/* ══════════════════════════════════════════════════════════════
 *  Amazon Ads Manager — Design System
 *  Style:  Soft Modernism  (Notion / Loom energy)
 *  Font:   Plus Jakarta Sans
 *  Palette: B2B Professional (near-black navy + vivid blue CTA)
 * ══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  /* ── New palette ── */
  --color-bg:             #FAFAFA;
  --color-surface:        #FFFFFF;
  --color-surface-alt:    #F4F7FB;
  --color-surface-hover:  #EEF2F8;

  --color-primary:        #2563EB;
  --color-primary-hover:  #1D4ED8;
  --color-primary-dark:   #1E40AF;
  --color-primary-light:  #EFF6FF;

  --color-text:           #0F172A;
  --color-text-muted:     #64748B;
  --color-text-subtle:    #94A3B8;

  --color-border:         #E2E8F0;
  --color-border-light:   #F1F5F9;

  --color-success:        #059669;
  --color-success-bg:     #ECFDF5;
  --color-warning:        #D97706;
  --color-warning-bg:     #FFFBEB;
  --color-danger:         #DC2626;
  --color-danger-bg:      #FEF2F2;

  /* ── Typography ── */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;

  /* ── Shadows (tuned for #0F172A base) ── */
  --shadow-xs: 0 1px 2px rgba(15,23,42,.04);
  --shadow-sm: 0 1px 3px rgba(15,23,42,.07), 0 1px 2px rgba(15,23,42,.05);
  --shadow:    0 4px 6px -1px rgba(15,23,42,.07), 0 2px 4px -2px rgba(15,23,42,.05);
  --shadow-md: 0 10px 15px -3px rgba(15,23,42,.08), 0 4px 6px -4px rgba(15,23,42,.05);

  /* ── Radii ── */
  --radius-sm:   .25rem;
  --radius:      .5rem;
  --radius-md:   .75rem;
  --radius-lg:   1rem;
  --radius-full: 9999px;

  /* ── Transitions ── */
  --transition-fast: 150ms cubic-bezier(0,0,0.2,1);
  --transition:      200ms cubic-bezier(0,0,0.2,1);

  /* ── Legacy aliases (keeps old variable references working) ── */
  --amazon-orange:      var(--color-primary);
  --amazon-orange-dark: var(--color-primary-hover);
  --dark-navy:          var(--color-text);
  --slate:              #1E293B;
  --light-grey:         var(--color-surface-alt);
  --mid-grey:           var(--color-border);
  --green:              var(--color-success);
  --red:                var(--color-danger);
  --yellow:             var(--color-warning);
}


/* ── Base ──────────────────────────────────────────────────────────────────── */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}


/* ── Navbar ────────────────────────────────────────────────────────────────── */
.navbar-custom {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(250,250,250,.92);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid rgba(226,232,240,.8);
  box-shadow: 0 1px 0 rgba(15,23,42,.04);
  padding: 0.45rem 0;
}

/* Logo image */
.navbar-logo {
  height: 44px;
  width: auto;
  display: block;
}

/* Fallback text (shown only if logo image fails to load) */
.brand-fallback { display: none; }
.brand-icon {
  font-size: 1.4rem;
  color: var(--color-primary);
}
.brand-text {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--color-text);
}

/* Nav buttons */
.btn-nav {
  color: var(--color-text-muted);
  border: 1px solid transparent;
  font-weight: 500;
  font-size: 0.83rem;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}
.btn-nav:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-nav.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}


/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn-amazon {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(37,99,235,.2), inset 0 1px 0 rgba(255,255,255,.12);
  transition: all var(--transition-fast);
}
.btn-amazon:hover, .btn-amazon:focus {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37,99,235,.28), inset 0 1px 0 rgba(255,255,255,.12);
  transform: translateY(-1px);
}
.btn-amazon:active { transform: translateY(0); }
.text-amazon { color: var(--color-primary) !important; }


/* ── Card headers ──────────────────────────────────────────────────────────── */
.card-header-custom {
  background: var(--color-surface-alt);
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 1rem;
}
.card-header-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  font-weight: 600;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(220,38,38,.15);
  padding: 0.75rem 1rem;
}


/* ── Metric cards ──────────────────────────────────────────────────────────── */
.metric-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-primary);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.metric-icon {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 0.2rem;
}
.metric-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  font-weight: 600;
}
.metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}


/* ── Concern items ─────────────────────────────────────────────────────────── */
.concern-item {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}
.concern-item:last-child { border-bottom: none; }
.concern-high   { border-left: 4px solid var(--color-danger); }
.concern-medium { border-left: 4px solid var(--color-warning); }
.concern-low    { border-left: 4px solid #0891B2; }

.severity-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
  margin-top: 2px;
}
.severity-high   { background: var(--color-danger);  color: #fff; }
.severity-medium { background: var(--color-warning);  color: #fff; }
.severity-low    { background: #0891B2;               color: #fff; }

.concern-table {
  font-size: 0.82rem;
  background: var(--color-surface-alt);
  border-radius: var(--radius);
  overflow: hidden;
}
.concern-table td { padding: 4px 8px; border: none; }


/* ── Status dots ───────────────────────────────────────────────────────────── */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  flex-shrink: 0;
}
.status-good    { background: var(--color-success); }
.status-warning { background: var(--color-warning); }
.status-danger  { background: var(--color-danger); }


/* ── Data tables ───────────────────────────────────────────────────────────── */
.data-table { font-size: 0.84rem; }
.data-table thead th {
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-border) !important;
  border-top: none;
  padding: 0.6rem 0.75rem;
}
.data-table tbody tr:hover { background: var(--color-surface-alt); }
.data-table tbody td { padding: 0.5rem 0.75rem; vertical-align: middle; }


/* ── Drop zone ─────────────────────────────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.drop-zone.drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.drop-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  display: block;
  margin-bottom: 0.6rem;
}


/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero-icon {
  font-size: 3.5rem;
  color: var(--color-primary);
  display: block;
}


/* ── Step cards ────────────────────────────────────────────────────────────── */
.step-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.2rem 0.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}
.step-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
}
.step-title {
  font-weight: 700;
  font-size: 0.9rem;
  margin: 4px 0 2px;
}
.step-desc { font-size: 0.78rem; color: var(--color-text-muted); }


/* ── Settings page ─────────────────────────────────────────────────────────── */
.setup-step {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}
.setup-step-num {
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: var(--color-primary);
  border-radius: 50%;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  flex-shrink: 0;
}
.code-block {
  background: #1e1e2e;
  color: #cdd6f4;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-all;
}
.setup-list { padding-left: 1.2rem; }
.setup-list li { margin-bottom: 0.5rem; font-size: 0.9rem; }


/* ── Loading overlay ───────────────────────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.72);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.loading-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem 3rem;
  text-align: center;
  box-shadow: 0 24px 48px rgba(15,23,42,.18);
  min-width: 280px;
  border: 1px solid var(--color-border-light);
}


/* ── AI suggestions panel ──────────────────────────────────────────────────── */
.suggestion-section { margin-bottom: 1rem; }
.suggestion-section h6 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.suggestion-action {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
}
.suggestion-action:last-child { border-bottom: none; }
.action-num {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.75rem;
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.action-title { font-weight: 600; font-size: 0.85rem; }
.action-detail { font-size: 0.8rem; color: var(--color-text-muted); }
.action-impact { font-size: 0.75rem; color: var(--color-success); font-style: italic; }

.kw-badge {
  display: inline-block;
  background: #ECFDF5;
  color: #065F46;
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-size: 0.78rem;
  margin: 2px;
  font-weight: 500;
}
.neg-badge {
  display: inline-block;
  background: var(--color-danger-bg);
  color: #991B1B;
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-size: 0.78rem;
  margin: 2px;
  font-weight: 500;
}


/* ── Status bar ────────────────────────────────────────────────────────────── */
#statusBar {
  margin-bottom: 1rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
}


/* ── History page ──────────────────────────────────────────────────────────── */
.client-header { padding: 0.4rem 0; }

.client-avatar {
  width: 42px;
  height: 42px;
  min-width: 42px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.history-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
  border: 1px solid var(--color-border);
}
.history-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.history-card-header {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-surface-alt);
}

.history-metrics {
  display: flex;
  padding: 0.75rem 1rem;
  gap: 0.5rem;
}
.hm-item {
  flex: 1;
  text-align: center;
  padding: 0.4rem 0;
}
.hm-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--color-text-muted);
  font-weight: 600;
}
.hm-value {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.history-tag {
  display: inline-block;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 1px 8px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-right: 4px;
  margin-bottom: 4px;
}

.history-card-footer {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  gap: 0.5rem;
  align-items: center;
}


/* ── Report upload slots ───────────────────────────────────────────────────── */
.report-slots {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.report-slot {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-fast);
}
.report-slot:last-child { border-bottom: none; }
.report-slot:hover { background: var(--color-surface-alt); }
.report-slot.slot-has-file { background: var(--color-success-bg); }
.report-slot-icon {
  font-size: 1.4rem;
  min-width: 28px;
  text-align: center;
  color: var(--color-primary);
}
.report-slot-meta { flex: 1; min-width: 0; }
.report-slot-title {
  font-weight: 600;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.report-slot-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 1px;
}
.report-slot-controls {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.slot-pick-btn { white-space: nowrap; }
.slot-filename {
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.slot-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.badge-recommended { background: var(--color-warning-bg);   color: #92400E; }
.badge-optional     { background: var(--color-surface-alt);  color: var(--color-text-muted); }


/* ── Dashboard tabs ────────────────────────────────────────────────────────── */
.nav-tabs-dashboard {
  border-bottom: 2px solid var(--color-border);
  gap: 0.25rem;
}
.nav-tabs-dashboard .nav-link {
  border: none;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
  margin-bottom: -2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.nav-tabs-dashboard .nav-link:hover {
  color: var(--color-text);
  border-bottom-color: var(--color-border);
}
.nav-tabs-dashboard .nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: transparent;
}
.tab-content-dashboard { background: transparent; }
.tab-content-dashboard .tab-pane { padding-top: 1.25rem; }


/* ── Placement recommendation cards ───────────────────────────────────────── */
.placement-rec { padding: 0.25rem 0; }


/* ── Suggestions source indicator ─────────────────────────────────────────── */
.suggestions-source {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  font-weight: 500;
}
.suggestions-source--ai {
  background: linear-gradient(135deg, #EDE9FE, #DBEAFE);
  color: #4338CA;
  border: 1px solid #C7D2FE;
}
.suggestions-source--rules {
  background: var(--color-success-bg);
  color: #065F46;
  border: 1px solid #A7F3D0;
}
.suggestions-source-hint {
  font-weight: 400;
  color: var(--color-text-muted);
}
.suggestions-source-hint a {
  color: var(--color-primary);
  text-decoration: none;
}
.suggestions-source-hint a:hover { text-decoration: underline; }


/* ── Segmentation segment cards ────────────────────────────────────────────── */
.segment-card {
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid;
}


/* ── Forecasting ───────────────────────────────────────────────────────────── */
.forecast-metric {
  padding: 0.4rem;
  background: var(--color-surface-alt);
  border-radius: var(--radius);
}
.forecast-label {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--color-text-muted);
  font-weight: 600;
}
.forecast-value {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.forecast-sub {
  font-size: .68rem;
  color: var(--color-text-subtle);
}


/* ── Tag input widget ──────────────────────────────────────────────────────── */
.tag-input-container {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: flex-start;
  align-content: flex-start;
  padding: 6px 10px;
  height: auto;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-success-bg);
  color: #065F46;
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-size: .8rem;
  font-weight: 500;
}
.tag-chip.competitor { background: var(--color-danger-bg); color: #991B1B; }
.tag-chip.category   { background: var(--color-primary-light); color: var(--color-primary-dark); }
.tag-chip-remove {
  background: none;
  border: none;
  color: inherit;
  padding: 0;
  cursor: pointer;
  font-size: .75rem;
  line-height: 1;
  opacity: .7;
}
.tag-chip-remove:hover { opacity: 1; }
.tag-input {
  border: none;
  outline: none;
  font-size: .85rem;
  min-width: 120px;
  flex: 1;
  background: transparent;
  font-family: var(--font-sans);
}


/* ── Responsive tweaks ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .metric-value { font-size: 1.2rem; }
  .data-table { font-size: 0.76rem; }
  .report-slot { flex-wrap: wrap; }
  .slot-filename { max-width: 120px; }
  .navbar .d-flex { gap: 0.25rem !important; }
  .btn-nav { font-size: .75rem !important; padding: .3rem .5rem; }
}