:root {
  --bg: #f5f2ec;
  --panel: #ffffff;
  --ink: #151515;
  --muted: #6c6c6c;
  --accent: #1c7c54;
  --border: #e6e1d8;
}

* {
  box-sizing: border-box;
  font-family: "Georgia", serif;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

.app {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: 100vh;
}

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: bold;
}

.user {
  font-size: 12px;
  color: var(--muted);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-align: left;
}

.primary {
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.chat-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-item {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #faf8f3;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.chat-item.active {
  border-color: var(--accent);
  background: #eef7f1;
}

.chat-title {
  flex: 1;
  font-size: 13px;
}

.chat-actions {
  display: flex;
  gap: 6px;
}

.chat-actions button {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  font-size: 11px;
  padding: 4px 6px;
  border-radius: 6px;
  cursor: pointer;
}

.chat-actions button:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.sidebar-footer {
  font-size: 12px;
}

.sidebar-links {
  display: grid;
  gap: 8px;
}

.sidebar-link {
  display: block;
  text-align: center;
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 10px;
  text-decoration: none;
}

.muted {
  color: var(--muted);
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.toggle input {
  accent-color: var(--accent);
}

.ghost {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  font-size: 12px;
}

.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.modal.open {
  display: flex;
}

.log-modal-image {
  width: 100%;
  max-width: 100%;
  max-height: 80vh;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.log-modal-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--muted);
}

.log-modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 10px;
}

.log-modal-card {
  width: min(95vw, 1000px);
}
.usage-card {
  border: 1px solid var(--border);
  background: #fdfbf7;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 12px;
  display: grid;
  gap: 6px;
}

.usage-title {
  font-weight: bold;
  font-size: 12px;
}

.usage-row {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
}

.usage-row strong {
  color: var(--ink);
}

.api-keys {
  border: 1px solid var(--border);
  background: #fdfbf7;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 12px;
  display: grid;
  gap: 10px;
}

.section-title {
  font-weight: bold;
  font-size: 12px;
}

.api-key-form {
  display: grid;
  gap: 8px;
}

.api-key-form input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
}

.api-key-form button {
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
}

.api-key-list {
  display: grid;
  gap: 10px;
}

.api-key-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: #fff;
  display: grid;
  gap: 6px;
}

.api-key-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-weight: bold;
}

.api-key-status {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.api-key-meta {
  color: var(--muted);
  font-size: 11px;
}

.api-key-key {
  font-family: "Courier New", monospace;
  font-size: 11px;
  word-break: break-all;
  background: #f7f3ed;
  padding: 6px;
  border-radius: 8px;
}

.api-key-actions {
  display: flex;
  gap: 6px;
}

.api-key-actions button {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  font-size: 11px;
  padding: 4px 6px;
  border-radius: 6px;
  cursor: pointer;
}

.api-key-actions button:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.api-key-empty {
  color: var(--muted);
  font-size: 12px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(21, 21, 21, 0.4);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 60px 20px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  width: min(520px, 100%);
  display: grid;
  gap: 16px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.modal-subtitle {
  color: var(--muted);
  font-size: 12px;
}

.ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
}

.ghost:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
}

.logout {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--ink);
  text-decoration: none;
  background: #fff;
}

.logout:hover {
  border-color: var(--accent);
}

.chat {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.messages {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message {
  max-width: 70%;
  padding: 12px 14px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--border);
}

.session-separator {
  align-self: center;
  font-size: 11px;
  color: var(--muted);
  padding: 6px 10px;
  border: 1px dashed var(--border);
  border-radius: 20px;
  background: #faf8f3;
}

.message.user {
  align-self: flex-end;
  background: #eef7f1;
  border-color: #cfe5d8;
}

.message .meta {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
}

.typing {
  align-self: flex-start;
}

.typing .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 4px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.3;
  animation: typing 1s infinite;
}

.typing .dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing .dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0% { opacity: 0.2; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-2px); }
  100% { opacity: 0.2; transform: translateY(0); }
}

.code-block {
  background: #1f1f1f;
  color: #f5f5f5;
  padding: 10px;
  border-radius: 8px;
  font-family: "Courier New", monospace;
  white-space: pre-wrap;
}

.uploaded-image {
  max-width: 320px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.chat-form {
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  display: grid;
  grid-template-columns: 32px 1fr 90px;
  gap: 10px;
  align-items: center;
  background: var(--panel);
}

.chat-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  resize: none;
  min-height: 40px;
}

.chat-form button {
  border: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.upload-btn {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  cursor: pointer;
  background: #faf8f3;
}

#fileInput {
  display: none;
}

.login {
  display: grid;
  place-items: center;
  height: 100vh;
}

.login-card {
  width: 320px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: 12px;
}

.login-card h1 {
  margin-top: 0;
}

.login-card input {
  width: 100%;
  margin: 6px 0 12px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.login-card button {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 0;
  background: var(--accent);
  color: #fff;
}

.error {
  background: #fdecea;
  color: #9b1c1c;
  border: 1px solid #f3c2c2;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 12px;
  margin-bottom: 12px;
}

@media (max-width: 900px) {
  .app {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
  .message {
    max-width: 90%;
  }
  .modal {
    padding: 30px 16px;
    align-items: stretch;
  }
  .modal-card {
    width: 100%;
  }
}