: 1rem;
    padding: 0.75rem;
  }

  form button {
    width: 100%;
    padding: 0.75rem;
  }
  #bgVideo {
    display: none;
  }
  .category-select {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  /* Mobil için Kaynak Belgeler */
  .sources-container {
    margin-top: 0.75rem;
  }

  .sources-header {
    padding: 0.6rem 0.75rem;
  }

  .sources-title {
    font-size: 0.85rem;
  }

  .source-item {
    padding: 0.2rem 0.75rem;
    gap: 0.4rem;
  }

  .source-number {
    font-size: 0.75rem;
    min-width: 14px;
  }

  .source-title {
    font-size: 0.8rem;
  }

  .loading-container {
    margin: 0.5rem 0;
    padding: 0.75rem;
  }

  .loading-step {
    padding: 0.5rem 0;
    gap: 0.75rem;
  }

  .step-text {
    font-size: 0.85rem;
  }

  .step-indicator {
    width: 20px;
    height: 20px;
  }

  .step-loader {
    width: 20px;
    height: 20px;
  }
}