/* =========================================================
   GOOGLE ADS WORKSHOP BUILDER — Design System
   ========================================================= */

:root {
  --ink:          #0f172a;
  --ink-mid:      #334155;
  --muted:        #64748b;
  --border:       #e2e8f0;
  --bg:           #f8fafc;
  --surface:      #ffffff;
  --primary:      #4f46e5;
  --primary-dark: #3730a3;
  --primary-light:#eef2ff;
  --accent:       #06b6d4;
  --success:      #10b981;
  --success-bg:   #ecfdf5;
  --warning:      #f59e0b;
  --warning-bg:   #fffbeb;
  --danger:       #ef4444;
  --danger-bg:    #fef2f2;
  --radius:       10px;
  --radius-lg:    16px;
  --shadow:       0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:    0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
  --shadow-lg:    0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 15px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ── TOPBAR ──────────────────────────────────────────────── */
.topbar {
  background: var(--ink);
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -.3px;
}
.topbar-brand-icon {
  width: 28px; height: 28px;
  background: var(--primary);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.topbar-sub {
  font-size: 11px;
  font-weight: 400;
  opacity: .5;
  letter-spacing: .4px;
  text-transform: uppercase;
}
.topbar-nav { display: flex; gap: 8px; }
.topbar-nav a {
  color: rgba(255,255,255,.6);
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all .15s;
}
.topbar-nav a:hover { color: #fff; background: rgba(255,255,255,.08); }

/* ── STEPPER ─────────────────────────────────────────────── */
.stepper {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
}
.stepper-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 0;
}
.step {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  position: relative;
}
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  width: calc(50% - 20px);
  height: 1px;
  background: var(--border);
  transform: translateY(-50%);
}
.step.done:not(:last-child)::after { background: var(--primary); }
.step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  background: var(--surface);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.step.active .step-num {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.step.done .step-num {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}
.step-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
}
.step.active .step-label { color: var(--primary); }
.step.done .step-label   { color: var(--ink); }

/* ── LAYOUT ──────────────────────────────────────────────── */
.page { max-width: 900px; margin: 0 auto; padding: 40px 32px 80px; }
.page-sm { max-width: 640px; }

/* ── PAGE HEADER ─────────────────────────────────────────── */
.page-header { margin-bottom: 32px; }
.page-header h1 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--ink);
}
.page-header p { color: var(--muted); margin-top: 4px; font-size: 14px; }

/* ── CARD ────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.card-header-icon {
  width: 36px; height: 36px;
  background: var(--primary-light);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.card-header h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}
.card-header p {
  font-size: 12px;
  color: var(--muted);
  margin-top: 1px;
}
.card-body { padding: 24px; }
.card + .card { margin-top: 20px; }

/* ── FORM ────────────────────────────────────────────────── */
.field { margin-bottom: 20px; }
.field:last-child { margin-bottom: 0; }
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.field label .req { color: var(--danger); margin-left: 2px; }
.field .hint {
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
}
.field input[type="text"],
.field input[type="url"],
.field input[type="number"],
.field input[type="email"],
.field textarea,
.field select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: var(--surface);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
.field textarea { resize: vertical; min-height: 88px; }
.field select { cursor: pointer; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }

/* ── RADIO CARDS ─────────────────────────────────────────── */
.radio-cards { display: grid; gap: 10px; }
.radio-cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
.radio-cards.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 560px) { .radio-cards.cols-3, .radio-cards.cols-2 { grid-template-columns: 1fr; } }

.radio-card { display: none; }
.radio-card + label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .15s;
}
.radio-card + label:hover { border-color: var(--primary); background: var(--primary-light); }
.radio-card:checked + label {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
}
.radio-icon { font-size: 20px; line-height: 1; }
.radio-title { font-size: 13px; font-weight: 600; color: inherit; }
.radio-desc  { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all .15s;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--ink-mid);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  padding: 8px 12px;
}
.btn-ghost:hover { background: var(--bg); color: var(--ink); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }
.btn-lg { padding: 13px 28px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }

.btn-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ── PROJECT CARDS (dashboard) ───────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all .15s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}
.project-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  color: inherit;
}
.project-card-tipo {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 6px;
}
.project-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.project-card-meta { font-size: 12px; color: var(--muted); }
.project-card-paso {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.paso-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
}
.paso-dot.done { background: var(--success); }
.paso-dot.active { background: var(--primary); }
.paso-label { font-size: 11px; color: var(--muted); }

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--muted);
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h2 { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.empty-state p   { font-size: 14px; margin-bottom: 24px; }

/* ── BLOQUE HEADER (dentro del formulario) ───────────────── */
.bloque-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px; height: 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

/* ── AI RESULT PANELS ────────────────────────────────────── */
.result-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 20px;
}
.result-panel-head {
  background: var(--ink);
  color: #fff;
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.result-panel-body { padding: 20px; }

/* keyword table */
.kw-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.kw-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--muted);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.kw-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.kw-table tr:last-child td { border-bottom: none; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}
.badge-exact  { background: #dbeafe; color: #1e40af; }
.badge-frase  { background: #dcfce7; color: #166534; }
.badge-amplia { background: #fef3c7; color: #92400e; }

/* negative keywords */
.neg-group { margin-bottom: 16px; }
.neg-group-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-mid);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.neg-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.neg-tag {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #fecaca;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
}

/* RSA ad cards */
.ad-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 14px;
}
.ad-card-head {
  background: var(--bg);
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}
.ad-card-body { padding: 14px; }
.ad-headlines { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.hl-chip {
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
}
.ad-descs { display: flex; flex-direction: column; gap: 6px; }
.desc-item {
  font-size: 13px;
  color: var(--ink-mid);
  padding: 6px 10px;
  background: var(--bg);
  border-radius: 6px;
}

/* ── ALERT ───────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.alert-info    { background: var(--primary-light); color: var(--primary-dark); }
.alert-success { background: var(--success-bg); color: #065f46; }
.alert-warning { background: var(--warning-bg); color: #78350f; }

/* ── LOADING ─────────────────────────────────────────────── */
.loading-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-title { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.loading-sub   { font-size: 13px; }

/* ── CHECKLIST ───────────────────────────────────────────── */
.checklist { list-style: none; }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.checklist li:last-child { border-bottom: none; }
.checklist input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--primary);
  margin-top: 1px;
  flex-shrink: 0;
  cursor: pointer;
}
.check-text { font-size: 13px; color: var(--ink-mid); }
.check-text strong { color: var(--ink); }
.checklist input:checked ~ .check-text { text-decoration: line-through; color: var(--muted); }

/* ── SUMMARY BOX ─────────────────────────────────────────── */
.summary-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: 13px;
}
.summary-box-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--muted);
  margin-bottom: 10px;
}
.summary-row {
  display: flex;
  gap: 8px;
  margin-bottom: 6px;
}
.summary-row:last-child { margin-bottom: 0; }
.summary-label { color: var(--muted); min-width: 130px; flex-shrink: 0; }
.summary-value { color: var(--ink); font-weight: 500; }

/* ── UTILITIES ───────────────────────────────────────────── */
.text-muted   { color: var(--muted); }
.text-sm      { font-size: 13px; }
.text-xs      { font-size: 11px; }
.fw-bold      { font-weight: 700; }
.mt-4         { margin-top: 16px; }
.mt-6         { margin-top: 24px; }
.gap-8        { gap: 8px; }
.flex         { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }

@media (max-width: 640px) {
  .topbar { padding: 0 16px; }
  .page   { padding: 24px 16px 60px; }
  .stepper { padding: 0 16px; }
  .step-label { display: none; }
}