/* Eximious Tech responsive workspace sidebar */
.app-shell { grid-template-columns: 270px minmax(310px, 360px) minmax(440px, 1fr) minmax(250px, 310px); gap: 18px; }
.rail { width: 270px; min-width: 0; align-items: stretch; gap: 0; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); color: var(--ink); transition: width .28s ease, background-color .28s ease, color .28s ease; }
.rail.collapsed { width: 76px; }
.rail-header { display:flex; align-items:center; justify-content:space-between; min-height:76px; padding:12px 14px; border-bottom:1px solid var(--line); }
.rail-brand { display:flex; min-width:0; align-items:center; gap:11px; color:inherit; text-decoration:none; }
.rail-brand .brand-mark { width:42px; height:42px; flex:0 0 42px; border-radius:13px; }
.rail-brand-copy { min-width:0; overflow:hidden; white-space:nowrap; transition:opacity .2s ease, width .28s ease; }
.rail-brand-copy strong { display:block; color:var(--navy); font-size:12px; font-weight:900; letter-spacing:.08em; }
.rail-brand-copy span { display:block; margin-top:2px; color:var(--muted); font-size:9px; font-weight:800; letter-spacing:.2em; }
.rail.collapsed .rail-brand-copy,.rail.collapsed .rail-section-title,.rail.collapsed .rail-label,.rail.collapsed .rail-badge,.rail.collapsed .rail-chevron,.rail.collapsed .rail-status-copy,.rail.collapsed .rail-theme-label { display:none; }
.rail-toggle,.rail-mobile-close { display:grid; width:32px; height:32px; flex:0 0 auto; place-items:center; border:0; border-radius:9px; color:var(--muted); background:transparent; font-size:16px; transition:all .18s ease; }
.rail-toggle:hover,.rail-mobile-close:hover { color:var(--blue); background:var(--blue-soft); }
.rail-mobile-close { display:none; }
.rail-content { min-height:0; flex:1; overflow-y:auto; padding:18px 12px; }
.rail-section { margin-bottom:24px; }
.rail-section-title { display:block; margin:0 9px 8px; color:#98a4b8; font-size:9px; font-weight:900; letter-spacing:.18em; text-transform:uppercase; white-space:nowrap; }
.rail-chat-select { position:relative; width:100%; margin-bottom:22px; }
.rail-chat-button { display:flex; width:100%; min-height:43px; align-items:center; justify-content:space-between; gap:10px; padding:9px 11px; border:1px solid var(--line); border-radius:12px; color:var(--ink); background:var(--surface); font-size:11px; font-weight:850; transition:all .18s ease; }
.rail-chat-button:hover,.rail-chat-button[aria-expanded="true"] { border-color:rgba(10,115,255,.24); background:var(--blue-soft); }
.rail-chat-main { display:flex; min-width:0; align-items:center; gap:9px; }
.rail-chat-main svg { width:17px; height:17px; flex:0 0 auto; color:var(--blue); }
.rail-chevron { width:14px; height:14px; color:var(--muted); transition:transform .2s ease; }
.rail-chat-button[aria-expanded="true"] .rail-chevron { transform:rotate(180deg); }
.rail-chat-menu { display:grid; gap:4px; margin-top:5px; padding:5px; border:1px solid var(--line); border-radius:11px; background:var(--surface); box-shadow:var(--soft-shadow); }
.rail-chat-menu button { display:flex; align-items:center; gap:8px; padding:8px 9px; border:0; border-radius:8px; color:var(--muted); background:transparent; text-align:left; font-size:10px; font-weight:700; }
.rail-chat-menu button:hover { color:var(--blue); background:var(--blue-soft); }
.rail-chat-menu .online-dot { width:7px; height:7px; border-radius:50%; background:var(--green); }
.rail-nav { display:grid; gap:4px; }
.rail-nav-item { position:relative; display:flex; width:100%; min-height:42px; align-items:center; justify-content:space-between; gap:10px; padding:9px 10px; border:0; border-radius:11px; color:var(--muted); background:transparent; text-align:left; font-size:12px; font-weight:700; transition:all .18s ease; }
.rail-nav-item:hover { color:var(--ink); background:rgba(10,115,255,.06); }
.rail-nav-item.active { color:#fff; background:linear-gradient(135deg,var(--blue),var(--blue-strong)); box-shadow:0 9px 22px rgba(10,115,255,.16); }
.rail-nav-item .rail-icon-wrap { display:flex; min-width:0; align-items:center; gap:10px; }
.rail-nav-item svg { width:18px; height:18px; flex:0 0 auto; }
.rail-nav-item:not(.active) svg { color:#71809a; }
.rail-nav-item.active svg { color:#fff; }
.rail-label { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.rail-badge { min-width:22px; padding:3px 6px; border-radius:999px; color:var(--blue); background:var(--blue-soft); text-align:center; font-size:9px; font-weight:900; }
.rail-nav-item.active .rail-badge { color:#fff; background:rgba(255,255,255,.18); }
.rail-alert-dot { width:8px; height:8px; border-radius:50%; background:#ef4444; box-shadow:0 0 0 3px rgba(239,68,68,.10); }
.rail-footer { display:grid; gap:8px; padding:12px; border-top:1px solid var(--line); }
.rail-theme-button { display:flex; min-height:42px; align-items:center; gap:10px; width:100%; padding:9px 10px; border:0; border-radius:11px; color:var(--muted); background:transparent; font-size:11px; font-weight:750; }
.rail-theme-button:hover { color:var(--ink); background:rgba(10,115,255,.06); }
.rail-theme-button svg { width:18px; height:18px; flex:0 0 auto; }
.rail-theme-label { flex:1; text-align:left; }
.rail-theme-state { color:var(--blue); font-size:9px; font-weight:900; }
.rail-status { display:flex; align-items:center; gap:9px; min-height:38px; padding:8px 10px; border-radius:10px; background:rgba(23,166,115,.08); }
.rail-status-dot { width:8px; height:8px; flex:0 0 auto; border-radius:50%; background:var(--green); box-shadow:0 0 0 4px rgba(23,166,115,.08); }
.rail-status-copy strong { display:block; color:var(--green); font-size:10px; }
.rail-status-copy span { display:block; margin-top:2px; color:var(--muted); font-size:8px; }
body.dark { --navy:#fff; --navy-2:#e7eefc; --blue-soft:rgba(37,99,235,.14); --ink:#e7eefc; --muted:#8f9db8; --line:#1d2943; --surface:#0f1932; --canvas:#071021; --shadow:0 18px 50px rgba(0,0,0,.28); --soft-shadow:0 8px 24px rgba(0,0,0,.22); color-scheme:dark; }
body.dark .rail { background:#0A1128; border-color:#1b2742; }
body.dark .rail-brand-copy strong,body.dark .rail-nav-item:hover,body.dark .rail-theme-button:hover { color:#fff; }
body.dark .rail-chat-button,body.dark .rail-chat-menu { background:#0f1932; }
body.dark .rail-nav-item:hover,body.dark .rail-theme-button:hover { background:rgba(37,99,235,.11); }
body.dark .search-box,body.dark .composer textarea { background:#0d1730; color:#e7eefc; }
body.dark .search-row select,body.dark .assignment-button { color:#e7eefc; background:#0d1730; }
body.dark .conversation-item,body.dark .chat-panel,body.dark .stats,body.dark .details-panel .profile-card,body.dark .order-card { background:#0f1932; border-color:#1d2943; }
body.dark .conversation-copy strong,body.dark h1,body.dark h2,body.dark .detail-row p { color:#f8fbff; }
body.dark .messages { background:linear-gradient(180deg,transparent 0%,rgba(0,0,0,.14) 100%); }
body.dark .blank-chat { background:#0f1932; }
body.dark .blank-chat p { color:#8f9db8; }
@media (max-width:1120px) { .app-shell { grid-template-columns:270px 320px 1fr; } .details-panel { display:none; } }
@media (max-width:760px) {
  .app-shell { grid-template-columns:1fr; padding:0; gap:0; }
  .rail { position:fixed; z-index:50; inset:0 auto 0 0; width:min(286px,88vw); height:100vh; border-radius:0 18px 18px 0; transform:translateX(-105%); transition:transform .28s ease; }
  body.sidebar-mobile-open .rail { transform:translateX(0); }
  .rail.collapsed { width:min(286px,88vw); }
  .rail-toggle { display:none; }
  .rail-mobile-close { display:grid; }
  .inbox-panel { grid-column:1; }
  .rail-backdrop { position:fixed; z-index:45; inset:0; background:rgba(2,8,23,.52); backdrop-filter:blur(2px); }
  .sidebar-mobile-trigger { position:fixed; z-index:35; top:12px; left:12px; display:grid; width:40px; height:40px; place-items:center; border:1px solid var(--line); border-radius:11px; color:var(--ink); background:var(--surface); box-shadow:var(--soft-shadow); }
  .panel-heading { padding-left:64px; }
}
@media (min-width:761px) { .sidebar-mobile-trigger,.rail-backdrop { display:none; } }
.rail.collapsed .rail-header { justify-content:center; padding-inline:10px; }
.rail.collapsed .rail-brand { justify-content:center; }
.rail.collapsed .rail-brand .brand-mark { width:42px; height:42px; }
.rail.collapsed .rail-toggle { display:grid; }
.rail.collapsed .rail-content { padding-inline:10px; }
.rail.collapsed .rail-chat-button { justify-content:center; padding-inline:8px; }
.rail.collapsed .rail-chat-main { justify-content:center; }
.rail.collapsed .rail-nav-item { justify-content:center; padding-inline:8px; }
.rail.collapsed .rail-nav-item .rail-icon-wrap { justify-content:center; }
.rail.collapsed .rail-nav-item::after { content:attr(data-tooltip); position:absolute; left:calc(100% + 10px); top:50%; z-index:80; padding:6px 8px; border-radius:7px; opacity:0; pointer-events:none; transform:translateY(-50%) translateX(-3px); color:#fff; background:#0f1932; font-size:10px; font-weight:750; white-space:nowrap; box-shadow:0 8px 20px rgba(0,0,0,.16); transition:opacity .15s ease,transform .15s ease; }
.rail.collapsed .rail-nav-item:hover::after { opacity:1; transform:translateY(-50%) translateX(0); }