body {
  font-family: "Segoe UI", sans-serif;
  position: relative;
  overflow-x: hidden;
background-color: #ffffff;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25'%3E%3Cdefs%3E%3ClinearGradient id='a' gradientUnits='userSpaceOnUse' x1='0' x2='0' y1='0' y2='100%25' gradientTransform='rotate(18,720,382)'%3E%3Cstop offset='0' stop-color='%23ffffff'/%3E%3Cstop offset='1' stop-color='%23EBEBEB'/%3E%3C/linearGradient%3E%3Cpattern patternUnits='userSpaceOnUse' id='b' width='300' height='250' x='0' y='0' viewBox='0 0 1080 900'%3E%3Cg fill-opacity='0.06'%3E%3Cpolygon fill='%23444' points='90 150 0 300 180 300'/%3E%3Cpolygon points='90 150 180 0 0 0'/%3E%3Cpolygon fill='%23AAA' points='270 150 360 0 180 0'/%3E%3Cpolygon fill='%23DDD' points='450 150 360 300 540 300'/%3E%3Cpolygon fill='%23999' points='450 150 540 0 360 0'/%3E%3Cpolygon points='630 150 540 300 720 300'/%3E%3Cpolygon fill='%23DDD' points='630 150 720 0 540 0'/%3E%3Cpolygon fill='%23444' points='810 150 720 300 900 300'/%3E%3Cpolygon fill='%23FFF' points='810 150 900 0 720 0'/%3E%3Cpolygon fill='%23DDD' points='990 150 900 300 1080 300'/%3E%3Cpolygon fill='%23444' points='990 150 1080 0 900 0'/%3E%3Cpolygon fill='%23DDD' points='90 450 0 600 180 600'/%3E%3Cpolygon points='90 450 180 300 0 300'/%3E%3Cpolygon fill='%23666' points='270 450 180 600 360 600'/%3E%3Cpolygon fill='%23AAA' points='270 450 360 300 180 300'/%3E%3Cpolygon fill='%23DDD' points='450 450 360 600 540 600'/%3E%3Cpolygon fill='%23999' points='450 450 540 300 360 300'/%3E%3Cpolygon fill='%23999' points='630 450 540 600 720 600'/%3E%3Cpolygon fill='%23FFF' points='630 450 720 300 540 300'/%3E%3Cpolygon points='810 450 720 600 900 600'/%3E%3Cpolygon fill='%23DDD' points='810 450 900 300 720 300'/%3E%3Cpolygon fill='%23AAA' points='990 450 900 600 1080 600'/%3E%3Cpolygon fill='%23444' points='990 450 1080 300 900 300'/%3E%3Cpolygon fill='%23222' points='90 750 0 900 180 900'/%3E%3Cpolygon points='270 750 180 900 360 900'/%3E%3Cpolygon fill='%23DDD' points='270 750 360 600 180 600'/%3E%3Cpolygon points='450 750 540 600 360 600'/%3E%3Cpolygon points='630 750 540 900 720 900'/%3E%3Cpolygon fill='%23444' points='630 750 720 600 540 600'/%3E%3Cpolygon fill='%23AAA' points='810 750 720 900 900 900'/%3E%3Cpolygon fill='%23666' points='810 750 900 600 720 600'/%3E%3Cpolygon fill='%23999' points='990 750 900 900 1080 900'/%3E%3Cpolygon fill='%23999' points='180 0 90 150 270 150'/%3E%3Cpolygon fill='%23444' points='360 0 270 150 450 150'/%3E%3Cpolygon fill='%23FFF' points='540 0 450 150 630 150'/%3E%3Cpolygon points='900 0 810 150 990 150'/%3E%3Cpolygon fill='%23222' points='0 300 -90 450 90 450'/%3E%3Cpolygon fill='%23FFF' points='0 300 90 150 -90 150'/%3E%3Cpolygon fill='%23FFF' points='180 300 90 450 270 450'/%3E%3Cpolygon fill='%23666' points='180 300 270 150 90 150'/%3E%3Cpolygon fill='%23222' points='360 300 270 450 450 450'/%3E%3Cpolygon fill='%23FFF' points='360 300 450 150 270 150'/%3E%3Cpolygon fill='%23444' points='540 300 450 450 630 450'/%3E%3Cpolygon fill='%23222' points='540 300 630 150 450 150'/%3E%3Cpolygon fill='%23AAA' points='720 300 630 450 810 450'/%3E%3Cpolygon fill='%23666' points='720 300 810 150 630 150'/%3E%3Cpolygon fill='%23FFF' points='900 300 810 450 990 450'/%3E%3Cpolygon fill='%23999' points='900 300 990 150 810 150'/%3E%3Cpolygon points='0 600 -90 750 90 750'/%3E%3Cpolygon fill='%23666' points='0 600 90 450 -90 450'/%3E%3Cpolygon fill='%23AAA' points='180 600 90 750 270 750'/%3E%3Cpolygon fill='%23444' points='180 600 270 450 90 450'/%3E%3Cpolygon fill='%23444' points='360 600 270 750 450 750'/%3E%3Cpolygon fill='%23999' points='360 600 450 450 270 450'/%3E%3Cpolygon fill='%23666' points='540 600 630 450 450 450'/%3E%3Cpolygon fill='%23222' points='720 600 630 750 810 750'/%3E%3Cpolygon fill='%23FFF' points='900 600 810 750 990 750'/%3E%3Cpolygon fill='%23222' points='900 600 990 450 810 450'/%3E%3Cpolygon fill='%23DDD' points='0 900 90 750 -90 750'/%3E%3Cpolygon fill='%23444' points='180 900 270 750 90 750'/%3E%3Cpolygon fill='%23FFF' points='360 900 450 750 270 750'/%3E%3Cpolygon fill='%23AAA' points='540 900 630 750 450 750'/%3E%3Cpolygon fill='%23FFF' points='720 900 810 750 630 750'/%3E%3Cpolygon fill='%23222' points='900 900 990 750 810 750'/%3E%3Cpolygon fill='%23222' points='1080 300 990 450 1170 450'/%3E%3Cpolygon fill='%23FFF' points='1080 300 1170 150 990 150'/%3E%3Cpolygon points='1080 600 990 750 1170 750'/%3E%3Cpolygon fill='%23666' points='1080 600 1170 450 990 450'/%3E%3Cpolygon fill='%23DDD' points='1080 900 1170 750 990 750'/%3E%3C/g%3E%3C/pattern%3E%3C/defs%3E%3Crect x='0' y='0' fill='url(%23a)' width='100%25' height='100%25'/%3E%3Crect x='0' y='0' fill='url(%23b)' width='100%25' height='100%25'/%3E%3C/svg%3E");
background-attachment: fixed;
background-size: cover;
}
html, body{
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column; 
}
main{
  flex: 1;
  display: flex;
    justify-content: center;
  align-items: center;
}
.login-container {
   flex: 1;
  width: 100%;
  max-width: 400px;
  padding: 20px;
}
footer {
  flex-shrink: 0;
}

.login-box {
  background-color: white;
  padding: 35px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.login-header {
  text-align: center;
  margin-bottom: 25px;
}

.logo {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: 10px;
}

.login-header h2 {
  font-size: 22px;
  color: #000000;
  font-weight: 600;
}

.login-header h3 {
  font-size: 18px;
  color: #000000;
  font-weight: 650;
}

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

label {
  display: block;
  font-size: 14px;
  color: #555;
  margin-bottom: 6px;
  font-weight: 500;
}

.input-icon {
  position: relative;
}

.input-icon i {
  position: absolute;
  top: 50%;
  left: 12px;
  transform: translateY(-50%);
  color: #888;
}

.input-icon input {
  width: 100%;
  padding: 10px 10px 10px 36px;
  font-size: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
  transition: border-color 0.3s ease;
}

.input-icon input:focus {
  border-color: #007bff;
  outline: none;
}

.btn-login {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  background-color: #007bff;
  border: none;
  border-radius: 6px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-login:hover {
  background-color: #0056b3;
}
.custom-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  animation: fadeIn 0.2s ease-in-out;
}

.custom-modal.show {
  display: flex;
}

.custom-modal-content {
  background: white;
  padding: 30px 35px;
  border-radius: 12px;
  text-align: center;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
  animation: slideIn 0.3s ease-in-out;
}

.custom-modal-text {
  font-size: 16px;
  color: #dc3545;
  font-weight: 600;
  margin-bottom: 20px;
  display: block;
}

.custom-modal-btn {
  background: #007bff;
  color: white;
  border: none;
  padding: 10px 30px;
  font-size: 14px;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease;
}

.custom-modal-btn:hover {
  background-color: #0056b3;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideIn {
  from { transform: scale(0.9); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.modal-alert {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.modal-alert.show {
  display: flex;
}

.modal-box {
  background: #fff;
  padding: 25px 30px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
  max-width: 320px;
  width: 90%;
  text-align: center;
  animation: fadeIn 0.3s ease-in-out;
}

.modal-box h3 {
  font-size: 20px;
  color: #000;
  margin-bottom: 10px;
}

.modal-box p {
  font-size: 15px;
  color: #333;
  margin-bottom: 20px;
}

.modal-box button {
  background-color: #007bff;
  border: none;
  color: white;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.modal-box button:hover {
  background-color: #0056b3;
}

@keyframes fadeIn {
  from { transform: scale(0.9); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}