/* Base/Layout (includes/layout.php) */
:root {
    --bg:       #0f1117;
    --surface:  #1a1d27;
    --card:     #21253a;
    --border:   #2e3354;
    --text:     #e2e8f0;
    --muted:    #8892a4;
    --accent:   #4f7cff;
    --ok:       #22c55e;
    --warn:     #f59e0b;
    --danger:   #ef4444;
    --radius:   10px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, sans-serif; background: var(--bg); color: var(--text);
       font-size: 15px; line-height: 1.6; }

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

/* Nav */
nav.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    min-height: 58px;
    position: sticky;
    top: 0;
    z-index: 10;
}
nav .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--text);
    margin-right: auto;
    min-width: 0;
}
nav .brand:hover { text-decoration: none; opacity: .9; }
nav .brand img { width: 82px; height: auto; display: block; }
nav .brand span { font-size: 0.82rem; font-weight: 650; letter-spacing: .01em; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 0.4rem; }
.nav-item,
.nav-trigger {
    color: var(--muted);
    background: transparent;
    border: 0;
    font: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 6px 9px;
    border-radius: 7px;
    line-height: 1.2;
}
.nav-item:hover,
.nav-item.ativo,
.nav-group:hover .nav-trigger,
.nav-group:focus-within .nav-trigger,
.nav-trigger.ativo {
    color: var(--text);
    background: var(--card);
    text-decoration: none;
}
.nav-group { position: relative; }
.nav-trigger::after { content: "▾"; font-size: .68rem; margin-left: .35rem; color: var(--muted); }
.nav-submenu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 190px;
    display: none;
    padding: 0.45rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 14px 35px rgba(0,0,0,.32);
}
.nav-group:hover .nav-submenu,
.nav-group:focus-within .nav-submenu { display: block; }
.nav-submenu a {
    display: block;
    color: var(--muted);
    padding: 0.55rem 0.7rem;
    border-radius: 7px;
    font-size: 0.9rem;
    white-space: nowrap;
}
.nav-submenu a:hover,
.nav-submenu a.ativo {
    color: var(--text);
    background: var(--card);
    text-decoration: none;
}

/* Layout */
main { max-width: 1200px; margin: 2rem auto; padding: 0 1.5rem; }
h1 { font-size: 1.4rem; font-weight: 600; margin-bottom: 1.5rem; }
h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border);
        border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.25rem; }

/* Tabela */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.65rem 0.85rem; text-align: left; border-bottom: 1px solid var(--border); }
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.02); }

/* Formulários */
.form-row { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 4px; }
input, select, textarea {
    width: 100%; padding: 0.55rem 0.75rem;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 7px; color: var(--text); font-size: 0.95rem;
}
input::placeholder,
textarea::placeholder {
    color: #3a4050;
    color: color-mix(in srgb, var(--bg) 62%, var(--muted));
    opacity: 1;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }

/* Botões */
.btn { display: inline-block; padding: 0.5rem 1.1rem; border-radius: 7px;
       border: none; cursor: pointer; font-size: 0.9rem; font-weight: 500;
       text-align: center; transition: opacity .15s; }
.btn:hover { opacity: .85; text-decoration: none; }
.btn-primary  { background: var(--accent);  color: #fff; }
.btn-ok       { background: var(--ok);      color: #000; }
.btn-warn     { background: var(--warn);    color: #000; }
.btn-danger   { background: var(--danger);  color: #fff; }
.btn-ghost    { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-sm       { padding: 0.3rem 0.7rem; font-size: 0.82rem; }

/* Badges de status */
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px;
         font-size: 0.78rem; font-weight: 600; }
.badge-ok     { background: rgba(34,197,94,.15);  color: var(--ok); }
.badge-warn   { background: rgba(245,158,11,.15); color: var(--warn); }
.badge-danger { background: rgba(239,68,68,.15);  color: var(--danger); }
.vence-este-mes { background-color: rgba(245,158,11,.1) !important; }
.vence-este-mes td { border-bottom: 1px solid var(--warn) !important; }
.text-vence-mes { color: var(--warn); font-weight: 700; }

/* Flash */
.flash { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1.25rem; font-size: 0.92rem; }
.flash-ok     { background: rgba(34,197,94,.12);  border: 1px solid rgba(34,197,94,.3);  color: var(--ok); }
.flash-erro   { background: rgba(239,68,68,.12);  border: 1px solid rgba(239,68,68,.3);  color: var(--danger); }
.flash-aviso  { background: rgba(245,158,11,.12); border: 1px solid rgba(245,158,11,.3); color: var(--warn); }

/* Grid de cards de resumo */
.resumo-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-bottom: 1.5rem; }
.resumo-card { background: var(--card); border: 1px solid var(--border);
               border-radius: var(--radius); padding: 1rem; }
.resumo-card .valor { font-size: 2rem; font-weight: 700; }
.resumo-card .label { font-size: 0.8rem; color: var(--muted); margin-top: 2px; }

@media (max-width: 760px) {
    nav.topbar { align-items: flex-start; flex-direction: column; gap: .65rem; padding: .75rem 1rem; }
    nav .brand { width: 100%; }
    nav .brand img { width: 76px; }
    .nav-links { width: 100%; flex-wrap: wrap; align-items: flex-start; }
    .nav-submenu { left: 0; right: auto; }
}