:root{
  --primary:#0f3d63;--primary2:#16619a;--accent:#f1b434;--success:#17a673;--danger:#e53935;--warning:#f59e0b;
  --text:#182235;--muted:#667085;--bg:#f4f7fb;--card:#fff;--line:#e5eaf2;--dark:#071927;--shadow:0 20px 60px rgba(15,61,99,.13);--radius:20px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55} a{text-decoration:none;color:inherit} img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 38px));margin:auto}.pill{display:inline-flex;gap:8px;align-items:center;background:#eaf5ff;border:1px solid #cfe8ff;color:#0f5591;padding:8px 12px;border-radius:999px;font-weight:800;font-size:13px}.btn{border:0;border-radius:14px;padding:12px 18px;font-weight:900;cursor:pointer;display:inline-flex;align-items:center;gap:9px;justify-content:center;transition:.2s;background:var(--primary);color:#fff;box-shadow:0 12px 28px rgba(15,61,99,.2)}.btn:hover{transform:translateY(-1px)}.btn.alt{background:#fff;color:var(--primary);border:1px solid var(--line);box-shadow:none}.btn.warn{background:var(--warning)}.btn.danger{background:var(--danger)}.btn.small{padding:8px 12px;border-radius:10px;font-size:13px}.grid{display:grid;gap:22px}.two{grid-template-columns:repeat(2,1fr)}.three{grid-template-columns:repeat(3,1fr)}.four{grid-template-columns:repeat(4,1fr)}.muted{color:var(--muted)}.section{padding:82px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:950}.brand-mark{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;color:white;box-shadow:0 16px 40px rgba(15,61,99,.25);font-weight:950}.brand small{display:block;color:var(--muted);font-weight:700;font-size:12px}.nav-links{display:flex;align-items:center;gap:22px;font-weight:800;color:#24364f}.nav-links a:hover{color:var(--primary2)}.mobile-menu{display:none;background:transparent;border:0;width:44px;height:44px;position:relative}.mobile-menu span{display:block;width:25px;height:3px;background:var(--text);margin:5px auto;border-radius:99px}.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 8% 10%,rgba(241,180,52,.22),transparent 28%),linear-gradient(135deg,#071927,#0e416a 58%,#1f78b5);color:#fff;padding:92px 0 78px}.hero:after{content:"";position:absolute;right:-120px;top:40px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.08)}.hero .container{position:relative;z-index:1}.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.02;margin:18px 0;letter-spacing:-2px}.hero p{font-size:19px;max-width:680px;color:#d6e6f6}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(14px);border-radius:26px;padding:24px}.stat{background:white;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:0 10px 34px rgba(17,24,39,.06)}.stat b{font-size:34px;color:var(--primary);display:block}.feature-icon{width:54px;height:54px;border-radius:18px;background:#eef7ff;color:var(--primary);display:grid;place-items:center;font-size:26px}.footer{background:#071927;color:#c9d7e5;padding:58px 0 28px}.footer h3,.footer h4{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.form-control{width:100%;border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:#fff;outline:none;font:inherit}.form-control:focus{border-color:#9ec9ed;box-shadow:0 0 0 4px rgba(22,97,154,.12)}label{font-weight:800;font-size:13px;display:block;margin-bottom:8px}.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.flash{padding:13px 15px;border-radius:14px;margin:12px 0;font-weight:800}.flash.success{background:#e9fff6;color:#087047;border:1px solid #beefd9}.flash.error{background:#fff2f2;color:#b42318;border:1px solid #ffd0d0}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:32px;background:radial-gradient(circle at 15% 20%,rgba(241,180,52,.18),transparent 28%),linear-gradient(135deg,#071927,#0f3d63)}.login-card{width:min(440px,100%);background:white;border-radius:28px;padding:32px;box-shadow:0 30px 100px rgba(0,0,0,.3)}.dashboard{display:grid;grid-template-columns:280px 1fr;min-height:100vh}.sidebar{background:#071927;color:#c7d5e2;padding:22px;position:sticky;top:0;height:100vh;overflow:auto}.sidebar .brand{color:white;margin-bottom:22px}.side-nav{display:grid;gap:7px}.side-nav a{padding:11px 12px;border-radius:12px;font-weight:800;color:#c7d5e2;display:flex;justify-content:space-between;align-items:center}.side-nav a:hover,.side-nav a.active{background:rgba(255,255,255,.1);color:#fff}.main{min-width:0}.topbar{height:74px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20}.content{padding:28px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}.dash-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 8px 30px rgba(17,24,39,.05)}.dash-card span{color:var(--muted);font-weight:800;font-size:13px}.dash-card b{display:block;font-size:30px;color:var(--primary);margin-top:8px}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:18px}.table{width:100%;border-collapse:collapse;min-width:780px}.table th,.table td{padding:13px 15px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}.table th{background:#f8fbff;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:#4b5d73}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#eef7ff;color:var(--primary);font-size:12px;font-weight:900}.badge.green{background:#e9fff6;color:#087047}.badge.red{background:#fff1f1;color:#c01616}.badge.yellow{background:#fff8e6;color:#956000}.toolbar{display:flex;justify-content:space-between;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:18px}.modal{display:none;position:fixed;inset:0;background:rgba(7,25,39,.68);z-index:100;place-items:center;padding:20px}.modal.open{display:grid}.modal-card{background:#fff;border-radius:24px;width:min(760px,100%);max-height:90vh;overflow:auto;padding:26px;box-shadow:0 30px 120px rgba(0,0,0,.35)}.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.module-tile{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 8px 30px rgba(17,24,39,.05)}.kpi-chart{height:180px;border-radius:20px;background:linear-gradient(180deg,#eef7ff,#fff);display:flex;align-items:end;gap:12px;padding:18px}.kpi-chart i{flex:1;background:linear-gradient(180deg,var(--primary2),var(--primary));border-radius:12px 12px 0 0;min-height:25px}.print-invoice{background:#fff;padding:30px;border-radius:20px;border:1px solid var(--line)}
@media(max-width:980px){.two,.three,.four,.cards,.module-grid{grid-template-columns:1fr 1fr}.dashboard{grid-template-columns:1fr}.sidebar{display:none}.topbar{position:static}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;background:white;padding:18px;box-shadow:0 20px 60px rgba(0,0,0,.14);flex-direction:column;align-items:flex-start}.nav-links.open{display:flex}.mobile-menu{display:block}.form-row{grid-template-columns:1fr}.content{padding:18px}}
@media(max-width:640px){.two,.three,.four,.cards,.module-grid{grid-template-columns:1fr}.hero{padding:60px 0}.section{padding:54px 0}.topbar{padding:0 16px}.login-card{padding:24px}.footer-bottom{display:block}.nav{height:68px}.nav-links{top:68px}}

/* In-App Chat System */
.chat-content{padding:20px}.chat-shell{display:grid;grid-template-columns:320px minmax(0,1fr) 300px;gap:18px;align-items:stretch}.chat-left,.chat-main,.chat-right{padding:18px;box-shadow:0 8px 30px rgba(17,24,39,.06)}.chat-left,.chat-right{height:calc(100vh - 114px);overflow:auto}.chat-main{height:calc(100vh - 114px);display:grid;grid-template-rows:auto 1fr auto auto;min-width:0}.chat-section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}.chat-section-head h2,.chat-head h2{margin:0}.chat-search-row{margin-bottom:12px}.chat-tabs{display:flex;gap:8px;margin-bottom:12px}.chat-tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;font-weight:900;cursor:pointer;color:var(--muted)}.chat-tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.thread-list,.contact-list{display:grid;gap:8px}.thread-item,.contact-item{width:100%;border:1px solid var(--line);background:#fff;border-radius:16px;padding:12px;display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;text-align:left;cursor:pointer;color:var(--text);transition:.18s}.contact-item{grid-template-columns:auto 1fr}.thread-item:hover,.thread-item.active,.contact-item:hover{background:#f3f9ff;border-color:#bcdcf7}.avatar{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;color:#fff;font-weight:950;flex:none}.avatar.small{width:38px;height:38px;border-radius:13px;font-size:13px}.thread-info{min-width:0}.thread-info b,.contact-item b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-info small,.contact-item small{display:block;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-meta{text-align:right;display:grid;justify-items:end;gap:6px}.thread-meta small{font-size:11px;color:var(--muted)}.thread-meta em{font-style:normal;background:var(--danger);color:#fff;border-radius:999px;min-width:22px;height:22px;display:grid;place-items:center;font-size:12px;font-weight:950}.chat-head{border-bottom:1px solid var(--line);padding-bottom:14px;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center}.chat-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.message-list{overflow:auto;padding:18px 6px;display:flex;flex-direction:column;gap:12px;background:linear-gradient(180deg,#f8fbff,#fff);border-radius:18px;margin:14px 0}.chat-welcome,.chat-empty{text-align:center;margin:auto;color:var(--muted);padding:26px}.chat-empty.error{color:var(--danger);font-weight:800}.message-row{display:flex;justify-content:flex-start}.message-row.own{justify-content:flex-end}.message-bubble{max-width:min(680px,82%);background:#fff;border:1px solid var(--line);border-radius:18px 18px 18px 6px;padding:10px 12px;box-shadow:0 8px 24px rgba(17,24,39,.05)}.message-row.own .message-bubble{background:#eaf5ff;border-color:#c8e5ff;border-radius:18px 18px 6px 18px}.message-author{font-weight:950;font-size:12px;color:var(--primary);margin-bottom:6px}.message-author small{font-weight:700;color:var(--muted);margin-left:8px}.message-text{white-space:normal;word-break:break-word}.message-tools{text-align:right;margin-top:6px}.message-mini{border:0;background:transparent;color:var(--muted);font-size:11px;font-weight:800;cursor:pointer}.message-mini:hover{color:var(--primary)}.message-form{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center}.attach-btn{margin:0;border:1px solid var(--line);background:#fff;border-radius:14px;min-width:46px;height:46px;display:grid;place-items:center;cursor:pointer;font-size:20px}.attach-btn input{display:none}.chat-file-note{font-size:12px;margin-top:8px}.chat-attachment{display:block;margin:6px 0 8px;color:var(--primary);font-weight:900}.chat-attachment img{max-width:260px;max-height:220px;border-radius:14px;margin-bottom:5px;border:1px solid var(--line);object-fit:cover}.chat-attachment.file{background:#fff;border:1px dashed #bcdcf7;border-radius:14px;padding:10px}.support-card{background:#f8fbff;border:1px solid var(--line);border-radius:18px;padding:14px;margin:12px 0}.support-card p{margin:6px 0 12px}.chat-dashboard .badge{font-size:11px;padding:3px 7px}
@media(max-width:1200px){.chat-shell{grid-template-columns:300px 1fr}.chat-right{grid-column:1 / -1;height:auto;max-height:360px}.chat-main,.chat-left{height:calc(100vh - 114px)}}
@media(max-width:980px){.chat-shell{grid-template-columns:1fr}.chat-left,.chat-main,.chat-right{height:auto;min-height:auto}.chat-main{height:78vh}.chat-head{grid-template-columns:auto 1fr}.chat-actions{grid-column:1 / -1;justify-content:flex-start}.message-bubble{max-width:92%}}
@media(max-width:640px){.chat-content{padding:12px}.message-form{grid-template-columns:auto 1fr}.message-form .btn{grid-column:1 / -1}.message-list{min-height:380px}.thread-item{grid-template-columns:auto 1fr}.thread-meta{grid-column:2 / 3;justify-items:start;text-align:left}}