:root{
  --bg:#f3f7fa;--panel:#fff;--ink:#14212a;--muted:#667783;--line:#d8e4eb;
  --nav:#0f3150;--nav2:#174f78;--accent:#27b6d6;--accent2:#0c8fb2;--soft:#eaf7fb;
  --danger:#b4233b;--warn:#9a6700;--success:#157f4b;--radius:16px;--shadow:0 14px 40px rgba(15,49,80,.12)
}
/* Keep logged-out, account-creation, recovery, and signed-in views mutually exclusive. */
[hidden]{display:none!important}
*{box-sizing:border-box} html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
button,input,select,textarea{font:inherit} button{cursor:pointer}.eyebrow{font-size:.76rem;letter-spacing:.14em;font-weight:800;color:var(--accent2)}
.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(300px,1.1fr) minmax(360px,.9fr);background:linear-gradient(135deg,#081b29 0%,#0f3150 52%,#e9f4f8 52%,#f7fbfd 100%)}
.brand-panel{padding:clamp(38px,7vw,110px);display:flex;align-items:center;color:#fff}.brand-content{width:min(620px,100%)}.brand-logo-main{display:block;width:min(520px,100%);height:auto;border-radius:18px;box-shadow:0 18px 44px rgba(0,0,0,.24)}.portal-kicker{margin-top:24px;font-size:.86rem;letter-spacing:.22em;font-weight:900;color:#68d9ef}.brand-panel p{max-width:560px;margin:.65rem 0 0;font-size:1.1rem;color:#d9ebf2;line-height:1.5}
.brand-icon-small{width:44px;height:44px;object-fit:cover;border-radius:12px;border:1px solid rgba(105,217,239,.55);box-shadow:0 4px 14px rgba(15,49,80,.18)}
.auth-card{align-self:center;justify-self:center;width:min(520px,90%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.tabs{display:flex;gap:8px;margin-bottom:22px}.tab{border:0;background:#edf3f6;padding:11px 14px;border-radius:10px;font-weight:700}.tab.active{background:var(--nav);color:#fff}
.stack{display:grid;gap:16px}.stack label,.form-grid label,.admin-tools label{display:grid;gap:7px;font-weight:700}.stack input,.form-grid input,.form-grid select,.form-grid textarea,.admin-tools input,.admin-tools select,.reply-form textarea,.staff-controls select{width:100%;border:1px solid #bfd0da;border-radius:10px;padding:12px;background:#fff;color:var(--ink)}
.primary,.secondary,.link-btn,.icon-btn{border:0;border-radius:10px;padding:11px 16px;font-weight:800}.primary{background:linear-gradient(135deg,var(--nav2),var(--accent2));color:#fff}.secondary{background:#e7eef3;color:#17324a}.link-btn{background:transparent;color:var(--nav2);padding-left:0}.hint{font-size:.9rem;color:var(--muted);margin:0}
.app-shell{min-height:100vh;display:grid;grid-template-columns:280px 1fr;grid-template-rows:72px 1fr;grid-template-areas:"top top" "side content"}.topbar{grid-area:top;display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.topbar-brand{display:flex;align-items:center;gap:12px}.topbar-brand div:last-child{display:grid}.topbar-brand span{font-size:.8rem;color:var(--muted)}.topbar-actions{display:flex;align-items:center;gap:12px}.signed-in{font-size:.9rem;color:var(--muted)}
.sidebar{grid-area:side;background:linear-gradient(180deg,var(--nav),#0a263d);padding:20px 14px;display:flex;flex-direction:column;gap:8px;min-height:calc(100vh - 72px);position:sticky;top:72px}.nav-btn{border:1px solid rgba(255,255,255,.08);background:transparent;color:#e7f3f8;text-align:left;padding:13px 14px;border-radius:11px;font-weight:750}.nav-btn:hover,.nav-btn.active{background:#1d5b86}.sidebar-footer{margin-top:auto;color:#86a9bc;font-size:.8rem;padding:12px}
.content{grid-area:content;padding:28px;min-width:0}.panel-view{max-width:1220px;margin:0 auto}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.page-head h2{font-size:2rem;margin:.2rem 0}.page-head p{margin:.35rem 0;color:var(--muted)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}.stat-card,.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 6px 20px rgba(15,49,80,.05)}.stat-card{padding:22px}.stat-card span{display:block;color:var(--muted);font-weight:700}.stat-card strong{font-size:2.4rem}.card{padding:22px;margin-bottom:18px}.card h3{margin-top:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.full{grid-column:1/-1}.form-actions{display:flex;justify-content:flex-end}
.ticket-list{display:grid;gap:12px}.ticket-row{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center}.ticket-row:hover{border-color:#8fc9dc}.ticket-title{font-weight:850}.ticket-meta{display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:6px;font-size:.86rem;color:var(--muted)}.status{display:inline-flex;border-radius:999px;padding:5px 9px;font-weight:800;font-size:.76rem;background:#edf3f6}.status.open,.status.waiting_on_support{background:#fff1c8;color:#725000}.status.waiting_on_customer{background:#dff4ff;color:#085b78}.status.resolved,.status.closed{background:#e2f6ea;color:#17643e}.priority.urgent,.priority.high{color:var(--danger)}
.empty-state{color:var(--muted)}
.owned-products{display:grid;gap:10px}.owned-product-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 13px;border:1px solid var(--line);border-radius:11px;background:#f8fbfc}.owned-product-row span{color:var(--muted);font-weight:700;font-size:.9rem}.primary:disabled,.secondary:disabled,.nav-btn:disabled{opacity:.5;cursor:not-allowed}
.ticket-header{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.ticket-header h2{margin:.25rem 0}.message-thread{display:grid;gap:12px;margin:18px 0}.message{border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px 16px}.message.staff{border-left:4px solid var(--accent2)}.message.customer{border-left:4px solid #9aa9b2}.message-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:.83rem;color:var(--muted)}.message-body{white-space:pre-wrap;line-height:1.5}.description-box{white-space:pre-wrap;line-height:1.5;background:#f8fbfc;border:1px solid var(--line);padding:16px;border-radius:12px}.reply-form{display:grid;gap:12px}.attachment-list{display:grid;gap:8px;margin-top:10px}.attachment-link{display:inline-flex;gap:7px;align-items:center;color:var(--nav2);font-weight:700}.staff-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}.admin-tools{display:grid;grid-template-columns:240px 1fr;gap:14px}.toast{position:fixed;right:18px;top:86px;z-index:100;background:#122b3d;color:#fff;padding:13px 16px;border-radius:10px;box-shadow:var(--shadow);max-width:420px}.toast.error{background:#8f2033}.toast.success{background:#166b43}.mobile-only{display:none}.sidebar-backdrop{display:none}
@media (max-width:900px){.auth-shell{grid-template-columns:1fr;background:linear-gradient(180deg,#0b273c 0 36%,#f4f9fb 36%)}.brand-panel{padding:44px 24px 74px}.auth-card{margin-top:-34px;margin-bottom:34px}.app-shell{grid-template-columns:1fr;grid-template-areas:"top" "content"}.mobile-only{display:inline-flex}.sidebar{position:fixed;z-index:40;left:0;top:72px;width:min(320px,86vw);height:calc(100vh - 72px);transform:translateX(-105%);transition:.2s ease;min-height:0}.sidebar.open{transform:translateX(0)}.sidebar-backdrop{position:fixed;inset:72px 0 0 0;background:rgba(4,19,29,.45);z-index:30}.sidebar-backdrop.show{display:block}.content{padding:20px}.stats-grid{grid-template-columns:1fr 1fr}.topbar-actions .signed-in{display:none}}
@media (max-width:620px){.brand-panel{align-items:flex-start;padding:32px 20px 68px}.brand-logo-main{width:min(430px,100%);border-radius:14px}.portal-kicker{margin-top:18px}.brand-panel p{font-size:1rem}.auth-card{width:calc(100% - 24px);padding:20px}.tabs{flex-direction:column}.topbar{padding:0 12px}.topbar-brand strong{font-size:.92rem}.topbar-actions .secondary{padding:9px 11px}.page-head{display:grid}.page-head h2{font-size:1.65rem}.stats-grid{grid-template-columns:1fr}.form-grid,.admin-tools,.staff-controls{grid-template-columns:1fr}.ticket-row{grid-template-columns:1fr}.content{padding:14px}.card{padding:16px}.form-actions .primary{width:100%}.ticket-header{display:grid}.topbar-brand span{display:none}}

/* V1.0.5 ticket draft status */
.draft-row{margin-top:-4px;}
.draft-row .hint{margin:0;}


/* V1.0.8 customer unread-message indicators */
.nav-btn{display:flex;align-items:center;justify-content:space-between;gap:10px}
.nav-unread{display:inline-flex;min-width:24px;height:24px;align-items:center;justify-content:center;padding:0 7px;border-radius:999px;background:#d92d20;color:#fff;font-size:.75rem;font-weight:900}
.unread-message-notice{width:100%;border:1px solid #f4b3ad;background:#fff1f0;color:#8a1c14;border-radius:14px;padding:14px 16px;margin:-2px 0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;text-align:left;font-weight:800}
.unread-message-notice:hover{border-color:#e47b72;background:#ffe8e5}
.ticket-row-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.unread-badge{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;background:#d92d20;color:#fff;font-size:.76rem;font-weight:900;white-space:nowrap}
.ticket-row.unread{border-color:#e7a39d;background:#fffafa}
@media (max-width:620px){.unread-message-notice{align-items:flex-start;flex-direction:column}.ticket-row-actions{justify-content:flex-start}}