:root {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --surface: #fbfdff;
  --field: #ffffff;
  --output: #f8fafc;
  --text: #1e293b;
  --muted: #64748b;
  --primary: #0f766e;
  --primary-2: #115e59;
  --border: #dbe5ef;
  --link: #0b5ed7;
}

body[data-theme="dark"] {
  --bg: #070b14;
  --panel: #0d1524;
  --surface: #132035;
  --field: #0b1426;
  --output: #091121;
  --text: #eef4ff;
  --muted: #aab9d0;
  --primary: #14b8a6;
  --primary-2: #0d9488;
  --border: #33486d;
  --link: #93c5ff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "SF Pro Display", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top right, #dff7f2, var(--bg) 45%);
  color: var(--text);
}

body[data-theme="dark"] {
  background: radial-gradient(circle at top right, #133157, var(--bg) 52%);
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 12px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar h1 {
  margin: 0;
  font-size: 24px;
}

.status {
  font-size: 12px;
  color: var(--muted);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.chat-more-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.chat-more-actions button {
  margin: 0;
}

.chat-mode-switch {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.chat-mode-switch button {
  margin: 0;
}

.chat-mode-switch button.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent;
}

#seo-controls {
  margin-bottom: 8px;
}

.quick-title {
  font-size: 12px;
  color: var(--muted);
  align-self: center;
  margin-right: 2px;
}

button.quick {
  margin: 0;
  padding: 6px 10px;
  font-size: 13px;
}

.tab {
  border: 1px solid var(--border);
  background: var(--panel) !important;
  color: var(--text) !important;
  border-radius: 12px;
  padding: 10px;
  cursor: pointer;
}

.tab.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: transparent;
}

.panel {
  display: none;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 10px 30px rgba(1, 6, 16, 0.35);
}

.panel.active { display: block; }

h2 {
  margin-top: 4px;
  margin-bottom: 10px;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  font-size: 14px;
  margin-bottom: 8px;
  background: var(--field);
  color: var(--text);
}

textarea::placeholder,
input::placeholder {
  color: var(--muted);
}

select {
  height: 40px;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--primary) !important;
  color: #ffffff !important;
  cursor: pointer;
  margin-right: 8px;
  margin-bottom: 8px;
  border: 1px solid transparent;
}

button:hover { background: var(--primary-2); }

button.ghost {
  background: transparent !important;
  color: var(--text) !important;
  border: 1px solid var(--border);
  margin: 0;
}

button.ghost:hover {
  background: rgba(127, 127, 127, 0.1) !important;
}

.output {
  background: var(--output);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  white-space: pre-wrap;
  min-height: 80px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  background: var(--surface);
  margin-bottom: 8px;
}

.list .card { margin-bottom: 10px; }

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.row.three {
  grid-template-columns: 1fr 1fr auto;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.checkbox input {
  width: auto;
  margin: 0;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.card-actions button {
  margin: 0;
}

.card pre {
  white-space: pre-wrap;
  background: var(--output);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  margin-top: 8px;
}

.toast {
  position: fixed;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  bottom: 18px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
  z-index: 999;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 20, 0.55);
  display: grid;
  place-items: center;
  padding: 14px;
  z-index: 1000;
}

.modal-card {
  width: min(520px, 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  color: var(--text);
  padding: 14px;
}

.modal-card h3 {
  margin: 0 0 8px;
}

.modal-card p {
  margin: 6px 0;
  color: var(--muted);
}

.muted {
  color: var(--muted);
  margin: 8px 0;
}

a { color: var(--link); }

@media (max-width: 600px) {
  .tabs { grid-template-columns: repeat(2, 1fr); }
  .row { grid-template-columns: 1fr; }
  .row.three { grid-template-columns: 1fr; }
  .topbar { gap: 8px; align-items: flex-start; }
  .top-actions { flex-direction: column; align-items: flex-end; }
}