:root{
    --bg: #0f172a;
    --bg2:#111c3a;
    --txt:#e2e8f0;
    --muted:#94a3b8;
    --accent:#38bdf8;
    --radius: 12px;
}

body{
    background:#dadada;
    min-height:100vh;
}

/* ===== Sidebar ===== */
aside{
    width: 320px;
    background: #000;
    color: var(--txt);
    padding: 16px;
    box-sizing: border-box;
    display:flex;
    flex-direction:column;
}

.brand{
    display:flex;
    align-items:center;
    gap:10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    background: rgba(255,255,255,0.04);
    margin-bottom: 14px;
}

.brand .title{ font-weight:650; }
.brand .subtitle{ font-size:12px; color:var(--muted); }

nav{
    display:flex;
    flex-direction:column;
    gap:10px;
    flex:1;
}

details{
    border-radius: var(--radius);
    overflow:hidden;
    background: rgba(255,255,255,0.03);
}

summary{
    list-style:none;
    cursor:pointer;
    padding: 12px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    user-select:none;
}

summary::-webkit-details-marker{ display:none; }

.section-left{
    display:flex;
    align-items:center;
    gap:10px;
}

.icon{
    width: 26px;
    height: 26px;
    border-radius: 9px;
    display:grid;
    place-items:center;
    background: rgba(56,189,248,0.12);
    color: var(--accent);
    font-size: 14px;
    font-weight: 700;
}

.section-title{ font-weight:600; }

.chev{
    color: var(--muted);
    transition: transform .18s ease;
}

details[open] .chev{ transform: rotate(180deg); }

.items{
    padding: 6px 0 10px;
    border-top: 1px solid rgba(148,163,184,0.18);
}

a.item{
    display:flex;
    align-items:center;
    gap:10px;
    padding: 10px 12px;
    text-decoration:none;
    color: var(--txt);
    font-size: 14px;
}

a.item:hover{ background: var(--bg2); }

.bullet{
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: rgba(226,232,240,0.45);
}

a.item.active{
    background: rgba(56,189,248,0.16);
    border-left: 3px solid var(--accent);
    padding-left: 9px;
}

.footer{
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid rgba(148,163,184,0.2);
    font-size: 12px;
    color: var(--muted);
    text-align: right;
}

/* ===== Conteúdo ===== */
main{
    position: relative;
    overflow: hidden;
    min-height:100vh;
}

.watermark{
    position:absolute;
    left: 32px;
    bottom: 24px;
    width: 520px;
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

main .content-layer{
    position: relative;
    z-index: 1;
}

/* Botão Verde (ecoT) */
.btn-ecot-verde{
    background-color: #00b069;
    border-color: #00b069;
    color: #ffffff;
    font-weight: 600;
}

.btn-ecot-verde:hover,
.btn-ecot-verde:focus{
    background-color: #00965a;
    border-color: #00965a;
    color: #ffffff;
}