:root {
  --fifa-blue: #002868;
  --fifa-red: #cc0000;
  --fifa-gold: #c8a951;
  --bg-dark: #0a0e1a;
  --bg-card: #111827;
  --bg-card2: #1a2235;
  --text-main: #f0f4ff;
  --text-muted: #8899aa;
  --border: #1e3050;
  --green: #22c55e;
  --yellow: #eab308;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
}

/* HEADER */
header {
  background: linear-gradient(135deg, var(--fifa-blue) 0%, #001540 100%);
  border-bottom: 3px solid var(--fifa-gold);
  padding: 0 20px;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 16px;
  flex-wrap: wrap;
}
.header-title {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-title .trophy { font-size: 2.4rem; }
.header-title h1 { font-size: 1.4rem; font-weight: 700; line-height: 1.2; }
.header-title h1 span { color: var(--fifa-gold); display: block; font-size: 0.85rem; font-weight: 400; letter-spacing: 1px; }
.header-badge {
  background: var(--fifa-red);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.6} }

/* NAV TABS */
nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 4px;
  padding: 0 20px;
  overflow-x: auto;
}
.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 14px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all .2s;
  letter-spacing: 0.3px;
}
.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { color: var(--fifa-gold); border-bottom-color: var(--fifa-gold); }

/* MAIN */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 20px;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* SECTION TITLE */
.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fifa-gold);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* GROUPS GRID */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}
.group-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.group-card-header {
  background: linear-gradient(135deg, var(--fifa-blue), #003580);
  padding: 10px 16px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.group-card-header span { color: var(--fifa-gold); font-size: 1.1rem; }
.group-table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.group-table th {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 8px 4px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.3px;
}
.group-table th.left { text-align: left; }
.group-table td {
  padding: 9px 4px;
  text-align: center;
  font-size: 0.85rem;
  border-bottom: 1px solid #0d1a2e;
}
.group-table td.left { text-align: left; }
/* coluna de seleção ocupa o espaço restante; numéricas são fixas */
.group-table col.col-dot  { width: 18px; }
.group-table col.col-team { width: auto; }
.group-table col.col-num  { width: 30px; }
.group-table col.col-pts  { width: 36px; }
.group-table td:first-child,
.group-table th:first-child { padding-left: 10px; }
.group-table td:last-child,
.group-table th:last-child  { padding-right: 12px; }
.group-table tr:last-child td { border-bottom: none; }
.group-table tr:nth-child(-n+2) td { background: rgba(0,40,104,0.25); }
.team-name-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}
.team-flag { font-size: 1.1rem; }
.team-name { font-weight: 500; }
.pts-cell { font-weight: 700; color: var(--fifa-gold); }
.qualify-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  display: inline-block;
  margin-right: 4px;
}

/* MATCHES */
.matches-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all .2s;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--fifa-blue);
  border-color: var(--fifa-blue);
  color: #fff;
}
.match-day-group { margin-bottom: 24px; }
.match-day-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 0 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
}
.match-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 8px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  transition: border-color .2s;
}
.match-card:hover { border-color: #2a4070; }
.match-card.finalizado { border-left: 3px solid var(--green); }
.match-card.em-andamento { border-left: 3px solid var(--yellow); }
.match-team {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
}
.match-team.away { flex-direction: row-reverse; text-align: right; }
.match-center {
  text-align: center;
  min-width: 90px;
}
.match-score {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-main);
}
.match-vs {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 700;
}
.match-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.match-status {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-top: 4px;
  display: inline-block;
}
.status-finalizado { background: rgba(34,197,94,.15); color: var(--green); }
.status-agendado { background: rgba(100,116,139,.15); color: var(--text-muted); }
.status-em-andamento { background: rgba(234,179,8,.15); color: var(--yellow); }
.match-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 6px;
  text-align: center;
  grid-column: 1 / -1;
}
.match-group-badge {
  font-size: 0.68rem;
  font-weight: 700;
  background: rgba(0,40,104,.5);
  color: var(--fifa-gold);
  padding: 2px 7px;
  border-radius: 4px;
}

/* LOADING / EMPTY */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.spinner {
  display: inline-block;
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--fifa-gold);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin-bottom: 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ADMIN LINK */
.admin-link {
  position: fixed;
  bottom: 20px; right: 20px;
  background: var(--fifa-red);
  color: #fff;
  padding: 10px 18px;
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(204,0,0,.4);
  transition: transform .2s;
  z-index: 200;
}
.admin-link:hover { transform: scale(1.05); }

/* FOOTER */
footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.78rem;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

/* RESPONSIVE — tablet */
@media (max-width: 900px) {
  .groups-grid { grid-template-columns: 1fr 1fr; }
}

/* RESPONSIVE — mobile */
@media (max-width: 600px) {
  /* Header compacto */
  .header-inner { padding: 12px 0; gap: 8px; }
  .header-title .trophy { font-size: 1.8rem; }
  .header-title h1 { font-size: 1rem; }
  .header-title h1 span { font-size: 0.72rem; }
  .header-badge { font-size: 0.65rem; padding: 3px 8px; }

  /* Main */
  main { padding: 12px 10px; }
  .section-title { font-size: 0.9rem; }

  /* Grupos — uma coluna */
  .groups-grid { grid-template-columns: 1fr; gap: 12px; }

  /* Tabela de grupos: fonte menor, colunas mais apertadas */
  .group-table th { font-size: 0.6rem; padding: 6px 3px; letter-spacing: 0; }
  .group-table td { font-size: 0.78rem; padding: 8px 3px; }
  .group-table col.col-num  { width: 24px; }
  .group-table col.col-pts  { width: 28px; }
  .team-flag { font-size: 0.95rem; }
  .team-name { font-size: 0.78rem; }
  .pts-cell  { font-size: 0.82rem; }

  /* Cards de jogos: empilha times em coluna no mobile */
  .match-card {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 6px;
    padding: 12px;
  }
  .match-team,
  .match-team.away {
    flex-direction: row;
    text-align: left;
    justify-content: flex-start;
  }
  .match-team.away { justify-content: flex-end; }
  .match-center {
    order: -1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: unset;
  }
  .match-score { font-size: 1.3rem; letter-spacing: 1px; }
  .match-time { margin-top: 0; }
  .match-meta { font-size: 0.65rem; }

  /* Filtros de grupo */
  .matches-filter { gap: 6px; }
  .filter-btn { font-size: 0.75rem; padding: 5px 10px; }

  /* Botão admin menor */
  .admin-link { font-size: 0.75rem; padding: 8px 14px; bottom: 14px; right: 14px; }

  /* Footer */
  footer { font-size: 0.7rem; padding: 16px 12px; }
}

/* Telas muito pequenas (< 380px) */
@media (max-width: 380px) {
  .group-table th { font-size: 0.55rem; padding: 5px 2px; }
  .group-table td { font-size: 0.72rem; padding: 7px 2px; }
  .team-name { font-size: 0.72rem; }
}