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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #ffffff;
  height: 100vh;
  padding: 0;
  margin: 0;
  color: #000;
  overflow: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  padding: 30px;
  height: calc(100vh - 40px);
  overflow-y: auto;
  overflow-x: hidden;
}

h1 {
  color: #000000;
  margin-bottom: 20px;
  text-align: center;
  font-size: 2em;
  font-weight: 600;
}

h2 {
  color: #000000;
  margin-bottom: 15px;
  font-size: 1.5em;
  font-weight: 500;
}

/* QR Kod Gösterimi */
.qr-container {
  text-align: center;
  padding: 30px;
}

.qr-code-wrapper {
  display: inline-block;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin: 20px 0;
}

.qr-code-wrapper img {
  max-width: 300px;
  width: 100%;
  height: auto;
}

.countdown {
  font-size: 2em;
  font-weight: bold;
  color: #000000;
  margin: 20px 0;
}

.countdown.warning {
  color: #666666;
}

.status-message {
  padding: 15px;
  border-radius: 8px;
  margin: 20px 0;
  font-weight: 500;
}

.status-success {
  background: rgba(0, 0, 0, 0.05);
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.status-error {
  background: rgba(0, 0, 0, 0.05);
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.3);
}

.status-info {
  background: rgba(0, 0, 0, 0.05);
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

/* Kamera Bölümü */
.camera-container {
  text-align: center;
  margin: 20px 0;
}

#video {
  width: 100%;
  max-width: 500px;
  border-radius: 8px;
  background: #000;
}

#canvas {
  display: none;
}

/* Form Elemanları */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #555;
}

input[type="text"],
input[type="number"],
input[type="date"],
select {
  width: 100%;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
  transition: border-color 0.3s;
}

input:focus,
select:focus {
  outline: none;
  border-color: #667eea;
}

button {
  background: #000000;
  color: white;
  border: 1px solid #000000;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

button:hover {
  background: #1a1a1a;
  border-color: #1a1a1a;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  background: #666666;
}

.btn-danger {
  background: #000000;
  border-color: #000000;
}

.btn-success {
  background: #000000;
  border-color: #000000;
}

/* Tablo */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  background: #f8f9fa;
  font-weight: 600;
  color: #555;
}

tr:hover {
  background: #f8f9fa;
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.85em;
  font-weight: 500;
}

.badge-giris {
  background: rgba(0, 0, 0, 0.08);
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.badge-cikis {
  background: rgba(0, 0, 0, 0.08);
  color: #000000;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

/* Kayıt Listesi */
.recent-logs {
  margin-top: 30px;
}

.log-item {
  padding: 15px;
  border-left: 4px solid #000000;
  background: #f8f9fa;
  margin-bottom: 10px;
  border-radius: 4px;
}

.log-item.giris {
  border-left-color: #000000;
}

.log-item.cikis {
  border-left-color: #666666;
}

.log-item strong {
  color: #000000;
}

/* Navigation */
.nav {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.nav a {
  padding: 10px 20px;
  background: #f8f9fa;
  color: #000000;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.nav a:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.2);
}

.nav a.active {
  background: #000000;
  color: white;
  border-color: #000000;
}

/* User Select */
.user-select-container {
  margin-bottom: 30px;
}

#userSelect {
  width: 100%;
  padding: 12px;
  font-size: 16px;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  h1 {
    font-size: 1.5em;
  }

  .qr-code-wrapper img {
    max-width: 250px;
  }

  table {
    font-size: 14px;
  }

  th, td {
    padding: 8px;
  }
}

/* Loading */
.loading {
  text-align: center;
  padding: 20px;
  color: #667eea;
}

/* Admin Panel */
.admin-section {
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 2px solid #eee;
}

.admin-section:last-child {
  border-bottom: none;
}

.action-buttons {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.action-buttons button {
  flex: 1;
}

/* Export Butonu */
.export-buttons {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}