:root {
  --primary-color: #34495e;
  --secondary-color: #34495e;
  --accent-color: #34495e;
  --dark-bg: #191919;
  --light-text: #fff;
  --card-bg: rgba(255, 255, 255, 0.1);
  --hover-effect: rgba(255, 165, 122, 0.4);
  --error-color: #2c3e50;
  --success-color: #2ecc71;
}

/* Reset & font */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

/* Animated gradient background */
@keyframes gradientMove {
  0% {background-position: 0% 50%;}
  50% {background-position: 100% 50%;}
  100% {background-position: 0% 50%;}
}

body {
  background: linear-gradient(-45deg, #b3e5fc, #81d4fa, #4dd0e1, #b2ebf2);
  background-size: 400% 400%;
  animation: gradientMove 12s ease infinite;
  min-height: 100vh;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--light-text);
}

/* Header / Nav */


/* Auth container */
.auth-container {
 display: flex;
  position: relative;
  top: 40px; /* ممكن تزوده أكتر */
  margin-top: 50px; /* دي هتزود المسافة عن الـ nav */
  width: 850px;
  min-height: 600px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  overflow: hidden;
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  flex-direction: row-reverse;
}

/* Sign-in box */
.signin-box {
  width: 50%;
  padding: 25px;
  background: linear-gradient(to bottom right, #f4f6fb, #e7edf5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #2c3e50;
}

.form-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-height: 100%;
  overflow-y: auto;
  padding: 5px;
}

.signin-title {
  font-size: 24px;
  margin-bottom: 10px;
  text-align: center;
  color: var(--accent-color);
  font-weight: 700;
}

.input-field {
  margin-bottom: 12px;
  position: relative;
}

.input-field label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: #2c3e50; 
  font-size: 13px;
}

.input-field input {
  width: 100%;
  padding: 12px 12px 12px 40px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.1);
  color: #2c3e50;
  transition: all 0.3s ease;
}

.input-field input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--hover-effect);
  outline: none;
  background: rgba(255, 255, 255, 0.15);
}

.input-field input:hover {
  border-color: #2980b9;
  background-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 0 3px rgba(41,128,185,0.2);
}

.signin-button {
 width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--light-text);
  border: none;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.3s ease-in-out;
}

.signin-button:hover {
  background: linear-gradient(135deg, #1c6690, #2980b9);
  transform: scale(1.03);
  box-shadow: 0px 6px 14px rgba(41,128,185,0.5);
}

.login-text {
  text-align: center;
  margin-top: 15px;
  color: #2c3e50;
  font-size: 13px;
}

.login-text a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
}

.login-text a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* Welcome section */
.welcome-section {
  width: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--light-text);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.welcome-title {
  font-size: 32px;
  margin-bottom: 15px;
  font-weight: 700;
}

/* Password & error messages */
.password-requirements, .error-message {
  font-size: 13px;
  color: #2c3e50;
}

.password-requirements {
  background: rgba(255,255,255,0.5);
  padding: 15px 20px;
  border-radius: 10px;
  margin: 10px 0 15px;
  border-left: 5px solid var(--accent-color);
}

.password-requirements li.valid:before {
  content: '✓';
  margin-right: 6px;
  color: var(--success-color);
}

.input-field.error input {
  border-color: var(--error-color);
  background: rgba(255, 74, 74, 0.05);
}

.input-field.error .icon {
  color: var(--error-color);
}

/* Responsive */
@media (max-width: 992px) {
  .auth-container {
    width: 90%;
    flex-direction: column;
    height: auto;
  }

  .signin-box, .welcome-section {
    width: 100%;
    padding: 30px 20px;
    box-shadow: none;
  }

  .welcome-title {
    font-size: 26px;
  }
}

@media (max-width: 600px) {
  .signin-title {
    font-size: 20px;
  }

  .welcome-title {
    font-size: 22px;
  }

  .signin-button {
    font-size: 14px;
    padding: 12px;
  }

  .input-field input {
    font-size: 13px;
    padding: 10px 10px 10px 35px;
  }

  .input-field .icon,
  .input-field .toggle-password {
    font-size: 13px;
    top: 32px;
  }

  .password-requirements {
    font-size: 12px;
    padding: 10px 15px;
  }

  .login-text {
    font-size: 12px;
  }
}