:root{--color-primary: #0f766e;--color-primary-dark: #115e59;--color-action: #16a34a;--color-action-dark: #15803d;--color-danger: #dc2626;--color-bg: #f8fafc;--color-card-bg: #ffffff;--color-text: #0f172a;--color-text-muted: #64748b;--color-border: #e2e8f0;--radius: 8px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .06);--shadow-hover: 0 4px 10px rgba(15, 23, 42, .12)}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;font-size:16px;background:var(--color-bg);color:var(--color-text)}.app-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;background:var(--color-primary);color:#fff}.app-header h1{margin:0;font-size:1.25rem}.app-shell{display:flex;gap:1.5rem;padding:1.5rem;align-items:flex-start}.app-column{flex:1;min-width:0}.card{background:var(--color-card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}.btn{display:inline-block;border:none;border-radius:var(--radius);padding:.7rem 1.4rem;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background-color .12s ease}.btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-action{background:var(--color-action);color:#fff}.btn-action:hover:not(:disabled){background:var(--color-action-dark)}.btn-secondary{background:#fff;color:var(--color-primary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:#f1f5f9}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:100%;max-width:360px}.login-card h1{color:var(--color-primary);font-size:1.4rem;margin-top:0}.field{margin-bottom:1rem;display:flex;flex-direction:column;gap:.35rem}.field label{font-size:.875rem;color:var(--color-text-muted);font-weight:500}.field input{padding:.65rem .85rem;border:1px solid var(--color-border);border-radius:var(--radius);font-size:1rem;transition:border-color .12s ease,box-shadow .12s ease}.field input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #0f766e26}.alert-error{background:#fef2f2;color:#b91c1c;border-radius:var(--radius);padding:.65rem .9rem;font-size:.9rem;margin-bottom:1rem}.handoff-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.75rem}.handoff-item{background:var(--color-card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem 1.15rem;display:flex;align-items:center;gap:.75rem;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease;border:2px solid transparent}.handoff-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.handoff-item[aria-current=true]{border-color:var(--color-primary)}.badge{border-radius:999px;padding:.2rem .7rem;font-size:.75rem;font-weight:700;color:#fff;white-space:nowrap}.priority-1{background:var(--color-danger)}.priority-2{background:#d97706}.priority-3{background:var(--color-action)}.sla-warning{color:var(--color-danger)}.history-list{list-style:none;margin:0 0 1rem;padding:0}.history-list li{padding:.5rem 0;border-bottom:1px solid var(--color-border);font-size:.9rem}.actions-row{display:flex;gap:.75rem;margin-top:1.25rem;flex-wrap:wrap}.message-box{display:flex;gap:.6rem;margin-top:1rem}.message-box textarea{flex:1;min-height:3rem;padding:.65rem .85rem;border:1px solid var(--color-border);border-radius:var(--radius);font-family:inherit;font-size:1rem;resize:vertical}