:root {
    --primary-color: #10B981;
    --text-dark: #111827;
    --text-light: #6B7280;
    --border-color: #E5E7EB;
    --bg-light: #F9FAFB;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-light);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    max-width: 440px;
    width: 100%;
}

.auth-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    padding: 40px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 22px;
}

.auth-logo img {
    height: 105px;
    margin-bottom: 5px;
}

.auth-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
    text-align: center;
}

.auth-subtitle {
    font-size: 0.95rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 32px;
    line-height: 1.5;
}

.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    display: block;
}

.form-control {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    width: 100%;
    transition: all 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
    outline: none;
}

.form-control.is-invalid {
    border-color: #EF4444;
}

.input-group {
    position: relative;
    margin-bottom: 1rem;
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    pointer-events: none;
    z-index: 1;
}

.input-group .form-control {
    padding-left: 45px;
}

.password-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 5px;
    transition: color 0.2s ease;
    z-index: 1;
}

.password-toggle:hover {
    color: var(--text-dark);
}

.password-strength {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: all 0.3s ease;
}

.strength-weak {
    background: #EF4444;
    width: 33%;
}

.strength-medium {
    background: #F59E0B;
    width: 66%;
}

.strength-strong {
    background: #10B981;
    width: 100%;
}

.form-check {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 1rem;
}

.form-check-input {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    margin-top: 2px;
    flex-shrink: 0;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--text-dark);
    cursor: pointer;
    margin: 0;
    line-height: 1.5;
}

.form-check-label a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.form-check-label a:hover {
    color: #0EA472;
}

.btn-primary {
    background: var(--primary-color);
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    width: 100%;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.btn-primary:hover {
    background: #0EA472;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

.forgot-link:hover {
    color: #0EA472;
}

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 24px 0;
    color: var(--text-light);
    font-size: 0.875rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.auth-divider span {
    padding: 0 16px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.auth-footer a:hover {
    color: #0EA472;
}

.alert {
    border-radius: 8px;
    border: none;
    padding: 12px 16px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-danger {
    background: #FEE2E2;
    color: #991B1B;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
}

.invalid-feedback {
    font-size: 0.825rem;
    margin-top: 6px;
    color: #EF4444;
    display: block;
}

.back-home {
    position: absolute;
    top: 20px;
    left: 20px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease;
}

.back-home:hover {
    color: var(--text-dark);
}

.d-flex {
    display: flex;
}

.justify-content-between {
    justify-content: space-between;
}

.align-items-center {
    align-items: center;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.me-2 {
    margin-right: 0.5rem;
}

/* Responsive */
@media (max-width: 576px) {
    body {
        padding: 15px;
    }
    
    .auth-card {
        padding: 32px 24px;
    }
    
    .auth-title {
        font-size: 1.5rem;
    }
    
    .auth-subtitle {
        font-size: 0.875rem;
    }
    
    .back-home {
        position: static;
        margin-bottom: 20px;
        justify-content: center;
    }
}

@media (max-width: 400px) {
    .auth-card {
        padding: 24px 20px;
    }
}