:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --panel-border: #23324d;
  --text: #e6ebf5;
  --text-dim: #93a3c0;
  --accent: #4c8dff;
  --accent-dim: #2b4a86;
  --green: #36b37e;
  --yellow: #ffab00;
  --red: #ff5c5c;
  --user-bubble: #1c2a45;
  --assistant-bubble: #121a2b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
}

.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ---------- Sidebar ---------- */

.sidebar {
  width: 320px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--panel-border);
  padding: 18px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--panel-border);
}

.brand-mark {
  color: var(--accent);
  font-size: 20px;
}

.brand-title {
  font-weight: 700;
  font-size: 15px;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-dim);
}

.panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 12px;
}

.panel-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 8px;
  font-weight: 600;
}

.project-name {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.project-meta {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}

.status-pill {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  margin-top: 8px;
}

.status-green { background: rgba(54, 179, 126, 0.18); color: var(--green); }
.status-yellow { background: rgba(255, 171, 0, 0.18); color: var(--yellow); }
.status-red { background: rgba(255, 92, 92, 0.18); color: var(--red); }

.milestone-list, .risk-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.milestone-item, .risk-item {
  font-size: 12px;
  padding: 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.02);
  border-left: 3px solid var(--panel-border);
}

.milestone-item.done { border-left-color: var(--green); }
.milestone-item.at_risk { border-left-color: var(--yellow); }
.milestone-item.likely_to_miss { border-left-color: var(--red); }

.milestone-name { font-weight: 600; margin-bottom: 2px; }
.milestone-dates { color: var(--text-dim); font-size: 11px; }

.risk-item .risk-id { font-weight: 700; color: var(--text-dim); margin-right: 4px; }
.risk-item .risk-sev {
  float: right;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}
.risk-sev.critical, .risk-sev.high { color: var(--red); }
.risk-sev.medium { color: var(--yellow); }

.panel-footnote {
  margin-top: auto;
  font-size: 10.5px;
  color: var(--text-dim);
  line-height: 1.4;
  padding-top: 8px;
}

/* ---------- Main ---------- */

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  padding: 14px 20px;
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.topbar-title {
  font-weight: 700;
  font-size: 14px;
}

.account-area {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}

.account-area a {
  color: var(--accent);
  text-decoration: none;
}

.account-area a:hover {
  text-decoration: underline;
}

.user-badge {
  color: var(--text-dim);
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-actions button {
  background: rgba(76, 141, 255, 0.1);
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.quick-actions button:hover {
  background: rgba(76, 141, 255, 0.22);
}

.chat {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.msg {
  max-width: 760px;
}

.msg-user { align-self: flex-end; }

.msg-role {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.msg-user .msg-role { text-align: right; }

.msg-body {
  background: var(--assistant-bubble);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13.5px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.msg-user .msg-body {
  background: var(--user-bubble);
}

.msg-body h1, .msg-body h2, .msg-body h3 {
  font-size: 13.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin: 14px 0 6px;
}

.msg-body h1:first-child, .msg-body h2:first-child, .msg-body h3:first-child {
  margin-top: 0;
}

.msg-body strong { color: #fff; }
.msg-body code {
  background: rgba(255,255,255,0.06);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 12px;
}

.msg-thinking .msg-body {
  color: var(--text-dim);
  font-style: italic;
}

.msg-error .msg-body {
  border-color: var(--red);
  color: var(--red);
}

.composer {
  display: flex;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid var(--panel-border);
}

.composer textarea {
  flex: 1;
  resize: none;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 13.5px;
  font-family: inherit;
}

.composer textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.composer button {
  background: var(--accent);
  color: #051022;
  border: none;
  border-radius: 8px;
  padding: 0 20px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}

.composer button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.composer-hint {
  padding: 0 20px 12px;
  font-size: 11px;
  color: var(--red);
}

/* ---------- Auth pages (login / signup / account) ---------- */

.auth-body {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 28px 26px;
}

.account-card {
  max-width: 440px;
}

.auth-brand {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 18px;
}

.auth-title {
  font-size: 18px;
  margin: 0 0 18px;
}

.auth-subtitle {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin: 22px 0 12px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
}

.auth-form input {
  background: var(--bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 13.5px;
  font-family: inherit;
}

.auth-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.auth-form button {
  background: var(--accent);
  color: #051022;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  margin-top: 4px;
}

.auth-error {
  color: var(--red);
  font-size: 12px;
  margin-top: 12px;
  min-height: 14px;
}

.auth-success {
  color: var(--green);
  font-size: 12px;
  margin-top: 8px;
  min-height: 14px;
}

.auth-switch {
  margin-top: 18px;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
}

.auth-switch a {
  color: var(--accent);
  text-decoration: none;
}

.auth-switch a:hover {
  text-decoration: underline;
}

.account-info {
  font-size: 13px;
  margin-bottom: 6px;
}

.account-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--panel-border);
}

.account-row span {
  color: var(--text-dim);
}