:root {
    --preto: #0d0d0d;
    --preto-suave: #161616;
    --branco: #ffffff;
    --azul: #1e3fd1;
    --azul-escuro: #142c8f;
    --laranja: #ff5e1a;
    --cinza: #6b7280;
    --cinza-claro: #f4f4f6;
    --borda: #e5e7eb;
    --sucesso: #16a34a;
    --alerta: #d97706;
    --erro: #dc2626;
    --fonte-titulo: 'Oswald', 'Arial Narrow', sans-serif;
    --fonte-texto: 'Segoe UI', Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--fonte-texto);
    color: #1c1c1c;
    background: var(--branco);
}

h1, h2, h3, h4, .titulo {
    font-family: var(--fonte-titulo);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

img { max-width: 100%; }

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Botões ---------- */
.btn {
    display: inline-block;
    padding: 12px 26px;
    border-radius: 4px;
    font-family: var(--fonte-titulo);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { text-decoration: none; opacity: 0.92; }
.btn-laranja { background: var(--laranja); color: var(--branco); }
.btn-azul { background: var(--azul); color: var(--branco); }
.btn-outline { background: transparent; border-color: var(--branco); color: var(--branco); }
.btn-outline-dark { background: transparent; border-color: var(--preto); color: var(--preto); }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-danger { background: var(--erro); color: var(--branco); }
.btn-cinza { background: var(--cinza-claro); color: #1c1c1c; border-color: var(--borda); }

/* ---------- Site público: topo escuro ---------- */
.site-header {
    background: var(--preto);
    color: var(--branco);
    position: sticky;
    top: 0;
    z-index: 50;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    padding-bottom: 12px;
}
.site-header .logo { display: flex; align-items: center; gap: 10px; }
.site-header .logo img { height: 48px; width: auto; border-radius: 6px; }
.site-header nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.site-header nav a {
    color: var(--branco);
    font-family: var(--fonte-titulo);
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.site-header nav a:hover { color: var(--laranja); text-decoration: none; }

/* ---------- Hero ---------- */
.hero {
    background: linear-gradient(180deg, #000000 0%, #101010 100%);
    color: var(--branco);
    padding: 80px 0;
    text-align: center;
}
.hero h1 {
    font-size: 46px;
    margin-bottom: 10px;
}
.hero h1 span { color: var(--laranja); }
.hero p { font-size: 18px; color: #d0d0d0; max-width: 640px; margin: 0 auto 30px; }
.hero .btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Seções gerais do site ---------- */
.section { padding: 60px 0; }
.section-dark { background: var(--preto-suave); color: var(--branco); }
.section-titulo { text-align: center; margin-bottom: 40px; }
.section-titulo h2 { font-size: 32px; }
.section-titulo .linha { width: 60px; height: 4px; background: var(--laranja); margin: 12px auto 0; }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 32px; }
}

.card {
    background: var(--branco);
    border: 1px solid var(--borda);
    border-radius: 10px;
    padding: 26px;
}
.section-dark .card { background: #1f1f1f; border-color: #2c2c2c; }

.plano-card { text-align: center; border-top: 5px solid var(--azul); }
.plano-card.destaque { border-top-color: var(--laranja); transform: translateY(-6px); }
.plano-card .valor { font-family: var(--fonte-titulo); font-size: 34px; color: var(--azul); margin: 12px 0; }
.plano-card.destaque .valor { color: var(--laranja); }
.plano-card ul { list-style: none; padding: 0; margin: 16px 0; text-align: left; }
.plano-card ul li { padding: 6px 0; border-bottom: 1px dashed var(--borda); }

.horario-tabela { width: 100%; border-collapse: collapse; }
.horario-tabela th, .horario-tabela td {
    padding: 12px 10px;
    border: 1px solid #2c2c2c;
    text-align: center;
    font-size: 14px;
}
.horario-tabela th { background: var(--laranja); color: var(--branco); font-family: var(--fonte-titulo); }

.site-footer {
    background: var(--preto);
    color: #bbb;
    padding: 40px 0;
    text-align: center;
    font-size: 14px;
}
.site-footer a { color: var(--branco); }

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--borda);
    border-radius: 6px;
    font-size: 15px;
    margin-bottom: 14px;
    font-family: var(--fonte-texto);
}
label { font-weight: 600; font-size: 14px; display: block; margin-bottom: 6px; }
.form-dark .form-control { background: #1f1f1f; border-color: #333; color: var(--branco); }

.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 20px; font-size: 14px; }
.alert-sucesso { background: #dcfce7; color: #166534; }
.alert-erro { background: #fee2e2; color: #991b1b; }
.alert-info { background: #dbeafe; color: #1e3a8a; }

/* ---------- Área logada (admin/aluno) ---------- */
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
    width: 240px;
    background: var(--preto);
    color: var(--branco);
    flex-shrink: 0;
    padding: 20px 0;
}
.app-sidebar .logo-area { text-align: center; padding: 0 16px 20px; border-bottom: 1px solid #262626; margin-bottom: 16px; }
.app-sidebar .logo-area img { height: 56px; }
.app-sidebar nav a {
    display: block;
    padding: 12px 22px;
    color: #d4d4d4;
    font-size: 14px;
    font-family: var(--fonte-titulo);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-left: 4px solid transparent;
}
.app-sidebar nav a:hover, .app-sidebar nav a.ativo {
    background: #1a1a1a;
    color: var(--branco);
    border-left-color: var(--laranja);
    text-decoration: none;
}
.app-main { flex: 1; background: var(--cinza-claro); min-height: 100vh; }
.app-topbar {
    background: var(--branco);
    border-bottom: 1px solid var(--borda);
    padding: 16px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.app-content { padding: 30px; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 30px; }
@media (max-width: 960px) { .kpis { grid-template-columns: repeat(2, 1fr); } }
.kpi-card {
    background: var(--branco);
    border-radius: 10px;
    padding: 20px;
    border-left: 5px solid var(--azul);
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.kpi-card .valor { font-family: var(--fonte-titulo); font-size: 28px; }
.kpi-card .label { color: var(--cinza); font-size: 13px; text-transform: uppercase; }
.kpi-card.laranja { border-left-color: var(--laranja); }
.kpi-card.erro { border-left-color: var(--erro); }
.kpi-card.sucesso { border-left-color: var(--sucesso); }

table.tabela {
    width: 100%;
    border-collapse: collapse;
    background: var(--branco);
    border-radius: 8px;
    overflow: hidden;
}
table.tabela th, table.tabela td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--borda);
    font-size: 14px;
    text-align: left;
}
table.tabela th { background: #fafafa; text-transform: uppercase; font-size: 12px; color: var(--cinza); }
table.tabela tr:hover { background: #fafafa; }

.badge { padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; display: inline-block; }
.badge-verde { background: #dcfce7; color: #166534; }
.badge-vermelho { background: #fee2e2; color: #991b1b; }
.badge-amarelo { background: #fef3c7; color: #92400e; }
.badge-cinza { background: #f3f4f6; color: #374151; }

.painel { background: var(--branco); border-radius: 10px; padding: 24px; margin-bottom: 24px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.painel h3 { margin-top: 0; font-size: 18px; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }

.agenda-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; }
@media (max-width: 960px) { .agenda-grid { grid-template-columns: 1fr; } }
.agenda-dia { background: var(--branco); border-radius: 8px; padding: 14px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.agenda-dia h4 { margin: 0 0 10px; font-size: 14px; color: var(--azul); }
.agenda-turma { border: 1px solid var(--borda); border-radius: 6px; padding: 10px; margin-bottom: 10px; font-size: 13px; }
.agenda-turma .vagas { color: var(--cinza); font-size: 12px; }
.agenda-turma .cheio { color: var(--erro); font-weight: 600; }