* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', sans-serif;
  background: #0f1117;
  color: #e0e0e0;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* NAVBAR */
header {
  background: #1a1d27;
  border-bottom: 1px solid #2d2f3e;
  flex-shrink: 0;
  padding-left: max(0px, env(safe-area-inset-left));
  padding-right: max(0px, env(safe-area-inset-right));
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 52px;
  gap: 16px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo {
  background: #ff6d3b;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.nav-brand h1 { font-size: 1rem; font-weight: 600; color: #fff; }
.badge { background: #2d2f3e; color: #666; font-size: 0.62rem; padding: 2px 6px; border-radius: 10px; font-weight: 600; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}
.nav-link {
  color: #888;
  text-decoration: none;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav-link:hover  { color: #e0e0e0; background: #22253a; }
.nav-link.active { color: #fff;    background: #22253a; }
.hamburger {
  display: none;
  background: none;
  border: none;
  color: #aaa;
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  line-height: 1;
}
.hamburger:active { background: #2d2f3e; }

/* STATUS BAR */
.status-bar {
  background: #13151f;
  padding: 7px 20px;
  font-size: 0.78rem;
  color: #888;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid #2d2f3e;
  flex-shrink: 0;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: #4caf50; display: inline-block; flex-shrink: 0; }
.dot.red { background: #f44336; }

/* MAIN LAYOUT */
.main { display: flex; flex: 1; overflow: hidden; position: relative; }

/* SIDEBAR */
.sidebar {
  width: 260px;
  background: #1a1d27;
  border-right: 1px solid #2d2f3e;
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 8px;
  flex-shrink: 0;
  overflow-y: auto;
}
.sidebar-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.sidebar h2 { font-size: 0.72rem; color: #666; text-transform: uppercase; letter-spacing: 1px; }
.sidebar-close {
  display: none;
  background: none;
  border: none;
  color: #666;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.sidebar-close:active { background: #2d2f3e; }

.webhook-item {
  background: #22253a;
  border: 1px solid #2d2f3e;
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.webhook-item:active, .webhook-item.active { border-color: #ff6d3b; background: #2a1f1a; }
.webhook-item .name { font-size: 0.92rem; font-weight: 500; display: flex; align-items: center; justify-content: space-between; }
.webhook-item .path { font-size: 0.72rem; color: #555; margin-top: 3px; font-family: monospace; word-break: break-all; }
.del-btn {
  background: none; border: none; color: #444; cursor: pointer;
  font-size: 0.9rem; padding: 2px 4px; border-radius: 4px; line-height: 1;
  flex-shrink: 0;
}
.del-btn:active { color: #f44; background: #2d1a1a; }

.add-webhook {
  background: transparent;
  border: 1px dashed #3a3d52;
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  color: #555;
  font-size: 0.85rem;
  text-align: center;
  transition: all 0.2s;
  margin-top: auto;
  -webkit-tap-highlight-color: transparent;
}
.add-webhook:active { border-color: #ff6d3b; color: #ff6d3b; }

/* DRAWER OVERLAY (mobile) */
.drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 50;
}
.drawer-overlay.open { display: block; }

/* CHAT PANEL */
.chat-panel { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

/* Active webhook bar */
.active-bar {
  padding: 8px 16px;
  background: #13151f;
  border-bottom: 1px solid #2d2f3e;
  font-size: 0.8rem;
  color: #888;
  display: none;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.active-bar.visible { display: flex; }
.active-bar strong { color: #ff6d3b; }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  -webkit-overflow-scrolling: touch;
}
.messages::-webkit-scrollbar { width: 4px; }
.messages::-webkit-scrollbar-thumb { background: #2d2f3e; border-radius: 2px; }

.msg { display: flex; flex-direction: column; max-width: 82%; }
.msg.user { align-self: flex-end; align-items: flex-end; }
.msg.bot  { align-self: flex-start; align-items: flex-start; }
.bubble {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}
.msg.user .bubble { background: #ff6d3b; color: #fff; border-bottom-right-radius: 3px; }
.msg.bot  .bubble { background: #22253a; border: 1px solid #2d2f3e; border-bottom-left-radius: 3px; }
.msg.bot  .bubble.loading { color: #666; font-style: italic; }
.msg.bot  .bubble.error   { border-color: #f44; color: #f88; }
.msg .meta { font-size: 0.68rem; color: #555; margin-top: 3px; }

.json-toggle { font-size: 0.7rem; color: #ff6d3b; cursor: pointer; margin-top: 4px; user-select: none; }
.json-block {
  background: #0d0f18; border: 1px solid #2d2f3e; border-radius: 6px;
  padding: 8px 12px; font-family: monospace; font-size: 0.76rem;
  color: #7ec8e3; margin-top: 4px; max-height: 180px; overflow-y: auto;
  white-space: pre; display: none;
}
.json-block.visible { display: block; }

/* INPUT AREA */
.input-area {
  padding: 12px 16px;
  background: #1a1d27;
  border-top: 1px solid #2d2f3e;
  flex-shrink: 0;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
}
.input-row { display: flex; gap: 8px; align-items: flex-end; }
textarea {
  flex: 1; background: #22253a; border: 1px solid #2d2f3e;
  color: #e0e0e0; padding: 10px 14px; border-radius: 22px;
  font-size: 1rem; font-family: inherit; resize: none;
  min-height: 44px; max-height: 120px; line-height: 1.4;
  -webkit-appearance: none;
}
textarea:focus { outline: none; border-color: #ff6d3b; }
button.send {
  background: #ff6d3b; border: none; color: #fff;
  width: 44px; height: 44px; border-radius: 50%;
  cursor: pointer; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: background 0.2s;
  -webkit-tap-highlight-color: transparent;
}
button.send:active { background: #e85a28; }
button.send:disabled { background: #333; cursor: not-allowed; }
.hint { font-size: 0.7rem; color: #444; margin-top: 6px; text-align: center; }

.empty-state { color: #555; font-size: 0.85rem; text-align: center; margin-top: 40px; line-height: 1.6; }

/* MODAL */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.7); z-index: 200;
  align-items: flex-end; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #1a1d27; border: 1px solid #2d2f3e;
  border-radius: 16px 16px 0 0;
  padding: 24px 20px;
  padding-bottom: max(24px, env(safe-area-inset-bottom));
  width: 100%; max-width: 500px;
  display: flex; flex-direction: column; gap: 14px;
}
.modal h3 { font-size: 1rem; }
.modal input {
  background: #22253a; border: 1px solid #2d2f3e; color: #e0e0e0;
  padding: 11px 14px; border-radius: 10px; font-size: 1rem; width: 100%;
  -webkit-appearance: none;
}
.modal input:focus { outline: none; border-color: #ff6d3b; }
.modal label { font-size: 0.8rem; color: #888; display: block; margin-bottom: 4px; }
.modal-btns { display: flex; gap: 10px; }
.modal-btns button {
  flex: 1; padding: 12px; border-radius: 10px; border: none;
  cursor: pointer; font-size: 0.95rem; font-weight: 600;
}
.btn-cancel { background: #2d2f3e; color: #aaa; }
.btn-save   { background: #ff6d3b; color: #fff; }

/* FLOWS CARDS (usadas en flows.html) */
.flow-card {
  background: #22253a;
  border: 1px solid #2d2f3e;
  border-radius: 10px;
  overflow: hidden;
}
.flow-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  gap: 10px;
}
.flow-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.flow-name { font-size: 0.9rem; font-weight: 500; color: #e0e0e0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.flow-path { font-size: 0.72rem; color: #ff6d3b; font-family: monospace; }
.flow-path.none { color: #444; }

.flow-actions { display: flex; gap: 6px; flex-shrink: 0; }
.btn-use-flow {
  background: #ff6d3b; color: #fff; border: none;
  padding: 5px 12px; border-radius: 7px; font-size: 0.78rem;
  font-weight: 600; cursor: pointer; white-space: nowrap;
}
.btn-use-flow:hover { background: #e85a28; }
.btn-view-json {
  background: #2d2f3e; color: #888; border: none;
  padding: 5px 10px; border-radius: 7px; font-size: 0.78rem;
  cursor: pointer; font-family: monospace;
}
.btn-view-json:hover { color: #e0e0e0; }

.flow-json-block {
  display: none;
  background: #0d0f18;
  border-top: 1px solid #2d2f3e;
  padding: 10px 14px;
  font-family: monospace;
  font-size: 0.72rem;
  color: #7ec8e3;
  white-space: pre;
  overflow-x: auto;
  max-height: 220px;
  overflow-y: auto;
}
.flow-json-block.visible { display: block; }

/* MOBILE BREAKPOINT */
@media (max-width: 600px) {
  .hamburger { display: block; }
  .sidebar-close { display: block; }

  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: min(80vw, 300px);
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    padding-top: max(16px, env(safe-area-inset-top));
  }
  .sidebar.open { transform: translateX(0); }

  .active-bar { display: flex; }
  .msg { max-width: 90%; }
  .hint { display: none; }
  .modal-overlay { align-items: flex-end; }
}

@media (min-width: 601px) {
  .active-bar { display: none !important; }
  .modal-overlay { align-items: center; }
  .modal { border-radius: 16px; max-width: 420px; }
  button.send { width: auto; height: 44px; border-radius: 10px; padding: 0 20px; font-size: 0.95rem; }
  .hint { display: block; }
}