:root {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary-blue: #2563eb;
  --primary-blue-hover: #1d4ed8;
  --accent-blue: #0284c7;
  --border-color: #e2e8f0;
  
  --team1-color: #eab308;
  --team1-bg: #fef9c3;
  --team1-border: #fde047;
  --team1-text: #854d0e;

  --team2-color: #ec4899;
  --team2-bg: #fce7f3;
  --team2-border: #fbcfe8;
  --team2-text: #9d174d;

  --success: #10b981;
  --danger: #ef4444;
  --radius: 10px;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header & Nav */
.topbar {
  background-color: #1e3a8a;
  color: #ffffff;
  padding: 1rem 0;
  box-shadow: var(--shadow);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav a {
  color: #e2e8f0;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.nav a:hover, .nav a.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.nav-admin {
  background-color: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

/* Main Layout */
main.container {
  flex: 1;
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.card h2 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #1e293b;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  color: #334155;
}

/* Tablas */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: #f1f5f9;
  font-weight: 600;
  color: #475569;
}

tr:hover {
  background-color: #f8fafc;
}

/* Botones */
.btn {
  display: inline-block;
  background-color: var(--primary-blue);
  color: #ffffff;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.btn:hover {
  background-color: var(--primary-blue-hover);
}

.btn-secondary {
  background-color: #64748b;
}
.btn-secondary:hover {
  background-color: #475569;
}

.btn-danger {
  background-color: var(--danger);
}
.btn-danger:hover {
  background-color: #dc2626;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Formularios */
input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.95rem;
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Estilos de Equipos */
.teams-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .teams-grid {
    grid-template-columns: 1fr;
  }
}

.team-box {
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 2px solid;
}

.team-box-1 {
  background-color: var(--team1-bg);
  border-color: var(--team1-border);
  color: var(--team1-text);
}

.team-box-2 {
  background-color: var(--team2-bg);
  border-color: var(--team2-border);
  color: var(--team2-text);
}

.team-box h3 {
  margin-top: 0;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.5rem;
}

/* Alerts */
.alert {
  padding: 0.8rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* Footer */
.footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}