:root {
  --primary-color: #0f172a;
  --secondary-color: #3b82f6;
  --accent-color: #2563eb;
  --background-color: #f8fafc;
  --card-background: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --border-radius: 12px;
  --box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--primary-color);
  color: white;
  padding: 1.5rem 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-content a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.2s;
}

.header-content a:hover {
  opacity: 0.8;
}

main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.container {
  background: var(--card-background);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="datetime-local"],
select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: #f8fafc;
  transition: all 0.2s ease;
  font-family: inherit;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  background-color: #fff;
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background-color: #1d4ed8;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--primary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: #1e293b;
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.ticket-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.ticket-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  background-color: var(--background-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

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

th {
  font-weight: 600;
  color: var(--text-secondary);
  background-color: #f1f5f9;
}

.status-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.status-paid {
  background-color: #d1fae5;
  color: #065f46;
}

.status-unpaid {
  background-color: #fee2e2;
  color: #991b1b;
}

.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #f87171;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #34d399;
}

.photo-preview {
  max-width: 100%;
  border-radius: 8px;
  margin-top: 1rem;
  border: 1px solid var(--border-color);
}