:root {
  --bg: #f7f5f0;
  --bg-2: #efe9df;
  --ink: #1c1c1a;
  --muted: #6f6b63;
  --accent: #1f8a70;
  --card: #ffffff;
  --border: #e0dad0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  background: radial-gradient(circle at top left, #e9f5f1 0%, var(--bg) 60%);
  color: var(--ink);
}

.app { min-height: 100dvh; }

.auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: min(420px, 92vw);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  display: grid;
  gap: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.brand {
  font-size: 24px;
  font-weight: 700;
}

.auth-card p { margin: 0; color: var(--muted); }

.field { display: grid; gap: 8px; }
label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  background: #fff;
}

textarea { resize: vertical; }

button {
  border: none;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}
button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}
button.danger { border-color: #d36b6b; color: #d36b6b; }

.auth-actions { display: flex; gap: 10px; }
.auth-error { color: #b23a3a; font-size: 13px; }

.app-view { padding: 24px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.top-actions { display: flex; gap: 12px; align-items: center; }

.tabs { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.tab-btn {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
}
.tab-btn.active { background: var(--ink); color: #fff; }

.views { display: grid; gap: 18px; }
.view { display: none; }
.view.active { display: block; }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.panel-header h2 { margin: 0; }
.panel-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.panel-body { display: grid; gap: 16px; }
.grid-2 { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 16px; }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}
.metric-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  background: #fff;
}
.metric-card strong { font-size: 18px; color: var(--ink); }

.chart-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  background: #fff;
}
.chart-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.legend { display: flex; gap: 10px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 4px; }
.dot.click { background: #1f8a70; }
.dot.download { background: #f36b2c; }
.dot.response { background: #5f7bdc; }
.dot.whatsapp { background: #1d9e5d; }

.chart { display: grid; gap: 8px; margin-top: 12px; }
.chart-row { display: grid; grid-template-columns: 64px 1fr; gap: 10px; align-items: center; }
.chart-row span { font-size: 11px; color: var(--muted); }
.chart-bars { display: grid; grid-template-columns: repeat(auto-fit, minmax(10px, 1fr)); gap: 6px; align-items: end; height: 120px; }
.chart-group { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; align-items: end; height: 100%; }
.bar { width: 100%; border-radius: 6px; min-height: 4px; }
.bar.click { background: #1f8a70; }
.bar.download { background: #f36b2c; }
.bar.response { background: #5f7bdc; }
.bar.whatsapp { background: #1d9e5d; }

.list { display: grid; gap: 10px; }
.list-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: #fff;
  display: grid;
  gap: 8px;
}
.list-item h4 { margin: 0; }
.list-item p { margin: 0; color: var(--muted); font-size: 12px; }
.list-actions { display: flex; gap: 8px; flex-wrap: wrap; }

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

.check-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink); }

.link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}
.link-btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}
.link-btn.disabled { opacity: 0.45; pointer-events: none; }

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0,0,0,0.35);
  z-index: 50;
}
.modal.open { display: flex; }
.modal-card {
  width: min(920px, 96vw);
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 16px;
  display: grid;
  gap: 12px;
  max-height: 90vh;
  overflow: auto;
}
.modal-card.modal-wide { width: min(1100px, 96vw); }
.modal-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.modal-body { display: grid; gap: 12px; }

.form { display: grid; gap: 12px; }
.form-block { display: grid; gap: 12px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }

.preview { border: 1px solid var(--border); border-radius: 16px; background: #f8f6f2; padding: 12px; position: sticky; top: 0; height: fit-content; }
.preview-card { max-width: 520px; margin: 0 auto; border: 1px solid var(--border); border-radius: 16px; background: #fff; padding: 18px; display: grid; gap: 12px; }
.preview-card img { width: 100%; max-width: 520px; max-height: 200px; object-fit: cover; border-radius: 12px; }
.preview-card h3 { margin: 0; font-size: 22px; }
.preview-card p { margin: 0; color: var(--muted); font-size: 14px; }
.preview-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pill { background: var(--bg-2); padding: 6px 10px; border-radius: 999px; font-size: 12px; }

.preview-card.font-grotesk { font-family: 'Space Grotesk', sans-serif; }
.preview-card.font-serif { font-family: 'Merriweather', serif; }
.preview-card.font-roboto { font-family: 'Roboto', sans-serif; }
.preview-card.font-display { font-family: 'Playfair Display', serif; }
.preview-card.font-mono { font-family: 'IBM Plex Sans', sans-serif; }

.quiz-help {
  border: 1px dashed var(--border);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 8px;
  color: var(--muted);
  background: #fff;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  background: #1c1c1a;
  color: #fff;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.2s ease;
  pointer-events: none;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.step-block { display: grid; gap: 12px; }
.step-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: #fff;
  display: grid;
  gap: 10px;
}
.step-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.step-options { display: grid; gap: 8px; }
.option-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }

@media (max-width: 980px) {
  .grid-2 { grid-template-columns: 1fr; }
  .preview { position: static; }
}

@media (max-width: 720px) {
  .app-view { padding: 16px; }
  .panel { padding: 16px; }
  .panel-header { flex-direction: column; align-items: flex-start; }
  .topbar { flex-direction: column; align-items: flex-start; gap: 10px; }
  .toast { right: 12px; bottom: 12px; }
}