/* style.css — the single app stylesheet (no build step).
   Layout: top bar / two-column main (chat left, preview+code right) / status bar.
   Dark theme to match the builder aesthetic. */

:root {
  --bg: #0f1115;
  --panel: #1c2028;
  --panel-2: #232833;
  --border: #2a2f3a;
  --text: #e6e6e6;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --ok: #3ecf8e;
  --warn: #f5a623;
  --err: #ef5b58;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
  overflow: hidden;
}

.muted { color: var(--muted); }
[hidden] { display: none !important; }

/* ---------------------------------------------------------------- buttons */
.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-warn { background: transparent; border-color: var(--warn); color: var(--warn); }
.btn-ghost { background: transparent; }
.icon-btn { padding: 4px 8px; }
.seg.active { border-color: var(--accent); color: var(--accent); }

/* ---------------------------------------------------------------- top bar */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.topbar-brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.brand-icon { font-size: 18px; }
.brand-name { letter-spacing: 0.2px; }
.topbar-projects { position: relative; }
.project-btn { white-space: nowrap; }
.project-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 280px;
  max-height: 60vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  z-index: 60;
  padding: 6px;
}
.menu-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  padding: 6px 8px 4px;
}
.project-list { display: flex; flex-direction: column; }
.project-btn-row, .project-list .project-btn {
  display: flex;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: 6px;
  padding: 7px 8px;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}
.project-list .project-btn:hover, .menu-new:hover { background: var(--panel-2); }
.project-list .project-btn.active { color: var(--accent); }
.project-btn-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.menu-new { margin-top: 6px; width: 100%; text-align: left; }
.menu-empty { color: var(--muted); padding: 10px 8px; font-size: 13px; }
.rename-input {
  background: var(--bg);
  border: 1px solid var(--accent);
  color: var(--text);
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 13px;
  width: 100%;
}
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #8a5cf6);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  user-select: none;
}

/* ------------------------------------------------------------------- main */
.main {
  display: grid;
  grid-template-columns: minmax(340px, 440px) 1fr;
  min-height: 0;
}
.chat-panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  min-height: 0;
  background: var(--bg);
}
.right-panel { display: flex; flex-direction: column; min-height: 0; background: var(--bg); }
.panel-tabs {
  display: flex;
  gap: 6px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.panel-body { flex: 1; min-height: 0; display: flex; flex-direction: column; }

/* ------------------------------------------------------------------- chat */
.chat-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}
.chat-card {
  max-width: 92%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  background: var(--panel);
  font-size: 14px;
  overflow-wrap: break-word;
}
.card-user { align-self: flex-end; background: #24304a; border-color: #33415f; }
.card-assistant { align-self: flex-start; }
.card-tool { align-self: stretch; max-width: 100%; background: var(--panel-2); }
.card-meta { font-size: 11px; color: var(--muted); margin-bottom: 4px; display: flex; gap: 6px; align-items: baseline; }
.project-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-text { white-space: pre-wrap; }
.tool-block { border: 1px solid var(--border); border-radius: 6px; margin-top: 6px; background: var(--panel); }
.tool-block > summary {
  cursor: pointer;
  list-style: none;
  padding: 6px 8px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tool-block > summary::-webkit-details-marker { display: none; }
.tool-summary { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.tool-block-label { color: var(--text); font-weight: 500; }
.tool-chev { transition: transform 0.12s ease; }
.tool-block[open] .tool-chev { transform: rotate(90deg); }
.tool-block-body { padding: 4px 8px 8px; border-top: 1px solid var(--border); }
.tool-kv { font-size: 12px; margin: 4px 0; }
.tool-kv b { color: var(--muted); font-weight: 500; margin-right: 4px; }
.tool-pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  max-height: 200px;
  overflow: auto;
  white-space: pre-wrap;
  margin: 4px 0 0;
}
.tool-pending { color: var(--muted); font-size: 12px; font-style: italic; }
.tool-error-line { color: var(--err); font-size: 12px; margin-top: 4px; white-space: pre-wrap; }
.card-error { border-color: var(--err); }
.notice-line { font-size: 12px; color: var(--muted); text-align: center; padding: 2px 0; }

.step-badge {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  padding: 2px 10px;
}

/* ----------------------------------------------------- onboarding (styling spec) */
.chat-onboarding { gap: 12px; max-width: 420px; margin: 0 auto; }
.onboarding-title { font-size: 20px; font-weight: 650; color: var(--text); }
.onboarding-sub { margin: 0; font-size: 14px; line-height: 1.5; }
.starter-list { display: flex; flex-direction: column; gap: 8px; width: 100%; margin-top: 8px; }
.starter-chip {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  text-align: left;
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.starter-chip:hover { border-color: var(--accent); background: rgba(79, 140, 255, 0.08); }
.composer-send { font-weight: 600; padding: 8px 16px; }
.conn-action { color: var(--err); cursor: pointer; text-decoration: underline dotted; }
.status-chip:not(.state-running) { color: var(--ok); border-color: rgba(62, 207, 142, 0.4); }

.composer { border-top: 1px solid var(--border); padding: 10px; background: var(--panel); }
.composer-row { display: flex; gap: 8px; align-items: flex-end; }
.composer-input {
  flex: 1;
  resize: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 8px 10px;
  font: inherit;
  font-size: 14px;
  min-height: 44px;
}
.composer-input:focus { outline: none; border-color: var(--accent); }
.composer-actions { display: flex; align-items: center; gap: 8px; }
.composer-send { font-size: 15px; }
.composer-cancel { white-space: nowrap; }
.composer-side-row { display: flex; gap: 6px; margin-top: 8px; }
.composer-side { padding: 4px 8px; font-size: 13px; }

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--muted);
  padding: 20px;
  text-align: center;
}
.empty-icon { font-size: 34px; }

/* ---------------------------------------------------------------- preview */
#panel-preview { display: flex; flex-direction: column; min-height: 0; }
.preview-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.preview-hint { margin-left: auto; font-size: 11px; }
.preview-scroll { flex: 1; overflow: auto; padding: 14px; display: flex; justify-content: center; }
.preview-wrap {
  width: 100%;
  height: 100%;
  transition: width 0.15s ease;
}
.preview-wrap.device-mobile { width: 375px; }
.preview-frame {
  width: 100%;
  height: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}
.preview-note { font-size: 11px; color: var(--muted); padding: 6px 10px; }
.preview-note a { color: var(--muted); }

/* --------------------------------------------------------------- codeview */
#panel-code { display: flex; flex-direction: column; min-height: 0; }
.code-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}
.code-path { font-size: 12px; color: var(--muted); margin-left: auto; }
.dirty-dot { color: var(--warn); font-size: 12px; }
.code-split { flex: 1; display: grid; grid-template-columns: 230px 1fr; min-height: 0; }

.tree { overflow: auto; border-right: 1px solid var(--border); padding: 8px 4px; background: var(--panel); }
.tree-row {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  background: transparent;
  border: 0;
  color: var(--text);
  text-align: left;
  font-size: 13px;
  padding: 3px 8px;
  cursor: pointer;
  border-radius: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tree-row:hover { background: var(--panel-2); }
.tree-row.active { color: var(--accent); }
.tree-children { margin-left: 14px; }
.tree-chevron { display: inline-block; width: 12px; transition: transform 0.12s ease; color: var(--muted); }
.tree-chevron.open { transform: rotate(90deg); }
.tree-empty { color: var(--muted); font-size: 12px; padding: 8px; }

.editor-pane { display: flex; flex-direction: column; min-height: 0; }
.editor-host { flex: 1; min-height: 0; overflow: auto; }
.editor-host .cm-editor { height: 100%; }
.code-empty { flex: 1; display: flex; flex-direction: column; }
.code-empty .empty-state { flex: 1; }

/* --------------------------------------------------------------- settings */
.provider-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  margin-bottom: 8px;
  background: var(--panel);
}
.provider-head { display: flex; align-items: center; gap: 8px; }
.provider-name { font-weight: 600; }
.key-masked { font-family: ui-monospace, monospace; font-size: 12px; color: var(--muted); }
.provider-meta { font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }
.provider-actions { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.test-result { font-size: 12px; margin-left: 8px; }
.test-ok { color: var(--ok); }
.test-err { color: var(--err); overflow-wrap: anywhere; }

.settings-section { margin-top: 14px; }
.settings-section + .settings-section { border-top: 1px solid var(--border); padding-top: 14px; }
.settings-section-title { font-weight: 600; font-size: 13px; margin-bottom: 6px; }
.settings-note { font-size: 12px; margin: 0 0 10px; }
.connection-row { display: flex; gap: 8px; }
.connection-row .form-input { flex: 1; }
.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.provider-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font: inherit;
  font-size: 12px;
}
.provider-card:hover { border-color: var(--accent); }
.provider-card.selected {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.12);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
.provider-card-name { font-weight: 600; font-size: 13px; }
.provider-card-url { color: var(--muted); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.field-hint { margin: 2px 0 0; font-size: 11px; color: var(--muted); overflow-wrap: anywhere; }
.settings-form { display: flex; flex-direction: column; gap: 8px; }
.form-row { display: flex; flex-direction: column; gap: 4px; }
.form-row label, .form-label { font-size: 12px; color: var(--muted); }
.form-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 9px;
  font: inherit;
  font-size: 13px;
}
.form-input:focus { outline: none; border-color: var(--accent); }
.form-error { color: var(--err); font-size: 12px; min-height: 14px; }
.default-provider-row { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 13px; }
.default-provider-row select { flex: 1; }
.master-key-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--warn);
  border: 1px dashed var(--warn);
  border-radius: 6px;
  padding: 8px 10px;
}
.settings-list { max-height: 40vh; overflow: auto; }

/* -------------------------------------------------------------- statusbar */
.statusbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 5px 14px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.status-item { display: inline-flex; align-items: center; gap: 6px; }
.status-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 10px;
  background: var(--panel-2);
}
.status-chip.state-running { color: var(--ok); border-color: var(--ok); }
.conn-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); display: inline-block; }
.conn-open { background: var(--ok); }
.conn-connecting, .conn-reconnecting { background: var(--warn); }
.conn-closed { background: var(--err); }
.status-model { margin-left: auto; }

/* ------------------------------------------------------ toasts and modals */
.toast-out {
  position: fixed;
  right: 14px;
  bottom: 44px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  max-width: 380px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 13px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
}
.toast.success { border-left-color: var(--ok); }
.toast.error { border-left-color: var(--err); }
.toast.loading { border-left-color: var(--warn); }
.toast-icon { font-size: 14px; }
.toast-msg { overflow-wrap: anywhere; }
.toast-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid var(--warn);
  border-top-color: transparent;
  border-radius: 50%;
  animation: pc-spin 0.8s linear infinite;
}
@keyframes pc-spin { to { transform: rotate(360deg); } }

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 14, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 380px;
  max-width: min(620px, 92vw);
  max-height: 86vh;
  overflow: auto;
  padding: 14px 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}
.modal-title { display: flex; align-items: center; font-weight: 600; margin-bottom: 10px; }
.modal-close {
  margin-left: auto;
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
}
.confirm-message { font-size: 14px; margin: 6px 0 14px; }
.confirm-body { display: flex; flex-direction: column; }
.confirm-actions { display: flex; justify-content: flex-end; gap: 8px; }

.token-form { display: flex; flex-direction: column; gap: 8px; }
.token-reason { font-size: 13px; color: var(--muted); }
.token-error { color: var(--err); font-size: 12px; min-height: 14px; }
.token-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 10px;
  font: inherit;
}
.token-input:focus { outline: none; border-color: var(--accent); }

/* ------------------------------------------------------------ responsive */
@media (max-width: 1024px) {
  .main { grid-template-columns: minmax(280px, 320px) 1fr; }
  .code-split { grid-template-columns: 180px 1fr; }
}

/* --------------------------------------------------- template picker (FE-12) */
.template-hint {
  margin: -2px 0 6px;
  font-size: 12px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

/* -------------------------------------------------------- wallet panel (FE-12) */
.settings-wallet {
  margin-top: 12px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.wallet-title { font-weight: 600; margin-bottom: 8px; }
.wallet-balance-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.wallet-balance { font-size: 18px; font-weight: 600; }
.wallet-enforcement-on { color: var(--ok); border-color: var(--ok); }
.wallet-enforcement-off { color: var(--warn); border-color: var(--warn); }
.wallet-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 16px;
  font-size: 12px;
}
.wallet-kv { display: flex; justify-content: space-between; gap: 8px; min-width: 0; }
.wallet-kv b { color: var(--muted); font-weight: 500; }
.wallet-kv span { font-family: ui-monospace, monospace; overflow-wrap: anywhere; }
.wallet-note { margin: 8px 0 0; font-size: 11px; color: var(--muted); }
.wallet-topup { display: flex; gap: 8px; margin-top: 10px; }
.wallet-topup .form-input { width: 110px; }
.wallet-history-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin: 12px 0 4px;
}
.wallet-history { max-height: 180px; overflow: auto; }
.wallet-tx {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
  gap: 10px;
  font-size: 12px;
  padding: 3px 0;
  border-bottom: 1px solid var(--border);
}
.wallet-tx:last-child { border-bottom: 0; }
.wallet-tx-ts, .wallet-tx-balance { color: var(--muted); font-family: ui-monospace, monospace; }
.wallet-tx-credit { color: var(--ok); }
.wallet-tx-debit { color: var(--err); }