/* ============================================================
   E-Commerce Dashboard — style.css
   Motyw: Ciemny (dark) z akcentami fioletowymi
   Responsywny: desktop ≥1280px, tablet ≥768px, mobile <768px
   ============================================================ */

/* ── Variables ────────────────────────────────────────────── */
:root {
  --bg-primary:    #0F1117;
  --bg-secondary:  #1A1F2E;
  --bg-card:       #1E2435;
  --bg-hover:      #252B3D;
  --bg-input:      #252B3D;

  --border:        #2D3450;
  --border-light:  #363D55;

  --text-primary:  #E2E8F0;
  --text-secondary:#A0AEC0;
  --text-muted:    #718096;

  --accent-purple: #6C63FF;
  --accent-cyan:   #4ECDC4;
  --accent-red:    #FF6B6B;
  --accent-yellow: #FFE66D;
  --accent-green:  #2ECC71;
  --accent-blue:   #3498DB;

  --sidebar-w: 240px;
  --sidebar-collapsed-w: 64px;
  --topbar-h:  64px;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: 0.2s ease;
}

/* ── Light theme ──────────────────────────────────────────── */
[data-theme="light"] {
  --bg-primary:    #F7F8FC;
  --bg-secondary:  #FFFFFF;
  --bg-card:       #FFFFFF;
  --bg-hover:      #F0F2F8;
  --bg-input:      #F0F2F8;
  --border:        #E2E6F0;
  --border-light:  #CDD3E8;
  --text-primary:  #1A202C;
  --text-secondary:#4A5568;
  --text-muted:    #718096;
}

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 14px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }
input, select, textarea { font-family: var(--font); }
code { font-family: 'Fira Code', 'Courier New', monospace; }

/* ── Utility ──────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ══════════════════════════════════════════════════════════════
   LOGIN SCREEN
══════════════════════════════════════════════════════════════ */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 30% 40%, rgba(108,99,255,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 70%, rgba(78,205,196,0.10) 0%, transparent 60%),
              var(--bg-primary);
  padding: 1rem;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 440px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease;
}

.login-logo {
  width: 72px; height: 72px;
  margin: 0 auto 1.25rem;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; color: #fff;
  box-shadow: 0 8px 24px rgba(108,99,255,0.4);
}

.login-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.login-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.login-error {
  background: rgba(255,107,107,0.1);
  border: 1px solid rgba(255,107,107,0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-red);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  text-align: left;
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: #fff;
  color: #3c4043;
  border: 1px solid #dadce0;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.btn-google:hover:not(:disabled) {
  background: #f8f9fa;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  transform: translateY(-1px);
}

.btn-google:disabled { opacity: 0.6; cursor: not-allowed; }

.google-icon { width: 20px; height: 20px; flex-shrink: 0; }

.login-demo {
  margin: 1.5rem 0 0;
  padding: 1rem;
  background: rgba(108,99,255,0.05);
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius-sm);
  text-align: left;
}

.login-demo p { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.5rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.login-demo ul { list-style: none; }
.login-demo li { font-size: 0.85rem; color: var(--text-secondary); padding: 0.2rem 0; display: flex; align-items: center; gap: 0.4rem; }
.login-demo li i { color: var(--accent-green); font-size: 0.75rem; }

.login-setup-hint {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  text-align: left;
}
.login-setup-hint i { color: var(--accent-blue); margin-top: 1px; }
.login-setup-hint code { background: var(--bg-input); padding: 1px 5px; border-radius: 3px; font-size: 0.75rem; }

.login-demo-btn-wrap { margin-top: 1.25rem; }

.btn-demo {
  padding: 0.6rem 1.25rem;
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.82rem;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn-demo:hover { border-color: var(--accent-purple); color: var(--accent-purple); }

/* ══════════════════════════════════════════════════════════════
   DASHBOARD LAYOUT
══════════════════════════════════════════════════════════════ */
.dashboard {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ─────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 100;
  transition: width var(--transition);
  overflow: hidden;
}

.sidebar.collapsed { width: var(--sidebar-collapsed-w); }
.sidebar.collapsed .sidebar-logo span,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .user-info { display: none; }

.sidebar-header {
  height: var(--topbar-h);
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-purple);
  white-space: nowrap;
}

.sidebar-logo i {
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-toggle {
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0.4rem;
  border-radius: 6px;
  transition: all var(--transition);
}
.sidebar-toggle:hover { background: var(--bg-hover); color: var(--text-primary); }

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.nav-section-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.75rem 1.25rem 0.25rem;
  white-space: nowrap;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: 0;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}

.nav-item i { font-size: 1rem; width: 16px; flex-shrink: 0; }
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active {
  background: rgba(108,99,255,0.12);
  color: var(--accent-purple);
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent-purple);
  border-radius: 0 2px 2px 0;
}

.sidebar-user {
  padding: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  min-width: 0;
}

.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--border);
  display: none;
}

.user-info { flex: 1; min-width: 0; }
.user-name  { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-email { display: block; font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.btn-logout {
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0.4rem;
  border-radius: 6px;
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-logout:hover { color: var(--accent-red); background: rgba(255,107,107,0.1); }

/* ── MAIN CONTENT ────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: margin-left var(--transition);
  min-height: 100vh;
}

.main-content.expanded { margin-left: var(--sidebar-collapsed-w); }

/* ── TOPBAR ──────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 1rem;
}

.topbar-left { display: flex; align-items: center; gap: 0.75rem; }
.topbar-right { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; justify-content: flex-end; }

.topbar-toggle {
  display: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  padding: 0.4rem;
  border-radius: 6px;
}
.topbar-toggle:hover { background: var(--bg-hover); color: var(--text-primary); }

.page-title { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); }

.date-range-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.75rem;
}
.date-range-wrap i { color: var(--text-muted); font-size: 0.85rem; }
.date-range-wrap select {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
}

.header-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  color: var(--text-secondary);
  font-size: 0.8rem;
  max-width: 160px;
  outline: none;
}
.header-select:focus { border-color: var(--accent-purple); }

.btn-icon {
  width: 36px; height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
}
.btn-icon:hover { border-color: var(--accent-purple); color: var(--accent-purple); }

.export-dropdown { position: relative; }

.btn-export {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--accent-purple);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(108,99,255,0.3);
}
.btn-export:hover { background: #5a52d5; transform: translateY(-1px); }

.export-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 160px;
  z-index: 200;
  overflow: hidden;
}

.export-menu button {
  display: flex; align-items: center; gap: 0.6rem;
  width: 100%;
  padding: 0.65rem 1rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all var(--transition);
}
.export-menu button:hover { background: var(--bg-hover); color: var(--text-primary); }
.export-menu button i { width: 16px; color: var(--text-muted); }

/* ── LOADING OVERLAY ─────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,17,23,0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 500;
  gap: 1rem;
}

.spinner {
  width: 44px; height: 44px;
  border: 3px solid var(--border);
  border-top-color: var(--accent-purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-overlay p { color: var(--text-secondary); font-size: 0.9rem; }

/* ── SECTIONS ────────────────────────────────────────────── */
.section {
  padding: 1.5rem;
  flex: 1;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.section-head h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.section-date {
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
}

/* ── KPI GRID ────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.kpi-card:hover { border-color: var(--border-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.kpi-card.kpi-highlight {
  border-color: rgba(108,99,255,0.4);
  background: linear-gradient(135deg, rgba(108,99,255,0.08), var(--bg-card));
}

.kpi-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.kpi-body { flex: 1; min-width: 0; }
.kpi-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.3rem; font-weight: 500; }
.kpi-value { font-size: 1.35rem; font-weight: 700; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi-sub   { font-size: 0.75rem; color: var(--accent-green); margin-top: 0.2rem; }

/* ── CHARTS ──────────────────────────────────────────────── */
.charts-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition);
  overflow: hidden;
}

.chart-card:hover { border-color: var(--border-light); }
.chart-card.wide  { grid-column: span 2; }
.chart-card.full  { grid-column: 1 / -1; }

.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chart-card-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-container canvas { display: block; }

/* ── TABLES ──────────────────────────────────────────────── */
.table-container {
  overflow-x: auto;
  max-height: 380px;
  overflow-y: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}

.data-table th {
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.72rem;
  padding: 0.65rem 0.75rem;
  text-align: left;
  position: sticky;
  top: 0;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.6rem 0.75rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.03);
  white-space: nowrap;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-hover); color: var(--text-primary); }
.data-table .td-url { max-width: 200px; overflow: hidden; text-overflow: ellipsis; }
.data-table .td-positive { color: var(--accent-green); font-weight: 600; }
.data-table .td-negative { color: var(--accent-red); font-weight: 600; }

/* Status badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-enabled { background: rgba(46,204,113,0.15); color: var(--accent-green); }
.status-paused  { background: rgba(255,230,109,0.15); color: var(--accent-yellow); }
.status-removed { background: rgba(255,107,107,0.15); color: var(--accent-red); }

/* ── REPORTS GRID ────────────────────────────────────────── */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.report-card:hover {
  border-color: var(--accent-purple);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(108,99,255,0.15);
}

.report-card i {
  font-size: 2rem;
  color: var(--accent-purple);
  margin-bottom: 1rem;
  display: block;
}

.report-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--text-primary); }
.report-card p  { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 1.25rem; }

.btn-gen {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  color: #fff;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(108,99,255,0.3);
}

/* ── SETTINGS ────────────────────────────────────────────── */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  align-items: start;
}

.settings-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.settings-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.settings-card h3 i { color: var(--accent-purple); }

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus { border-color: var(--accent-purple); }
.form-group input::placeholder { color: var(--text-muted); }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-purple);
  color: #fff;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(108,99,255,0.3);
}
.btn-primary:hover { background: #5a52d5; transform: translateY(-1px); }

.setup-steps {
  padding-left: 1.2rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.8;
}
.setup-steps li { margin-bottom: 0.3rem; }
.setup-steps a { color: var(--accent-purple); text-decoration: underline; }
.setup-steps strong { color: var(--text-primary); }
.setup-steps code { background: var(--bg-input); padding: 1px 5px; border-radius: 3px; font-size: 0.8rem; }

/* ── TOAST ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: fadeInUp 0.3s ease;
}

.toast-success { background: #1a3a2a; border: 1px solid var(--accent-green); color: var(--accent-green); }
.toast-error   { background: #3a1a1a; border: 1px solid var(--accent-red); color: var(--accent-red); }
.toast-warning { background: #3a2f10; border: 1px solid var(--accent-yellow); color: var(--accent-yellow); }
.toast-info    { background: #1a2a3a; border: 1px solid var(--accent-blue); color: var(--accent-blue); }

/* ── ANIMATIONS ──────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════ */

/* ── Tablet (≤1024px) ───────────────────────────────────── */
@media (max-width: 1024px) {
  .chart-card.wide { grid-column: span 1; }
  .kpi-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

/* ── Mobile (≤768px) ─────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .main-content.expanded { margin-left: 0; }
  .topbar-toggle { display: flex; }

  .topbar-right .date-range-wrap { display: none; }
  .header-select { display: none; }

  .section { padding: 1rem; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .charts-row { grid-template-columns: 1fr; }
  .chart-card.wide, .chart-card.full { grid-column: span 1; }

  .reports-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-grid { grid-template-columns: 1fr; }

  .topbar { padding: 0 1rem; gap: 0.5rem; }
  .page-title { font-size: 0.95rem; }
  .btn-export span { display: none; }

  .toast { font-size: 0.8rem; padding: 0.6rem 1rem; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .reports-grid { grid-template-columns: 1fr; }
  .kpi-value { font-size: 1.1rem; }
}

/* ── Scrollbar styling ───────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ── Selection ───────────────────────────────────────────── */
::selection { background: rgba(108,99,255,0.3); color: var(--text-primary); }

/* ── Light theme adjustments ─────────────────────────────── */
[data-theme="light"] .btn-google { box-shadow: 0 2px 6px rgba(0,0,0,0.1); }
[data-theme="light"] .sidebar { box-shadow: 2px 0 12px rgba(0,0,0,0.08); }
[data-theme="light"] .chart-card { box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
[data-theme="light"] .kpi-card  { box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
[data-theme="light"] .status-enabled { background: #dcfce7; color: #15803d; }
[data-theme="light"] .status-paused  { background: #fef9c3; color: #854d0e; }
[data-theme="light"] .toast-success  { background: #f0fdf4; }
[data-theme="light"] .toast-error    { background: #fef2f2; }
[data-theme="light"] .toast-info     { background: #eff6ff; }