:root{
  --green:#0d4d2a;
  --green2:#1a6b3a;
  --bg:#f6f7f9;

  --text:#111827;
  --muted:#6b7280;
  --border: rgba(0,0,0,.12);
}

*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:var(--bg);
  margin:0;
  color:var(--text);
}

a{ color: var(--green2); text-decoration:none; }
a:hover{ text-decoration: underline; }

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
}

.card{
  background:#fff;
  border-radius:14px;
  box-shadow:0 10px 30px rgba(0,0,0,.06);
  padding:16px;
  overflow:hidden;
}

.header{
  background: var(--green);
  color:#fff;
  padding: 14px 16px;
}
.header .brand{
  font-weight: 800;
  letter-spacing:.5px;
}

/* NAV: desktop quebra em linhas; mobile vira barra rolável */
.nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:10px;
}
.nav a{
  background:#fff;
  padding:8px 10px;
  border-radius:10px;
  border:1px solid rgba(0,0,0,.08);
  white-space:nowrap;
}

/* TABELAS: envolva com <div class="table-wrap"> ... */
.table-wrap{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.table{
  width:100%;
  border-collapse: collapse;
}
.table th, .table td{
  border-bottom:1px solid rgba(0,0,0,.08);
  padding:10px 8px;
  text-align:left;
  vertical-align:top;
}
.table th{
  font-size:12px;
  letter-spacing:.3px;
  text-transform:uppercase;
  color:#1f2937;
}

/* BOTÕES */
.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:10px;
  border:1px solid var(--border);
  background:#fff;
  cursor:pointer;
  line-height:1.1;
}
.btn:hover{ filter: brightness(0.98); }
.btn:active{ transform: translateY(1px); }
.btn-primary{ background:var(--green2); color:#fff; border-color:transparent; }
.btn-danger{ background:#b42318; color:#fff; border-color:transparent; }
.btn-secondary{ background:#111827; color:#fff; border-color:transparent; }

/* GRID */
.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
}
.col-6{ grid-column: span 6; }
.col-4{ grid-column: span 4; }
.col-3{ grid-column: span 3; }
.col-12{ grid-column: span 12; }

/* INPUTS */
.input, select, textarea{
  width:100%;
  padding:10px;
  border-radius:10px;
  border:1px solid rgba(0,0,0,.15);
  background:#fff;
  font-size:16px; /* evita zoom no iPhone */
}
textarea{ min-height: 90px; }

small.muted{ color:var(--muted); }

/* BADGES */
.badge{
  display:inline-block;
  padding:3px 8px;
  border-radius:999px;
  font-size:12px;
  border:1px solid rgba(0,0,0,.12);
}
.badge-open{ background:#fff7ed; }
.badge-paid{ background:#ecfdf5; }

.footer{
  margin-top: 18px;
  color:var(--muted);
  font-size:12px;
}

/* Busca do topo (Notas, Pessoas etc) */
.top-search{
  display:flex;
  gap:8px;
  align-items:center;
  flex-wrap:wrap;
}
.top-search__input{
  flex:1;
  min-width:220px;
}

/* BREAKPOINTS */
@media (max-width: 1024px){
  .container{ padding: 14px; }
  .col-3{ grid-column: span 6; } /* cards 2 por linha */
}

@media (max-width: 820px){
  .nav{
    flex-wrap:nowrap;
    overflow-x:auto;
    padding-bottom:6px;
  }
  .col-6,.col-4,.col-3{ grid-column: span 12; } /* 1 coluna */
  .btn{ width:100%; text-align:center; } /* padrão no mobile */
  .top-search__btn{ width:auto; } /* exceção: busca do topo */
}