/* GREEN EXCHANGE - Simple UI (no frameworks) */
:root{
  --bg:#0b1220;
  --text:#eaf0ff;
  --muted:#b7c2e0;
  --line:rgba(255,255,255,.10);
  --primary:#53d18a;
  --danger:#ff5c7a;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --radius: 14px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: radial-gradient(1200px 700px at 20% -10%, rgba(83,209,138,.20), transparent 60%),
              radial-gradient(1000px 600px at 110% 0%, rgba(64,134,255,.18), transparent 55%),
              var(--bg);
  color:var(--text);
}

.hidden{display:none !important}
a{color:inherit}

.topbar{
  position:sticky; top:0; z-index:10;
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 18px;
  background: rgba(10,16,30,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}

.brand{display:flex; gap:12px; align-items:center}
.logo{
  width:42px;height:42px;border-radius:12px;
  background: linear-gradient(135deg, rgba(83,209,138,.95), rgba(64,134,255,.85));
  display:flex;align-items:center;justify-content:center;
  font-weight:900; color:#06111d; letter-spacing:.5px;
}
.brand-title{font-weight:900; letter-spacing:.6px}
.brand-sub{font-size:12px; color:var(--muted)}

.topbar-actions{display:flex; gap:10px; align-items:center}
.chip{
  display:inline-flex;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  background: rgba(255,255,255,.04);
}

.container{
  width:min(1100px, 92vw);
  margin: 26px auto 42px;
}

.grid-2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:16px;
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
}

h1{margin:0 0 8px;font-size:28px}
h2{margin:0 0 8px;font-size:22px}
h3{margin:0 0 10px;font-size:18px}
p{margin:10px 0; line-height:1.6}
.muted{color:var(--muted)}
.list{margin:10px 0 0; padding-left:18px}
.list li{margin:6px 0}

.form{display:grid; gap:12px; margin-top:14px}
label{display:grid; gap:8px; font-size:14px; color:var(--muted)}
input, select{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(6,17,29,.55);
  color:var(--text);
  outline:none;
}
input::placeholder{color: rgba(183,194,224,.65)}
input:focus, select:focus{border-color: rgba(83,209,138,.7); box-shadow: 0 0 0 3px rgba(83,209,138,.12)}

.row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:12px;
}

.btn{
  appearance:none;
  border:1px solid transparent;
  border-radius: 12px;
  padding:11px 14px;
  font-weight:700;
  cursor:pointer;
  transition: .15s transform, .15s opacity;
}
.btn:active{transform: translateY(1px)}
.btn-primary{
  background: linear-gradient(135deg, rgba(83,209,138,.95), rgba(83,209,138,.70));
  color:#06111d;
}
.btn-dark{
  background: linear-gradient(135deg, rgba(255,255,255,.14), rgba(255,255,255,.06));
  border-color: rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost{
  background: transparent;
  border-color: rgba(255,255,255,.18);
  color: var(--text);
}
.btn-ghost:hover{opacity:.9}

.msg{
  min-height: 18px;
  font-size: 13px;
  color: var(--muted);
}
.msg.ok{color: rgba(83,209,138,.95)}
.msg.err{color: var(--danger)}

.app-header{
  display:flex; justify-content:space-between; align-items:flex-start;
  gap:16px; margin-bottom: 14px;
}
.score-box{
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  min-width: 280px;
}
.score-label{font-size:12px; color:var(--muted); margin-bottom:6px}
.score-value{font-weight:900}

.tabs{
  display:flex; gap:10px; flex-wrap:wrap;
  margin: 10px 0 16px;
}
.tab{
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 999px;
  cursor:pointer;
  font-weight:800;
}
.tab.active{
  background: rgba(83,209,138,.12);
  border-color: rgba(83,209,138,.35);
  color: var(--text);
}

.panel{display:none}
.panel.show{display:block}

.panel-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:16px;
}

.kv{display:grid; gap:8px}
.table-wrap{
  width:100%;
  overflow:auto;
  border-radius: 12px;
  border: 1px solid var(--line);
}
table{
  width:100%;
  border-collapse: collapse;
  min-width: 780px;
  background: rgba(6,17,29,.35);
}
th, td{
  padding: 12px 12px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  text-align:left;
  font-size:14px;
}
th{color: var(--muted); font-weight:900}
tbody tr:hover{background: rgba(255,255,255,.03)}

.note{
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px dashed rgba(255,255,255,.20);
  background: rgba(255,255,255,.03);
  color: var(--muted);
}

.team{display:grid; gap:12px; margin-top: 14px}
.member{
  display:flex; align-items:flex-start; gap:12px;
  padding: 12px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}
.avatar{
  width:34px;height:34px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background: rgba(83,209,138,.16);
  border: 1px solid rgba(83,209,138,.25);
  font-weight:900;
}
.m-name{font-weight:900}
.m-role{font-size:13px; color:var(--muted); margin-top:2px; line-height:1.5}

.spacer{height:14px}

.footer{
  padding: 24px 14px;
  text-align:center;
  color: rgba(183,194,224,.85);
  font-size: 13px;
  border-top: 1px solid var(--line);
  background: rgba(10,16,30,.55);
}

/* KPI grid */
.kpi{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
}
.kpi-item{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  border-radius: 14px;
  padding: 12px;
}
.kpi-num{font-weight:1000; font-size:20px}
.kpi-label{color: var(--muted); margin-top:6px; font-size:13px}

/* FAQ */
.faq{display:grid; gap:10px}
.faq-q{font-weight:900}
.faq-a{color: var(--muted); line-height:1.6}

@media (max-width: 900px){
  .grid-2{grid-template-columns: 1fr}
  .panel-grid{grid-template-columns: 1fr}
  .row{grid-template-columns: 1fr}
  .app-header{flex-direction:column}
  .score-box{min-width: unset; width:100%}
  table{min-width: 680px}
  .kpi{grid-template-columns: 1fr}
}