/* ================================================
   REGENEXT — RESPONSIVE.CSS
   Only @media queries — no base style overrides.
   Breakpoints: 1200 | 1024 | 900 | 768 | 600 | 480 | 360
   ================================================ */

/* Scrollbar polish */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll::-webkit-scrollbar { height: 4px; }
.table-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 2px; }
.sidebar::-webkit-scrollbar { width: 3px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }
.settings-tabs::-webkit-scrollbar { height: 2px; }

/* Overflow safety */
body { overflow-x: hidden; }
.main-content { min-width: 0; }
.navbar-title  { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.data-table    { width: 100%; min-width: 500px; }
.data-table th, .data-table td { white-space: nowrap; }
.table-header-bar { flex-wrap: wrap; gap: 10px; }

/* ================================================
   1200px
   ================================================ */
@media (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .team-quick-stats { grid-template-columns: repeat(2, 1fr); }
  .ref-stats-grid   { grid-template-columns: repeat(2, 1fr); }
  .admin-grid-3     { grid-template-columns: 1.5fr 1fr; }
  .charts-row       { grid-template-columns: 1.5fr 1fr; }
}

/* ================================================
   1024px
   ================================================ */
@media (max-width: 1024px) {
  :root { --sidebar-width: 230px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .nav-user-chip span { display: none; }
  .search-bar { max-width: 170px; }
  /* commission-split collapses at 900px instead */
  .profile-grid { grid-template-columns: 1fr; }
  .admin-grid-3 { grid-template-columns: 1fr; }
  .charts-row   { grid-template-columns: 1fr; }
  .form-group-grid { grid-template-columns: 1fr 1fr; }
}

/* ================================================
   900px
   ================================================ */
@media (max-width: 900px) {
  /* grid-2 stays 2-col until 768px */
  .plan-grid { max-width: 380px; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-mission-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .balance-bar { grid-template-columns: 1fr 1fr; }
  .wallet-hero-card { padding: 20px; }
  .wallet-balance-value { font-size: 1.8rem; }
  .profile-hero-content { flex-direction: column; align-items: flex-start; }
  .profile-hero-stats { margin-left: 0; }
  .tree-level { gap: 10px; }
  .tree-avatar { width: 38px; height: 38px; font-size: 0.72rem; }
}

/* ================================================
   768px  — Mobile breakpoint
   ================================================ */
@media (max-width: 768px) {
  /* Sidebar */
  :root { --sidebar-width: 240px; }
  .sidebar { transform: translateX(-100%); transition: transform 0.3s ease; }
  .sidebar.open { transform: translateX(0); box-shadow: 4px 0 48px rgba(0,0,0,0.7); }
  .main-content { margin-left: 0 !important; }
  .top-navbar   { left: 0 !important; padding: 0 14px; gap: 8px; }
  .hamburger, .sidebar-toggle { display: flex !important; }

  /* Topbar */
  .search-bar    { display: none; }
  .nav-user-chip { display: none; }
  .topbar-avatar { width: 32px; height: 32px; font-size: 0.72rem; }

  /* Content spacing */
  .content-area, .page-content { padding: 14px; }
  .page-header  { flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
  .page-title   { font-size: 1.2rem; }
  .page-subtitle{ font-size: 0.8rem; }

  /* Grids */
  .grid-2, .grid-3 { grid-template-columns: 1fr; gap: 14px; }
  .commission-split { grid-template-columns: 1fr; }
  .grid-4          { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stats-row       { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stats-grid      { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .team-quick-stats{ grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .ref-stats-grid  { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .balance-bar     { grid-template-columns: 1fr 1fr; gap: 10px; }
  .features-grid   { grid-template-columns: 1fr; gap: 12px; }

  /* Cards */
  .glass-card  { padding: 16px; }
  .bg-card     { padding: 16px; }
  .stat-card   { padding: 14px; }
  .stat-value  { font-size: 1.3rem; }
  .stat-icon   { width: 38px; height: 38px; }
  .stat-icon svg { width: 18px !important; height: 18px !important; }

  /* Welcome banner */
  .admin-header-card { flex-direction: column; align-items: flex-start; padding: 16px; gap: 12px; }
  .ahc-right { flex-wrap: wrap; width: 100%; }
  .ahc-right .btn-primary, .ahc-right .btn-outline { flex: 1; justify-content: center; min-width: 120px; }

  /* Charts */
  .chart-wrap { height: 190px; }
  .chart-header { flex-wrap: wrap; gap: 8px; }

  /* Tables */
  .table-header-bar { flex-direction: column; align-items: flex-start; gap: 10px; padding: 14px; }
  .table-filters    { width: 100%; flex-wrap: wrap; gap: 8px; }
  .table-filters .filter-select { flex: 1; min-width: 120px; }
  .data-table th, .data-table td { padding: 10px 12px; font-size: 0.8rem; }

  /* Landing */
  .landing-nav-links, .landing-nav-actions { display: none !important; }
  .landing-hamburger { display: flex; }
  .hero   { padding: 88px 0 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .hero-visual { display: none; }
  .hero-actions { justify-content: center; flex-wrap: wrap; }
  .hero-stats   { justify-content: center; flex-wrap: wrap; gap: 20px; }
  .hero-title   { font-size: clamp(1.8rem, 6vw, 2.4rem); }
  .page-hero    { padding-top: calc(68px + 40px); padding-bottom: 40px; }
  .how-section, .features-section, .plans-section, .faq-section { padding: 60px 0; }
  .team-section { padding: 60px 0 80px; }
  .steps-grid   { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .team-grid    { grid-template-columns: 1fr; max-width: 300px; margin: 0 auto; }
  .footer-grid  { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .section-header { margin-bottom: 36px; }
  .about-stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Auth */
  .auth-wrap { grid-template-columns: 1fr !important; }
  .auth-visual { display: none !important; }
  .auth-form-panel { padding: 32px 22px; }
  .row2, .form-row-2 { grid-template-columns: 1fr; }

  /* Profile */
  .profile-grid { grid-template-columns: 1fr; }
  .form-group-grid { grid-template-columns: 1fr; }
  .profile-hero-card { padding: 18px; }
  .profile-hero-content { flex-direction: column; align-items: flex-start; }
  .profile-hero-stats { margin-left: 0; gap: 16px; }

  /* Wallet */
  .wallet-hero-card { padding: 16px; }
  .wallet-balance-value { font-size: 1.6rem; }
  .wallet-hero-actions { flex-wrap: wrap; }
  .wallet-hero-actions a { flex: 1; justify-content: center; min-width: 120px; }

  /* Referral */
  .referral-hero { padding: 16px; }
  .referral-hero-top { flex-direction: column; align-items: flex-start; gap: 10px; }
  .referral-link-row { flex-wrap: wrap; gap: 8px; }
  .referral-link-input { width: 100%; min-width: 0; }
  .share-grid { grid-template-columns: repeat(2, 1fr); }

  /* Team network tree */
  .network-tree-card { overflow-x: auto; padding: 16px; }
  /* tree scales naturally */

  /* Modal */
  .modal { padding: 18px; margin: 16px; max-width: calc(100vw - 32px); }
  .modal-actions { flex-wrap: wrap; gap: 8px; }

  /* Quick amounts */
  .quick-amounts .btn-outline { flex: 1; min-width: 60px; }

  /* Settings tabs */
  .settings-tabs { overflow-x: auto; flex-wrap: nowrap; gap: 4px; padding-bottom: 4px; }
  .stab { padding: 7px 14px; font-size: 0.8rem; white-space: nowrap; }

  /* Plan */
  .plan-grid { max-width: 380px; }
  .plan-card { padding: 24px 18px; }
  .contact-form-card { padding: 20px; }
  .faq-list { max-width: 100%; }
  .toast-container { bottom: 12px; right: 12px; left: 12px; }
  .toast { min-width: unset; }
}

/* ================================================
   600px
   ================================================ */
@media (max-width: 600px) {
  .grid-4  { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .balance-bar { grid-template-columns: 1fr; gap: 8px; }
  .share-grid  { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-col ul { column-count: 2; }
  .page-header .btn-primary,
  .page-header .btn-outline { width: 100%; justify-content: center; }
  .navbar-actions a.btn-outline { display: none; }
  .tqs-card { padding: 12px 14px; gap: 10px; }
  .tqs-val  { font-size: 1.1rem; }
  .ref-stat-card { padding: 14px; }
  .ref-stat-value { font-size: 1.3rem; }
  .form-row-2 { grid-template-columns: 1fr; }
  .quick-amounts .btn-outline { flex: 1 1 45%; }
}

/* ================================================
   480px
   ================================================ */
@media (max-width: 480px) {
  .content-area, .page-content { padding: 10px; }
  .glass-card, .bg-card { padding: 12px; }
  .stat-card   { padding: 12px; }
  .stat-value  { font-size: 1.1rem; }
  .stat-icon   { width: 34px; height: 34px; border-radius: 10px; }
  .stat-icon svg { width: 16px !important; height: 16px !important; }
  .stats-row   { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .stats-grid  { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .chart-wrap  { height: 160px; }
  .hero-stats  { flex-direction: column; align-items: center; gap: 12px; }
  .steps-grid  { grid-template-columns: 1fr; }
  .plan-grid   { max-width: 100%; }
  .data-table th, .data-table td { padding: 8px 10px; font-size: 0.78rem; }
  .badge       { font-size: 0.65rem; padding: 2px 8px; }
  .modal-actions { flex-direction: column; }
  .modal-actions button { width: 100%; justify-content: center; }
  .chart-tab   { padding: 4px 10px; font-size: 0.75rem; }
  .referral-hero { padding: 14px; }
  .referral-link-row { flex-direction: column; }
  .referral-link-input { font-size: 0.75rem; padding: 8px 10px; }
  .profile-hero-card { padding: 14px; }
  .profile-photo { width: 64px; height: 64px; font-size: 1.4rem; }
  .tree-root   { min-width: 380px; }
  .tree-avatar { width: 32px; height: 32px; font-size: 0.62rem; }
  .tree-avatar.you { width: 42px; height: 42px; font-size: 0.8rem; }
  .wallet-hero-card { padding: 14px; }
  .wallet-balance-value { font-size: 1.4rem; }
  .page-hero { padding-top: calc(68px + 28px); padding-bottom: 28px; }
  .team-quick-stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .ref-stats-grid   { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .tqs-card   { padding: 10px 12px; }
  .tqs-val    { font-size: 1rem; }
  .tqs-lbl    { font-size: 0.68rem; }
  .tqs-icon   { width: 34px; height: 34px; }
}

/* ================================================
   360px
   ================================================ */
@media (max-width: 360px) {
  .content-area, .page-content { padding: 8px; }
  .glass-card, .bg-card { padding: 10px; }
  .stat-card { padding: 10px; }
  .stat-value { font-size: 1rem; }
  .page-title { font-size: 1rem; }
  .topbar-avatar { width: 28px; height: 28px; font-size: 0.65rem; }
  .data-table th, .data-table td { padding: 6px 8px; font-size: 0.72rem; }
  .hero-title { font-size: 1.6rem; }
  .section-title { font-size: 1.3rem; }
  .plan-card { padding: 18px 14px; }
  .feat-card { padding: 16px 12px; }
  .stats-row  { grid-template-columns: repeat(2, 1fr); gap: 6px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
  .team-quick-stats { gap: 6px; }
  .ref-stats-grid   { gap: 6px; }
  .sidebar.open { width: 100vw; }
}

/* ================================================
   PRINT
   ================================================ */
@media print {
  .sidebar, .top-navbar, .hamburger, .toast-container { display: none !important; }
  .main-content { margin-left: 0; padding-top: 0; }
  body { background: white; color: black; }
}