:root{--green: #00E676;--green-dark: #00C853;--green-dim: rgba(0,230,118,.12);--black: #000000;--black-2: #0A0A0A;--black-3: #111111;--black-4: #181818;--gray: #888888;--gray-light: #aaaaaa;--sidebar-w: 260px;--red: #ef4444;--red-dim: rgba(239,68,68,.1)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,sans-serif;background:var(--black);color:#fff;min-height:100vh}.sidebar{width:var(--sidebar-w);background:var(--black-2);border-right:1px solid rgba(255,255,255,.06);display:flex;flex-direction:column;position:fixed;height:100vh;left:0;top:0;z-index:100}.sidebar-header{padding:28px 24px 20px;border-bottom:1px solid rgba(255,255,255,.04)}.sidebar-header .brand{font-size:1.4rem;font-weight:800;text-decoration:none;color:#fff;letter-spacing:-.5px}.sidebar-header .brand span{color:var(--green)}.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;color:var(--gray-light);text-decoration:none;border-radius:8px;font-size:.9rem;font-weight:500;transition:all .2s}.nav-item:hover{background:var(--black-4);color:#fff}.nav-item.active{background:var(--green-dim);color:var(--green);border:1px solid rgba(0,230,118,.18)}.nav-item i{width:18px;text-align:center;font-size:1rem}.sidebar-footer{padding:16px 12px;border-top:1px solid rgba(255,255,255,.06)}.user-card{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;background:var(--black-3);margin-bottom:10px}.user-avatar{width:36px;height:36px;border-radius:50%;background:var(--green-dim);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0;border:1px solid rgba(0,230,118,.25)}.user-meta{overflow:hidden}.user-meta .u-name{font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-meta .u-plan{font-size:.72rem;color:var(--green);text-transform:uppercase;letter-spacing:.5px;font-weight:600}.btn-logout{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:9px;border-radius:8px;background:var(--red-dim);color:#f87171;text-decoration:none;font-size:.85rem;font-weight:600;border:1px solid rgba(239,68,68,.2);transition:all .2s;cursor:pointer}.btn-logout:hover{background:#ef44442e;color:#fca5a5}.main-content{margin-left:var(--sidebar-w);padding:36px 40px;min-height:100vh}.page-title{font-size:1.6rem;font-weight:800;margin-bottom:4px;letter-spacing:-.5px}.page-sub{font-size:.9rem;color:var(--gray);margin-bottom:28px}.card-dark{background:var(--black-2);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:22px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px}.stat-card{display:flex;align-items:center;gap:14px}.stat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}.stat-icon.green{background:var(--green-dim);color:var(--green)}.stat-icon.blue{background:#60a5fa1a;color:#60a5fa}.stat-icon.purple{background:#a78bfa1a;color:#a78bfa}.stat-icon.orange{background:#fb923c1a;color:#fb923c}.stat-num{font-size:1.7rem;font-weight:800;line-height:1}.stat-label{font-size:.78rem;color:var(--gray);margin-top:3px}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-dot.on{background:var(--green);box-shadow:0 0 6px var(--green);animation:pulse 2s infinite}.status-dot.off{background:#f87171}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.form-dark{background:#0000004d;border:1px solid rgba(255,255,255,.1);color:#fff;border-radius:8px;padding:11px 14px;font-family:Inter,sans-serif;font-size:.9rem;width:100%;transition:all .2s}.form-dark:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px #00e6761a}.form-dark::placeholder{color:#fff3}.form-label-dark{font-size:.82rem;font-weight:600;color:var(--gray-light);margin-bottom:6px;display:block}.btn-green{background:var(--green);color:#000;border:none;padding:10px 22px;border-radius:8px;font-weight:700;font-size:.9rem;cursor:pointer;transition:all .2s}.btn-green:hover{background:var(--green-dark);transform:translateY(-1px)}.toast-v{position:fixed;bottom:-80px;right:24px;background:var(--black-3);border:1px solid var(--green);color:#fff;padding:14px 20px;border-radius:10px;display:flex;align-items:center;gap:12px;z-index:9999;transition:bottom .4s cubic-bezier(.68,-.55,.27,1.55);font-size:.88rem;font-weight:600;min-width:260px}.toast-v.show{bottom:24px}.toast-v.error{border-color:#ef4444}.chat-layout{display:flex;height:calc(100vh - 72px);gap:0}.chat-sidebar{width:340px;border-right:1px solid rgba(255,255,255,.06);display:flex;flex-direction:column}.chat-main{flex:1;display:flex;flex-direction:column}.contact-item{display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;transition:background .2s;border-bottom:1px solid rgba(255,255,255,.04)}.contact-item:hover{background:var(--black-4)}.contact-item.active{background:var(--green-dim)}.msg-bubble{max-width:70%;padding:10px 14px;border-radius:12px;font-size:.9rem;line-height:1.5;margin-bottom:8px;word-wrap:break-word}.msg-bubble.user{background:var(--green-dim);border:1px solid rgba(0,230,118,.15);margin-left:auto}.msg-bubble.assistant{background:var(--black-3);border:1px solid rgba(255,255,255,.08)}.msg-time{font-size:.7rem;color:var(--gray);margin-top:4px}.msg-area{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column}.msg-input-bar{display:flex;gap:10px;padding:16px 20px;border-top:1px solid rgba(255,255,255,.06)}@media(max-width:992px){.sidebar{transform:translate(-100%)}.main-content{margin-left:0;padding:20px 16px}}