/* custom-style.css */
/* ไฟล์ CSS สำหรับ login.php และหน้าอื่นๆ ในระบบบันทึกกิจกรรมนักศึกษา */

/* ฟอนต์และการตั้งค่าทั่วไป */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&display=swap');

:root {
  --primary-color: #e86e09; /* สีหลักคล้าย AdminLTE */
  --primary-hover: #c9610a;
  --secondary-color: #FF9D23;
  --success-color: #00a65a;
  --info-color: #00c0ef;
  --warning-color: #f39c12;
  --danger-color: #dd4b39;
  --text-color: #333;
  --light-text: #777;
  --white: #fff;
  --dark-bg: #222d32;
  --card-shadow: 0 4px 25px 0 rgba(0, 0, 0, 0.1);
  --hover-shadow: 0 8px 35px 0 rgba(0, 0, 0, 0.2);
}

/* พื้นฐาน */
body {
  font-family: 'Sarabun', sans-serif;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text-color);
  height: 100vh;
  margin: 0;
  padding: 0;
}

/* เลย์เอาต์ login */
body {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
}

/* Footer Styles */
.footer {
    background-color: #f5f5f7;
    padding: 15px 0;
    margin-top: 20px;
    border-top: 1px solid #ddd;
    width: 100%;
    color: #666;
    font-size: 0.9rem;
}

.footer p {
    margin: 0;
}


.login-container {
  max-width: 400px;
  width: 100%;
  padding: 20px;
  z-index: 1;
  position: relative;
}

/* การ์ด */
.card {
  border: none;
  border-radius: 15px;
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.3s ease;
  overflow: hidden;
  background: var(--white);
}

.card:hover {
  box-shadow: var(--hover-shadow);
}

.card-header {
  background: var(--primary-color);
  color: var(--white);
  border-radius: 15px 15px 0 0 !important;
  border-bottom: none;
  padding: 20px;
  font-weight: 600;
}

.card-body {
  padding: 30px;
}

/* ปุ่ม */
.btn {
  border-radius: 4px;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 10px 20px;
}

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

.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
  background-color: var(--primary-hover) !important;
  border-color: var(--primary-hover) !important;
  box-shadow: 0 5px 15px rgba(60, 141, 188, 0.4) !important;
}

.btn-block {
  display: block;
  width: 100%;
}

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

.form-control {
  border-radius: 4px;
  border: 1px solid #ced4da;
  height: 45px;
  padding: 10px 15px;
  transition: all 0.3s ease;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(60, 141, 188, 0.25);
}

.input-group-text {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: 4px 0 0 4px;
}

label {
  font-weight: 500;
  color: var(--text-color);
}

/* แจ้งเตือน */
.alert {
  border-radius: 5px;
  border: none;
  padding: 15px;
}

.alert-danger {
  background-color: rgba(221, 75, 57, 0.15);
  color: var(--danger-color);
  border-left: 4px solid var(--danger-color);
}

/* ลิงก์ */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* เอฟเฟกต์พิเศษ */
/* เพิ่มพื้นหลังที่มีความสวยงาม */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml,%3Csvg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z" fill="%233c8dbc" fill-opacity="0.05" fill-rule="evenodd"/%3E%3C/svg%3E');
  z-index: 0;
}

/* เพิ่มเอฟเฟกต์เคลื่อนไหวเล็กๆ น้อยๆ */
.card-header h4 {
  position: relative;
  display: inline-block;
}

.card-header h4::after {
  content: '';
  position: absolute;
  width: 40%;
  height: 3px;
  background: var(--white);
  bottom: -10px;
  left: 30%;
  border-radius: 2px;
}

/* อนิเมชันสำหรับฟอร์ม */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-group {
  animation: fadeIn 0.5s ease forwards;
}

.form-group:nth-child(1) {
  animation-delay: 0.1s;
}

.form-group:nth-child(2) {
  animation-delay: 0.2s;
}

.btn-primary {
  animation: fadeIn 0.5s ease forwards;
  animation-delay: 0.3s;
  opacity: 0;
}

.text-center {
  animation: fadeIn 0.5s ease forwards;
  animation-delay: 0.4s;
  opacity: 0;
}

/* สำหรับปรับใช้กับ Bootstrap 4 */
.bg-primary {
  background-color: var(--primary-color) !important;
}

.text-white {
  color: var(--white) !important;
}

.text-center {
  text-align: center !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}

.mt-3 {
  margin-top: 1rem !important;
}

/* สำหรับโหมดมือถือ */
@media (max-width: 576px) {
  .login-container {
    padding: 10px;
  }
  
  .card-body {
    padding: 20px;
  }
  
  .form-control {
    height: 40px;
  }
}