/*
 * Y4T portal core.
 * Shared tokens, shell, navigation and control primitives only.
 * View-specific layout belongs to its own stylesheet.
 */
:root{
  color-scheme:light;
  --bg:#f5f7fb;
  --panel:#fff;
  --ink:#111827;
  --muted:#64748b;
  --line:#e2e8f0;
  --brand:#172554;
  --accent:#2563eb;
  --danger:#b91c1c;
  --success:#166534;
  --warning:#92400e;
  --radius:16px;
  --ui-touch:44px;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{min-width:0;overflow-x:hidden}
body{margin:0;min-width:0;background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
[hidden]{display:none!important}

:where(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.skip-link{position:fixed;left:12px;top:12px;z-index:3000;transform:translateY(-160%);padding:9px 12px;border-radius:10px;background:#fff;color:#0f172a;box-shadow:0 4px 18px rgba(15,23,42,.18)}
.skip-link:focus{transform:none}
body.portal-navigating::before{content:"";position:fixed;top:0;left:0;z-index:2500;width:35%;height:3px;background:var(--accent);animation:portal-nav-progress .8s ease-in-out infinite alternate}
@keyframes portal-nav-progress{from{transform:translateX(-20%)}to{transform:translateX(220%)}}

.app-shell{min-height:100vh;display:grid;grid-template-columns:230px minmax(0,1fr)}
.main{min-width:0}
.sidebar{background:#0f172a;color:#e2e8f0;padding:24px 16px;display:flex;flex-direction:column;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:inherit;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{display:inline-grid;place-items:center;min-width:44px;height:34px;padding:0 8px;border-radius:10px;background:#fff;color:#0f172a;font-size:14px;letter-spacing:.08em}
.sidebar nav{display:grid;gap:6px}
.nav-section-label{padding:0 12px;color:#94a3b8;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.nav-link{display:block;color:#cbd5e1;padding:10px 12px;border-radius:10px}
.nav-link:hover,.nav-link.active{background:#1e293b;color:#fff;text-decoration:none}
.nav-label-mobile{display:none}
.nav-advanced{border-top:1px solid rgba(148,163,184,.2);padding-top:8px}
.nav-advanced summary{cursor:pointer;color:#94a3b8;font-size:11px;font-weight:800;padding:8px 12px}
.nav-advanced-links{display:grid;gap:4px}
.sidebar-footer{margin-top:auto}
.mobile-bottom-nav{display:none}
.logout-form{margin:0}
.logout-link{width:100%;border:0;background:transparent;text-align:left;font:inherit;cursor:pointer}

.topbar{min-height:92px;background:#fff;border-bottom:1px solid var(--line);padding:18px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.topbar>div{min-width:0}
.topbar h1,.page-heading h2{margin:2px 0 0}
.eyebrow{margin:0;text-transform:uppercase;letter-spacing:.12em;font-size:11px;font-weight:800;color:var(--muted)}
.content-shell{width:100%;max-width:1440px;margin:0 auto;padding:28px 32px 56px}
.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}

.workspace-form,.inline-form,.approval-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap;min-width:0}
.workspace-form-label{font-size:11px;font-weight:800;color:var(--muted)}
.workspace-form select,.approval-form input,select,input,textarea{border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--ink);padding:10px 12px;font:inherit}
.workspace-form select{min-width:210px}
textarea{max-width:100%}
.button{appearance:none;border:0;border-radius:10px;background:var(--accent);color:#fff;min-height:var(--ui-touch);padding:10px 14px;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:7px;line-height:1.2;text-align:center}
.button:hover{filter:brightness(.96);text-decoration:none}
.button.secondary{background:#e2e8f0;color:#172033}
.button.danger{background:#fee2e2;color:var(--danger)}
.button:disabled{cursor:not-allowed;opacity:.6}
.flash{margin:18px 32px 0;background:#dcfce7;color:#166534;border:1px solid #bbf7d0;padding:8px 8px 8px 14px;border-radius:12px;display:flex;align-items:center;gap:10px}
.flash-message{flex:1 1 auto;min-width:0}
.flash-dismiss{flex:0 0 36px;width:36px;height:36px;border:0;border-radius:9px;background:transparent;color:currentColor;font:700 24px/1 system-ui,sans-serif;cursor:pointer;display:grid;place-items:center}
.flash-dismiss:hover,.flash-dismiss:focus-visible{background:rgba(22,101,52,.1)}
.flash.error{background:#fee2e2;color:#991b1b;border-color:#fecaca}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 1px 2px rgba(15,23,42,.04)}
.muted{color:var(--muted)}

.mobile-menu-disclosure{position:relative;flex:0 0 auto}
.mobile-menu-toggle{min-width:44px;min-height:44px;padding:8px 10px;border:1px solid #cbd5e1;border-radius:12px;background:#fff;color:#172033;display:inline-flex;align-items:center;justify-content:center;gap:7px;cursor:pointer;list-style:none;font-weight:800}
.mobile-menu-toggle::-webkit-details-marker{display:none}
.mobile-menu-drawer{position:fixed;top:76px;right:12px;z-index:1002;width:min(360px,calc(100vw - 24px));max-height:calc(100dvh - 96px);overflow:auto;padding:14px;border:1px solid #cbd5e1;border-radius:16px;background:#fff;color:var(--ink);box-shadow:0 24px 70px rgba(7,17,31,.28)}
.mobile-menu-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.mobile-menu-header strong{display:block;margin-top:2px}
.mobile-menu-close{width:44px;height:44px;border:0;border-radius:10px;background:#f1f5f9;color:#172033;font-size:24px;cursor:pointer}
.mobile-menu-nav{display:grid;gap:12px;padding-top:12px}
.mobile-menu-section{display:grid;gap:5px}
.mobile-menu-section-label{padding:0 8px;color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.mobile-menu-link{color:#334155;background:#f8fafc}
.mobile-menu-link:hover,.mobile-menu-link.active{background:#e2e8f0;color:#0f172a}

.pwa-install-banner{position:fixed;right:18px;bottom:18px;z-index:1600;width:min(420px,calc(100vw - 36px));display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px;border:1px solid #cbd5e1;border-radius:16px;background:#fff;color:#0f172a;box-shadow:0 18px 54px rgba(15,23,42,.2)}
.pwa-install-copy{display:grid;gap:3px;min-width:0}
.pwa-install-copy strong{font-size:14px}
.pwa-install-copy span{font-size:12px;line-height:1.4;color:#64748b}
.pwa-install-actions{display:flex;gap:7px;flex:0 0 auto}
.pwa-install-actions .button{min-height:44px;padding:8px 11px;white-space:nowrap}

@media(max-width:760px){
  .topbar{min-height:58px;padding:7px 10px;position:sticky;top:0;z-index:30}
  .content-shell{max-width:100%;padding:18px 12px 28px}
  .flash{max-width:calc(100% - 24px);margin:12px auto 0;overflow-wrap:anywhere}
  .workspace-form select{font-size:16px}
  .mobile-menu-drawer{top:66px;right:10px;width:calc(100vw - 20px);max-height:calc(100dvh - 84px)}
  .pwa-install-banner{left:10px;right:10px;bottom:80px;width:auto;align-items:stretch;flex-direction:column;gap:10px}
  .pwa-install-actions{display:grid;grid-template-columns:1fr 1fr}
  .pwa-install-actions .button{width:100%}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}
@media(display-mode:standalone){.pwa-install-banner{display:none!important}}