/* ======== VARIABLES GLOBALES ======== */
:root {
  --bg: #f7f8fa;
  --text: #1a1a1a;
  --muted: #777;
  --primary: #d32f2f;
  --white: #fff;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.1);
  --transition: 0.25s ease;
  font-family: "Poppins", Arial, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ======== CONTENEDOR PRINCIPAL ======== */
.container {
  max-width: 1100px;
  margin: 30px auto;
  padding: 0 16px;
}

/* ======== HEADER ======== */
.header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.logo {
  background: var(--primary);
  color: var(--white);
  font-weight: 700;
  font-size: 20px;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  box-shadow: var(--shadow);
}

.title {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
}

.sub {
  font-size: 13px;
  color: var(--muted);
}

/* ======== CONTROLES ======== */
.controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 20px;
  gap: 10px;
}

.btn {
  background: var(--primary);
  color: var(--white);
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: var(--transition);
  box-shadow: var(--shadow);
  font-size: 14px;
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.search input {
  padding: 8px 12px;
  border: 1px solid #ccc;
  border-radius: var(--radius);
  width: 220px;
  transition: var(--transition);
}

.search input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.2);
}

/* ======== GRID DE TORNEOS ======== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

/* ======== TARJETA DE TORNEO ======== */
.card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.card h3 {
  font-size: 16px;
  color: var(--text);
  margin: 10px 12px 4px 12px;
  font-weight: 600;
}

.card p {
  font-size: 13px;
  color: var(--muted);
  margin: 0 12px 12px 12px;
}

/* ======== RESPONSIVE ======== */
@media (max-width: 600px) {
  .logo {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .title {
    font-size: 18px;
  }

  .btn {
    padding: 6px 12px;
    font-size: 13px;
  }

  .search input {
    width: 100%;
  }
}