:root {
  color-scheme: dark;
  --bg: #161719;
  --panel: #202226;
  --panel-2: #282b30;
  --line: #363a41;
  --text: #f4f5f7;
  --muted: #a9afb8;
  --accent: #ff5a1f;
  --blue: #2d8cff;
  --green: #28c76f;
}

* { box-sizing: border-box; }

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input, textarea {
  font: inherit;
}

.sidebar {
  min-height: 100vh;
  padding: 18px;
  border-right: 1px solid var(--line);
  background: #1d1f22;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.brand span:not(.mark), .domain, .eyebrow, .prompt-actions span {
  color: var(--muted);
  font-size: 0.82rem;
}

.mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: white;
  font-weight: 900;
}

.mark.big {
  width: 52px;
  height: 52px;
  font-size: 1.4rem;
  margin: 0 auto;
}

.ghost, .project-select, .project-delete, .command-row button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  padding: 10px 12px;
  cursor: pointer;
}

.ghost:hover, .project-row:hover, .command-row button:hover {
  background: var(--panel-2);
}

.small {
  padding: 8px 10px;
}

.projects {
  display: grid;
  gap: 8px;
  overflow: auto;
}

.project-row {
  display: grid;
  grid-template-columns: 1fr 34px;
  align-items: stretch;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.project-select {
  text-align: left;
  color: var(--muted);
  border: 0;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-delete {
  border: 0;
  border-left: 1px solid var(--line);
  color: var(--muted);
  padding: 0;
  font-size: 1.1rem;
}

.project-delete:hover {
  color: #ff8080;
  background: rgba(255, 128, 128, 0.08);
}

.project-row.active {
  color: var(--text);
  border-color: rgba(255, 90, 31, 0.7);
  background: rgba(255, 90, 31, 0.1);
}

.project-row.active .project-select {
  color: var(--text);
}

.domain {
  margin-top: auto;
}

.workspace {
  min-width: 0;
}

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-box {
  width: min(420px, 100%);
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  text-align: center;
}

.login-box h1 {
  margin: 18px 0 8px;
}

.login-box p {
  color: var(--muted);
}

form {
  display: grid;
  gap: 12px;
}

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #121315;
  color: var(--text);
  padding: 13px 14px;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 140px;
}

input:focus, textarea:focus {
  border-color: var(--blue);
}

button[type="submit"], .prompt-actions button {
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  padding: 12px 16px;
  font-weight: 800;
  cursor: pointer;
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.error {
  min-height: 20px;
  color: #ff8080;
}

.app-view {
  min-height: 100vh;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.topbar h1 {
  margin: 4px 0 0;
  font-size: clamp(2rem, 4vw, 4.5rem);
  letter-spacing: 0;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.builder-grid {
  display: grid;
  grid-template-columns: minmax(380px, 560px) minmax(420px, 1fr);
  gap: 18px;
  align-items: stretch;
}

.chat-panel, .preview-panel {
  min-height: calc(100vh - 150px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.chat-panel {
  padding: 16px;
  display: grid;
  grid-template-rows: auto 1fr auto 220px;
  gap: 14px;
}

.prompt-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #181a1d;
}

.prompt-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.messages {
  overflow: auto;
  display: grid;
  align-content: start;
  gap: 10px;
}

.message {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--muted);
  background: #181a1d;
}

.message strong {
  color: var(--text);
}

.command-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.terminal {
  margin: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #101113;
  color: #d8dee8;
  font-size: 0.84rem;
}

.preview-panel {
  display: grid;
  grid-template-rows: 48px 1fr;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.preview-header a {
  color: var(--text);
  text-decoration: none;
}

iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: white;
}

@media (max-width: 980px) {
  body {
    grid-template-columns: 1fr;
  }

  .sidebar {
    min-height: auto;
  }

  .builder-grid {
    grid-template-columns: 1fr;
  }

  .chat-panel, .preview-panel {
    min-height: 600px;
  }
}