/* ==========================================================================
   LAYOUT — marketing site, app shell, admin shell, responsive
   ========================================================================== */

/* ---------- Marketing top nav ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(246,248,252,0.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-200);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:18px; color:var(--navy-900); }
.brand .mark{ width:34px; height:34px; flex-shrink:0; }
.brand .word{ font-family:var(--font-display); font-weight:600; font-size:20px; }

.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{ font-size:14.5px; font-weight:600; color:var(--ink-700); position:relative; padding:6px 0; }
.nav-links a:hover{ color:var(--blue-600); }
.nav-actions{ display:flex; align-items:center; gap:10px; }
.nav-toggle{ display:none; background:none; border:none; padding:8px; }

.site-footer{ background:var(--navy-900); color:rgba(255,255,255,0.75); padding:64px 0 28px; margin-top:120px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr repeat(4,1fr); gap:40px; padding-bottom:44px; border-bottom:1px solid rgba(255,255,255,0.12); }
.footer-grid h4{ color:#fff; font-size:13.5px; letter-spacing:.04em; margin-bottom:16px; font-family:var(--font-body); font-weight:700; }
.footer-grid ul li{ margin-bottom:10px; }
.footer-grid ul li a{ font-size:14px; color:rgba(255,255,255,0.68); }
.footer-grid ul li a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; font-size:13px; color:rgba(255,255,255,0.5); flex-wrap:wrap; gap:12px; }
.footer-legal-note{ font-size:12.5px; color:rgba(255,255,255,0.45); max-width:640px; line-height:1.6; margin-top:14px; }

/* ---------- App shell (customer portal) ---------- */
.app-shell{ display:grid; grid-template-columns:264px 1fr; min-height:100vh; }
.app-sidebar{
  background:var(--navy-900);
  color:rgba(255,255,255,0.82);
  padding:26px 18px;
  display:flex; flex-direction:column;
  position:sticky; top:0; height:100vh;
}
.app-sidebar .brand{ color:#fff; padding:0 10px; margin-bottom:34px; }
.side-nav{ display:flex; flex-direction:column; gap:3px; flex:1; }
.side-nav a{
  display:flex; align-items:center; gap:12px;
  padding:11px 14px; border-radius:11px;
  font-size:14.5px; font-weight:500; color:rgba(255,255,255,0.68);
  transition:background .15s var(--ease), color .15s var(--ease);
}
.side-nav a svg{ width:19px; height:19px; flex-shrink:0; opacity:0.85; }
.side-nav a:hover{ background:rgba(255,255,255,0.06); color:#fff; }
.side-nav a.active{ background:rgba(255,255,255,0.12); color:#fff; }
.side-nav a.active svg{ opacity:1; }
.side-divider{ height:1px; background:rgba(255,255,255,0.1); margin:14px 4px; }
.side-foot{ padding:14px 10px 4px; border-top:1px solid rgba(255,255,255,0.1); margin-top:10px; }
.side-user{ display:flex; align-items:center; gap:10px; }
.side-avatar{ width:36px; height:36px; border-radius:50%; background:var(--blue-600); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:13px; color:#fff; flex-shrink:0; }
.side-user .name{ font-size:13.5px; font-weight:600; color:#fff; }
.side-user .role{ font-size:12px; color:rgba(255,255,255,0.5); }

.app-main{ min-width:0; }
.app-topbar{
  height:76px; display:flex; align-items:center; justify-content:space-between;
  padding:0 32px; background:var(--white); border-bottom:1px solid var(--line-200);
  position:sticky; top:0; z-index:20;
}
.app-topbar h1{ font-size:21px; }
.topbar-actions{ display:flex; align-items:center; gap:14px; }
.app-content{ padding:32px; max-width:1180px; }
.sidebar-toggle{ display:none; background:none; border:none; }

/* ---------- Admin shell variant ---------- */
.admin-shell .app-sidebar{ background:var(--navy-950); }
.admin-shell .app-topbar{ background:var(--white); }
.admin-pill{ font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; background:rgba(255,255,255,0.08); color:var(--sky-400); padding:3px 9px; border-radius:6px; margin-left:8px; }

/* ---------- Grids ---------- */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.grid-dash{ display:grid; grid-template-columns:2fr 1fr; gap:24px; }

/* ---------- Mobile menu ---------- */
.mobile-menu{
  display:none; position:fixed; inset:0; z-index:200; background:var(--navy-900);
  padding:24px; flex-direction:column;
}
.mobile-menu.open{ display:flex; }
.mobile-menu .close-btn{ align-self:flex-end; background:none; border:none; color:#fff; }
.mobile-menu a{ color:#fff; font-size:22px; font-family:var(--font-display); padding:14px 0; border-bottom:1px solid rgba(255,255,255,0.1); }
.mobile-menu .mm-actions{ margin-top:24px; display:flex; flex-direction:column; gap:12px; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .grid-dash{ grid-template-columns:1fr; }
}
@media (max-width: 960px){
  .nav-links{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .grid-2, .grid-3{ grid-template-columns:1fr; }
  .app-shell{ grid-template-columns:1fr; }
  .app-sidebar{ position:fixed; left:0; top:0; width:264px; z-index:300; transform:translateX(-100%); transition:transform .25s var(--ease); }
  .app-sidebar.open{ transform:translateX(0); box-shadow:var(--shadow-lg); }
  .sidebar-toggle{ display:inline-flex; }
  .app-content{ padding:22px 18px; }
  .app-topbar{ padding:0 18px; }
}
@media (max-width: 640px){
  .footer-grid{ grid-template-columns:1fr; }
  .grid-4{ grid-template-columns:1fr 1fr; }
  .container{ padding:0 18px; }
}