:root{--primary: #7c5cfc;--primary-dark: #6847f5;--primary-deep: #5b35e8;--primary-soft: #eee9ff;--lavender: #f7f4ff;--bg: #fafafc;--bg-soft: #f4f3f8;--surface: #ffffff;--text: #1c1b2f;--muted: #6f6b7c;--faint: #a1a1aa;--border: #eceaf2;--border-strong: #e2dff0;--danger: #dc2626;--success: #16a34a;--warn: #d97706;--radius: 10px;--radius-lg: 14px;--shadow-soft: 0 1px 2px rgba(28, 27, 47, .04), 0 10px 28px -20px rgba(28, 27, 47, .18)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--primary-deep);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:22px;margin:0 0 16px;letter-spacing:-.01em}h2{font-size:17px;margin:24px 0 10px;letter-spacing:-.01em}h3{font-size:15px;margin:0 0 8px}:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}.layout{display:flex;min-height:100vh}.sidebar{width:232px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);padding:18px 12px}.sidebar-brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;letter-spacing:-.02em;padding:0 8px 18px}.brand-mark{width:28px;height:28px;flex-shrink:0}.nav-link{display:block;padding:9px 10px;margin-bottom:2px;border-radius:var(--radius);color:var(--muted);font-weight:550;transition:background-color .15s ease,color .15s ease}.nav-link:hover{background:var(--lavender);color:var(--text);text-decoration:none}.nav-link-active,.nav-link-active:hover{background:var(--primary-soft);color:var(--primary-deep);font-weight:650}.content{flex:1;padding:26px;min-width:0}.card{background:var(--surface);border:1px solid 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td{border-bottom:none}tbody tr:hover{background:var(--lavender)}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 15px;border:1px solid transparent;border-radius:var(--radius);background:var(--primary);color:#fff;font-size:13px;font-weight:600;font-family:inherit;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,box-shadow .15s ease;box-shadow:0 6px 16px -10px #7c5cfce6}.btn:hover:not(:disabled){background:var(--primary-dark)}.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.btn-secondary{background:var(--surface);color:var(--primary-deep);border-color:var(--border-strong);box-shadow:none}.btn-secondary:hover:not(:disabled){background:var(--lavender);border-color:var(--primary)}.btn-danger{background:var(--danger);box-shadow:none}.btn-danger:hover:not(:disabled){background:#b91c1c}.btn-sm{padding:5px 11px;font-size:12px}input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--border-strong);border-radius:var(--radius);font-size:14px;font-family:inherit;background:var(--surface);color:var(--text);transition:border-color .15s ease,box-shadow .15s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #7c5cfc29}input::placeholder,textarea::placeholder{color:var(--faint)}textarea{min-height:90px;resize:vertical}label{display:block;font-size:12.5px;font-weight:600;margin-bottom:5px;color:var(--muted)}.field{margin-bottom:12px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row-between{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}.grow{flex:1;min-width:0}.muted{color:var(--muted)}.small{font-size:12px}.error{color:var(--danger);font-size:13px;margin:8px 0}.center{text-align:center}::selection{background:var(--primary-soft);color:var(--primary-deep)}.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:650;background:var(--bg-soft);color:var(--muted)}.badge-success{background:#e7f8ee;color:#15803d}.badge-danger{background:#fdeaea;color:#b91c1c}.badge-warn{background:#fef3c7;color:#a16207}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px;background:radial-gradient(60% 50% at 50% 0%,rgba(124,92,252,.1),transparent 70%),var(--bg)}.login-card{width:100%;max-width:380px}.login-brand{display:flex;flex-direction:column;align-items:center;gap:10px;margin-bottom:18px}.login-brand .brand-mark{width:52px;height:52px}.login-brand h1{margin:0;font-size:20px}.thread{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.msg{padding:10px 12px;border-radius:var(--radius);max-width:78%;white-space:pre-wrap}.msg-user{background:var(--bg-soft);align-self:flex-start}.msg-admin{background:var(--primary-soft);color:var(--primary-deep);align-self:flex-end}.spinner{width:20px;height:20px;border:2.5px solid var(--border-strong);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin:20px auto}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}@media(max-width:780px){.layout{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border)}.sidebar nav{display:flex;gap:6px;overflow-x:auto}.nav-link{white-space:nowrap}.content{padding:16px}}.tabs{display:flex;gap:4px;margin-bottom:18px;border-bottom:1px solid var(--border)}.tab{padding:9px 14px;border:0;border-bottom:2px solid 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