/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.5;
}

a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Navigation */
.admin-nav {
  background: #1e293b;
  color: #fff;
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.nav-brand { font-weight: 700; font-size: 1.1rem; }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-links a { color: #94a3b8; font-size: 0.9rem; }
.nav-links a:hover, .nav-links a.active { color: #fff; text-decoration: none; }
.nav-logout { color: #f87171 !important; }
.cm-nav { background: #0f4c75; }

/* Container */
.admin-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Cards */
.card {
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.card h2 { margin-bottom: 1rem; font-size: 1.2rem; color: #1e293b; }

/* Forms */
.form-group {
  margin-bottom: 1rem;
  flex: 1;
  min-width: 200px;
}
.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
  font-size: 0.9rem;
  color: #475569;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 0.95rem;
  background: #fff;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #fff;
  color: #333;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.15s;
}
.btn:hover { background: #f1f5f9; text-decoration: none; }
.btn-primary { background: #2563eb; color: #fff; border-color: #2563eb; }
.btn-primary:hover { background: #1d4ed8; }
.btn-success { background: #16a34a; color: #fff; border-color: #16a34a; }
.btn-success:hover { background: #15803d; }
.btn-warning { background: #ea580c; color: #fff; border-color: #ea580c; }
.btn-warning:hover { background: #c2410c; }
.btn-danger { background: #dc2626; color: #fff; border-color: #dc2626; }
.btn-danger:hover { background: #b91c1c; }
.btn-block { display: block; width: 100%; }
.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table th, .data-table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.9rem;
}
.data-table th {
  background: #f8fafc;
  font-weight: 600;
  color: #475569;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-admin { background: #dbeafe; color: #1e40af; }
.badge-cm { background: #fef3c7; color: #92400e; }
.badge-borrador { background: #e2e8f0; color: #475569; }
.badge-activa { background: #dcfce7; color: #166534; }
.badge-finalizada { background: #fef2f2; color: #991b1b; }

/* Utility */
.inline-form { display: inline; }
.text-muted { color: #94a3b8; }
.text-error { color: #dc2626; }
.back-link { display: inline-block; margin-bottom: 1rem; color: #64748b; }
.back-link:hover { color: #334155; }

/* Public link box */
.public-link-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #f8fafc;
  padding: 0.75rem;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
}
.public-link-box code { flex: 1; font-size: 0.95rem; word-break: break-all; }

/* Login */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e293b 0%, #0f4c75 100%);
}
.login-box {
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  width: 100%;
  max-width: 400px;
}
.login-box h1 {
  text-align: center;
  color: #1e293b;
  margin-bottom: 0.25rem;
}
.login-box h2 {
  text-align: center;
  color: #64748b;
  font-weight: 400;
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

/* Error pages */
.error-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}
.error-page h1 { font-size: 5rem; color: #e2e8f0; }
.error-page h2 { margin-bottom: 0.5rem; color: #475569; }
.error-page p { color: #94a3b8; margin-bottom: 1.5rem; }