:root {
  color-scheme: light dark;
  --bg: #0f1419;
  --panel: #1a2332;
  --border: #2d3a4f;
  --text: #e8eef7;
  --muted: #9aa8bc;
  --accent: #4f8cff;
  --accent-hover: #3a7af0;
  --user: #1f3d5c;
  --assistant: #182433;
  --error: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #0b1016 0%, var(--bg) 100%);
  color: var(--text);
}

body.cursor-wait,
body.cursor-wait *,
html.cursor-wait,
html.cursor-wait * {
  cursor: wait !important;
}

.wait-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  cursor: wait;
  background: transparent;
}

.wait-overlay.hidden {
  display: none;
}

.app {
  max-width: 820px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  gap: 1rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.header h1 {
  margin: 0;
  font-size: 1.4rem;
}

.assessment-times {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.3;
  min-width: 0;
  text-align: left;
  margin-right: auto;
}

.assessment-times.hidden,
.assessment-time.hidden {
  display: none;
}

.early-coaching-banner {
  margin: 0;
  padding: 0.65rem 1rem;
  border-radius: 0.5rem;
  border: 2px solid #ffd54f;
  background: rgba(255, 213, 79, 0.18);
  color: #ffe082;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-align: center;
  box-shadow: 0 0 12px rgba(255, 213, 79, 0.35);
}

.early-coaching-banner.hidden {
  display: none;
}

.model-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

select,
textarea,
button {
  font: inherit;
}

select {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.45rem 0.6rem;
}

.messages {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow-y: auto;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  min-height: 320px;
}

.message {
  padding: 0.85rem 1rem;
  border-radius: 0.65rem;
  line-height: 1.5;
  word-break: break-word;
}

.message.user {
  white-space: pre-wrap;
}

.message.assistant .markdown-body {
  white-space: normal;
}

.message.assistant .markdown-body > :first-child {
  margin-top: 0;
}

.message.assistant .markdown-body > :last-child {
  margin-bottom: 0;
}

.message.assistant .markdown-body p {
  margin: 0.5em 0;
}

.message.assistant .markdown-body ul,
.message.assistant .markdown-body ol {
  margin: 0.5em 0;
  padding-left: 1.4em;
}

.message.assistant .markdown-body li {
  margin: 0.25em 0;
}

.message.assistant .markdown-body h1,
.message.assistant .markdown-body h2,
.message.assistant .markdown-body h3 {
  margin: 0.75em 0 0.35em;
  line-height: 1.25;
}

.message.assistant .markdown-body h1 {
  font-size: 1.25rem;
}

.message.assistant .markdown-body h2 {
  font-size: 1.1rem;
}

.message.assistant .markdown-body h3 {
  font-size: 1rem;
}

.message.assistant .markdown-body blockquote {
  margin: 0.5em 0;
  padding-left: 0.85em;
  border-left: 3px solid var(--border);
  color: var(--muted);
}

.message.assistant .markdown-body pre {
  margin: 0.65em 0;
  padding: 0.75em 1em;
  overflow-x: auto;
  border-radius: 0.45rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
}

.message.assistant .markdown-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.message.assistant .markdown-body :not(pre) > code {
  padding: 0.12em 0.35em;
  border-radius: 0.25rem;
  background: rgba(0, 0, 0, 0.25);
}

.message.assistant .markdown-body a {
  color: var(--accent);
}

.message.assistant .markdown-body a:hover {
  color: var(--accent-hover);
}

.message.assistant .markdown-body hr {
  margin: 0.75em 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.message.user {
  background: var(--user);
  align-self: flex-end;
  max-width: 85%;
}

.message.assistant {
  background: var(--assistant);
  border: 1px solid var(--border);
}

.message.error {
  background: rgba(255, 107, 107, 0.12);
  border: 1px solid rgba(255, 107, 107, 0.35);
  color: var(--error);
}

.message.empty {
  color: var(--muted);
  text-align: center;
  border: 1px dashed var(--border);
  background: transparent;
}

.composer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

textarea {
  width: 100%;
  resize: vertical;
  min-height: 5rem;
  padding: 0.85rem 1rem;
  border-radius: 0.65rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
}

textarea:focus {
  outline: 2px solid rgba(79, 140, 255, 0.35);
  border-color: var(--accent);
}

.composer-actions {
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  gap: 0.75rem;
}

.composer-actions button {
  flex-shrink: 0;
}

button {
  border: none;
  border-radius: 0.5rem;
  padding: 0.55rem 1rem;
  cursor: pointer;
  background: var(--accent);
  color: white;
}

button:hover:not(:disabled) {
  background: var(--accent-hover);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-gate {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(8, 12, 18, 0.82);
  backdrop-filter: blur(4px);
  z-index: 10;
}

.auth-gate.hidden {
  display: none;
}

.auth-card {
  width: min(100%, 560px);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.25rem;
  border-radius: 0.85rem;
  border: 1px solid var(--border);
  background: var(--panel);
}

.auth-login-form.hidden,
.auth-logging-in.hidden {
  display: none;
}

.auth-logging-in h2 {
  margin: 0;
  font-size: 1.2rem;
  text-align: center;
}

.auth-card h2 {
  margin: 0;
  font-size: 1.2rem;
}

.auth-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.auth-error {
  margin: 0;
  color: var(--error);
}

.auth-error.hidden {
  display: none;
}

.app-locked {
  pointer-events: none;
  opacity: 0.45;
}