:root{--primary:#145DA0;--primary-dark:#0C3B66;--primary-light:#EAF4FB;--accent:#2E8BC0;--bg-page:#F7FAFC;--card-bg:#ffffff;--text-main:#1e293b;--text-muted:#64748b;--border-color:#e2e8f0;--border-focus:#145DA0;--shadow-sm:0 1px 3px rgba(12,59,102,0.06),0 1px 2px rgba(12,59,102,0.04);--shadow-md:0 4px 6px -1px rgba(12,59,102,0.08),0 2px 4px -2px rgba(12,59,102,0.06);--shadow-lg:0 16px 40px rgba(12,59,102,0.12);font-family:"Noto Sans Thai",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--text-main);background:var(--bg-page);font-synthesis:none;}*{box-sizing:border-box;}body{margin:0;min-height:100vh;background-color:var(--bg-page);color:var(--text-main);}.login-card{width:min(420px,calc(100% - 32px));margin:10vh auto;background:var(--card-bg);padding:36px;border-radius:24px;border:1px solid var(--border-color);box-shadow:var(--shadow-lg);}.brand-mark{display:inline-grid;place-items:center;background:var(--primary);color:#ffffff;font-weight:900;letter-spacing:.08em;border-radius:12px;padding:10px 14px;box-shadow:0 4px 12px rgba(20,93,160,0.25);}.brand-mark.compact{padding:6px 10px;border-radius:8px;margin-right:12px;box-shadow:none;}.login-card h1{margin:18px 0 4px;color:var(--primary-dark);font-size:1.6rem;}.login-card p{color:var(--text-muted);margin-top:0;font-size:0.95rem;}label{display:block;font-weight:700;margin:24px 0 8px;color:var(--primary-dark);font-size:0.95rem;}input,select,button{font:inherit;}input,select{width:100%;border:1px solid var(--border-color);border-radius:12px;padding:12px 14px;background:#ffffff;color:var(--text-main);transition:border-color 0.2s,box-shadow 0.2s;}input:focus,select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(46,139,192,0.2);}button{border:0;border-radius:12px;padding:12px 18px;background:var(--primary);color:#ffffff;font-weight:700;cursor:pointer;transition:background-color 0.2s,transform 0.1s,box-shadow 0.2s;}button:hover{background:var(--accent);box-shadow:0 4px 12px rgba(46,139,192,0.25);}button:active{transform:translateY(1px);}button.secondary{background:var(--primary-light);color:var(--primary);border:1px solid rgba(20,93,160,0.2);box-shadow:none;}button.secondary:hover{background:#d6ebf8;color:var(--primary-dark);border-color:var(--primary);}.login-card button{width:100%;margin-top:18px;padding:13px;font-size:1rem;}.login-card small{display:block;color:#e11d48;margin-top:12px;font-weight:600;text-align:center;}main{max-width:1120px;margin:auto;padding:28px 20px;}header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}header div{display:flex;align-items:center;}header h1{font-size:1.4rem;margin:0;color:var(--primary-dark);font-weight:800;}.header-actions{display:flex;gap:.6rem;flex-wrap:wrap;}.summary{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}.summary article{background:var(--card-bg);border-radius:18px;padding:20px;border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:transform 0.2s,box-shadow 0.2s;}.summary article:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}.summary strong{display:block;font-size:2.1rem;color:var(--primary);font-weight:800;line-height:1.1;}.summary span{color:var(--text-muted);font-size:0.92rem;margin-top:4px;display:inline-block;}.toolbar{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px;margin:24px 0;}.conversation-list{display:grid;gap:14px;}.conversation{background:var(--card-bg);border:1px solid var(--border-color);border-radius:18px;padding:20px;display:grid;grid-template-columns:1fr auto;gap:16px;box-shadow:var(--shadow-sm);transition:box-shadow 0.2s,border-color 0.2s;}.conversation:hover{border-color:#cbd5e1;box-shadow:var(--shadow-md);}.conversation.unread{border-left:5px solid var(--accent);background:#fafcff;}.conversation h2{font-size:1.1rem;margin:0 0 8px;color:var(--primary-dark);display:flex;align-items:center;gap:6px;}.conversation h2 span[aria-label="ยังไม่อ่าน"]{color:var(--accent);font-size:0.8rem;}.meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--text-muted);font-size:.88rem;}.channel,.status-pill{border-radius:999px;padding:4px 10px;font-size:0.82rem;font-weight:600;background:var(--primary-light);color:var(--primary-dark);}.channel.line{background:#dcfce7;color:#15803d;}.channel.facebook{background:#dbeafe;color:#1e40af;}.channel.instagram{background:#fce7f3;color:#9d174d;}.channel.tiktok{background:#f1f5f9;color:#0f172a;}.channel.shopee{background:#ffedd5;color:#c2410c;}.channel.lazada{background:#ede9fe;color:#6b21a8;}.status-pill.status-new{background:#e0f2fe;color:#0369a1;}.status-pill.status-working{background:#fef3c7;color:#92400e;}.status-pill.status-closed{background:#dcfce7;color:#166534;}.message{margin:14px 0 0;white-space:pre-wrap;color:#334155;line-height:1.5;}.actions{display:flex;gap:8px;align-items:stretch;flex-wrap:wrap;justify-content:flex-end;}.actions button,.actions a{font-size:.88rem;padding:8px 13px;text-decoration:none;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;}.actions .working{background:#f59e0b;color:#ffffff;}.actions .working:hover{background:#d97706;}.actions .closed{background:#10b981;color:#ffffff;}.actions .closed:hover{background:#059669;}.actions a{background:var(--primary-light);color:var(--primary-dark);font-weight:700;border:1px solid rgba(20,93,160,0.15);}.actions a:hover{background:#d6ebf8;color:var(--primary);}.assignee{margin-top:14px;display:flex;align-items:center;gap:8px;}.assignee input{max-width:220px;padding:8px 12px;font-size:0.88rem;}.empty{text-align:center;padding:60px 20px;color:var(--text-muted);background:var(--card-bg);border-radius:18px;border:1px dashed var(--border-color);}.error-banner{background:#fee2e2;color:#991b1b;padding:14px;border-radius:12px;margin-bottom:16px;font-weight:600;}dialog{width:min(680px,calc(100% - 2rem));max-height:85vh;border:1px solid var(--border-color);border-radius:20px;padding:1.5rem;box-shadow:0 25px 50px -12px rgba(12,59,102,0.25);background:var(--card-bg);}dialog::backdrop{background:rgba(12,59,102,0.4);backdrop-filter:blur(2px);}.dialog-close{float:right;border:0;background:transparent;color:var(--text-muted);font-size:2rem;padding:0 .4rem;line-height:1;cursor:pointer;}.dialog-close:hover{color:var(--primary-dark);background:transparent;box-shadow:none;}.message-history{display:grid;gap:.75rem;margin-top:1.25rem;overflow-y:auto;max-height:60vh;padding-right:4px;}.history-message{background:var(--primary-light);border-radius:14px;padding:.9rem 1.1rem;border:1px solid rgba(20,93,160,0.08);}.history-message p{margin:0 0 .35rem;white-space:pre-wrap;color:var(--text-main);}.history-message time{color:var(--text-muted);font-size:.8rem;}@media(max-width:720px){main{padding:16px;}.summary{grid-template-columns:1fr 1fr;}.toolbar{grid-template-columns:1fr;}.conversation{grid-template-columns:1fr;}.actions{justify-content:flex-start;}.summary strong{font-size:1.6rem;}}