.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.auth-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-logo {
    text-align: center;
    margin-bottom: 30px;
}

.auth-logo img {
    height: 50px;
    width: auto;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.auth-header p {
    color: #6b7280;
    font-size: 1rem;
}

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

.auth-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
    font-size: 0.875rem;
}

.auth-form .required {
    color: var(--danger);
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #6b7280;
    z-index: 1;
}

.auth-form .form-control {
    padding-left: 45px;
    height: 48px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.auth-form .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6b7280;
    cursor: pointer;
    padding: 5px;
    transition: var(--transition);
}

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

.password-strength {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
    font-size: 0.875rem;
}

.forgot-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.forgot-link:hover {
    color: var(--secondary);
}

.auth-form .btn {
    margin-top: 10px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    color: #6b7280;
    font-size: 0.875rem;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.auth-footer a:hover {
    color: var(--secondary);
}

.social-login {
    margin-top: 30px;
}

.divider {
    text-align: center;
    position: relative;
    margin: 20px 0;
}

.divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background: #e5e7eb;
}

.divider span {
    background: white;
    padding: 0 15px;
    position: relative;
    color: #6b7280;
    font-size: 0.875rem;
}

.social-buttons {
    display: flex;
    gap: 10px;
}

.social-buttons .btn {
    flex: 1;
    height: 48px;
    border: 1px solid #e5e7eb;
    background: white;
    color: var(--dark);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-google:hover {
    background: #4285f4;
    color: white;
    border-color: #4285f4;
}

.btn-github:hover {
    background: #333;
    color: white;
    border-color: #333;
}

.auth-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
}

.auth-features .feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 0.875rem;
}

.auth-features .feature i {
    font-size: 1.125rem;
}

.alert {
    border: none;
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert i {
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: #047857;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #b91c1c;
}