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

body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

/* Header */
header {
  background: #007BFF;
  color: #fff;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header h1 {
  font-size: 1.5rem;
}
header a {
  color: #fff;
  text-decoration: none;
}

/* Navigation */
nav ul {
  list-style: none;
  display: flex;
  margin: 10px 0;
  padding: 0;
}
nav ul li {
  margin-right: 15px;
}
nav ul li a {
  color: #007BFF;
  text-decoration: none;
  font-weight: bold;
}
nav ul li a:hover {
  text-decoration: underline;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 20px auto;
  padding: 0 15px;
}

/* Login Form */
.login-container {
  max-width: 400px;
  margin: 60px auto 0;
  padding: 20px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  border-radius: 8px;
}
@media (max-width: 480px) {
  .login-container {
    width: 90%;
    margin-top: 30px;
    padding: 15px;
  }
}
.login-container h2 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}
.error {
  color: #d9534f;
  text-align: center;
  margin-bottom: 15px;
}

/* Form */
.form-group {
  margin-bottom: 15px;
}
.form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.9rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  background: #007BFF;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  text-align: center;
}
.btn:hover {
  background: #0069d9;
}

/* Statistics Cards */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 20px;
}
.card {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  text-align: center;
}
.card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

/* Sections */
.section {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}
.section h2 {
  margin-top: 0;
  margin-bottom: 15px;
  font-size: 1.3rem;
}

/* Messages */
.message {
  padding: 10px;
  background: #dff0d8;
  color: #3c763d;
  border-radius: 4px;
  margin-bottom: 20px;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}
table th,
table td {
  padding: 12px;
  border-bottom: 1px solid #ddd;
  text-align: left;
}
table th {
  background: #f7f7f7;
}

/* Announcement & Decision */
.announcement,
.decision {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}
.announcement h3,
.decision h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}
.announcement .meta,
.decision .meta {
  font-size: 0.9rem;
  color: #777;
  margin-bottom: 10px;
}

/* Responsive Tweaks */
@media (max-width: 600px) {
  header,
  .container {
    padding: 0 10px;
  }
}