/* Glassmorphism Login Form - Complete & Self-Contained */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.6;
}

.login-container {
    width: 100%;
    max-width: 420px;
    perspective: 1000px;
}

/* Form Group & Input Styles */
.form-group {
    margin-bottom: 24px;
    position: relative;
}

.input-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
}

.input-wrapper input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 16px 16px 8px 16px;
    color: white;
    font-size: 16px;
    font-weight: 400;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    outline: none;
    backdrop-filter: blur(10px);
}

.pin-inputs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  width: 100%;       /* occupe toute la largeur dispo */
  max-width: 400px;  /* optionnel : limite la taille totale */
  margin: 20px auto; /* centré */
}

.pin-inputs input {
  width: 100%;  /* occupe toute la cellule */
  font-size: 28px;
  text-align: center;
  border: none;
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  font-family: monospace;
}

.pin-inputs input:focus {
  border-bottom-color: #007BFF;
}

.input-wrapper input::placeholder {
    color: #fff;
}

.input-wrapper label {
    position: absolute;
    left: 16px;
    top: 16px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    font-weight: 400;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    transform-origin: left top;
}


/* Error States */
.error-message {
    display: block;
    color: #ef4444;
    font-size: 12px;
    font-weight: 500;
    margin-top: 6px;
    margin-left: 4px;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(239, 68, 68, 0.1);
    padding: 4px 8px;
    border-radius: 6px;
    backdrop-filter: blur(10px);
    height: 30px;
}

.error-message.show {
    opacity: 1;
    transform: translateY(0);
}


/* Checkbox Styles */
.remember-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.remember-wrapper input[type="checkbox"] {
    display: none;
}

.checkbox-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.remember-wrapper input[type="checkbox"]:checked ~ .checkbox-label .checkmark {
    background: #06b6d4;
    border-color: #06b6d4;
    transform: scale(1.1);
}

.remember-wrapper input[type="checkbox"]:checked ~ .checkbox-label .checkmark::after {
    content: '✓';
    color: white;
    font-size: 11px;
    font-weight: bold;
    animation: checkmarkPop 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Animations */
@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes checkmarkPop {
    0% { transform: scale(0); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

@keyframes successPulse {
    0% { transform: scale(0); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.login-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transform: translateY(0);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #06b6d4, transparent);
    transition: left 0.5s ease;
}

.login-card:hover::before {
    left: 100%;
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h2 {
    color: white;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-weight: 400;
}


/* Mobile Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 24px;
        margin: 10px;
        border-radius: 20px;
    }
    
    .login-header h2 {
        font-size: 1.75rem;
    }
    
    .password-wrapper input {
        padding-right: 44px;
    }
    
    .social-login {
        flex-direction: column;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}